A tunnel segment installation device and method

Abstract

This invention provides a tunnel segment installation device and method, including an arc-shaped arch frame, a first connecting frame slidably connected to the arc-shaped arch frame, a first arc-shaped block installed on the first connecting frame, the first arc-shaped block being movable on the first connecting frame to form an arc shape, a corrugated steel segment placed on the first arc-shaped block, the corrugated steel segment fitting snugly against the first arc-shaped block, a clamping mechanism located on the first arc-shaped block, and the clamping mechanism used to fix the corrugated steel segment; a traction mechanism fixedly connected to the corrugated steel segment, the traction mechanism used to pull the two ends of the corrugated steel segment, shortening the chord length of the corrugated steel segment. This invention solves the problem in the prior art where, when the actual local cross-section is smaller than the design cross-section, after forcibly squeezing the last corrugated steel segment into the predetermined position, the corrugated steel segment is in a high-stress state, and under the action of subsequent external loads, it is prone to prematurely entering the yielding stage, thus reducing the structural safety.

Description

Technical Field

[0001] This invention belongs to the field of tunnel support technology, and in particular relates to a tunnel segment installation device and installation method. Background Technology

[0002] In tunnel construction, prefabricated corrugated steel pipe segments are used for assembly and support. Multiple arc-shaped corrugated plates are spliced ​​into a ring structure by bolts, and the geometric stiffness of the corrugations is used to withstand the pressure of the surrounding rock. However, in actual engineering applications, the excavation outline of the tunnel is often difficult to completely and accurately fit the design theoretical line, and the inner wall surface of the tunnel after completion often presents an uneven state.

[0003] During installation, existing corrugated steel pipe segments are assembled from both sides towards the center, with each segment positioned and fixed individually. When the actual cross-section in some areas is smaller than the design cross-section, by the time the last corrugated steel pipe segment is installed, the remaining segments have already occupied most of the space. Furthermore, the actual tunnel cross-section has decreased, and the reserved installation gap is smaller than the design gap. To achieve closure, construction workers typically apply enormous radial compressive force to the last corrugated pipe segment, forcibly pressing it into the predetermined position. At this point, only the last segment in the entire cross-section experiences significant compressive force, resulting in the segment being in a high-stress state. Under subsequent external loads, it is prone to prematurely entering the yielding stage, thus reducing the structural safety. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a tunnel segment installation device and method to solve the problem that in the prior art, when the actual local cross-section is smaller than the design cross-section, after the last corrugated steel segment is forcibly squeezed into the predetermined position, the corrugated steel segment is in a high stress state and is prone to prematurely entering the yielding stage under the action of subsequent external loads, thereby reducing the safety of the structure.

[0005] To achieve the above and other related objectives, the present invention provides a tunnel segment installation device, including an arc-shaped arch frame. A first connecting frame is slidably connected to the arc-shaped arch frame, and the first connecting frame moves along the arc-shaped arch frame. A first arc-shaped block is mounted on the first connecting frame. The first arc-shaped block can move radially along the center of the first connecting frame, forming an arc shape. A corrugated steel pipe sheet is placed on the first arc-shaped block, and the corrugated steel pipe sheet is in contact with the first arc-shaped block. A clamping mechanism is located on the first arc-shaped block, and the clamping mechanism is used to fix the corrugated steel pipe sheet; Several traction mechanisms are fixedly connected to the corrugated steel pipe segments. These traction mechanisms are used to pull the two ends of the corrugated steel pipe segments, shortening the chord length of the corrugated steel pipe segments. The traction mechanism includes several sets of connecting components and a retraction assembly. The connecting components are arranged parallel to each other and are horizontally distributed along the width of the corrugated steel pipe segment. Each connecting component includes two ropes, one end of which is fixedly connected to both ends of the corrugated steel pipe segment. The two ropes are collinear and parallel to the chord of the corrugated steel pipe segment. The other ends of the ropes are fixedly connected to the retraction assembly. The retraction section of the retraction assembly is used to pull the ropes and shorten the chord length of the corrugated steel pipe segment.

[0006] As an optional solution, a third fixing groove is provided on the first arc-shaped block, the corrugated steel pipe sheet includes a plurality of second fixing holes, and the traction mechanism is located in the third fixing groove; The retraction assembly includes a double-headed hydraulic cylinder, with a fourth connecting block fixedly connected to each end of the cylinder. Several ropes are fixedly connected to the fourth connecting blocks, and a first fixing plate is provided at the other end of each rope. A second fixing plate is connected to the first fixing plate by fastening bolts. The second fixing plate is fitted onto the steel cable. The corrugated steel pipe includes a first connecting block located between the first and second fixing plates. The fastening bolts fix the first and second fixing plates to the first connecting block. The traction mechanism also includes a fixed sleeve, on which two second connecting rods are fixedly connected. The double-headed hydraulic cylinder and the second connecting rods are both oriented towards the width direction of the corrugated steel pipe segment. Two first connecting plates are fixedly connected between the two second connecting rods. The two first connecting plates are respectively located at both ends of the second connecting rods and are in contact with the corrugated steel pipe segment. The two second connecting rods and the two first connecting plates are locked inside the corrugated steel pipe segment. Two one-way moving elements are provided on the second connecting rods, and the two one-way moving elements are respectively aligned with the two fourth connecting blocks. The unidirectional moving element includes two second movable blocks, which are slidably mounted on the two second connecting rods along the length of the second connecting rods. A connecting block is fixedly connected between the two second movable blocks. The two steel cables are located between the two second movable blocks and below the connecting block. The second movable blocks are provided with arc-shaped surfaces, and the two steel cables are in contact with the two arc-shaped surfaces respectively. The second movable blocks are provided with through holes, and a locking pin is slidably mounted in the through holes. The locking pin is vertical. The second connecting rods are provided with several locking holes, which are countersunk holes. The locking pin is mounted in one of the locking holes, and one side of the locking pin is inclined. Two ropes are connected to the first connecting plate, and both ropes are fixedly connected to the arc-shaped plate. Two mating blocks are fixedly connected to the arc-shaped plate, and the two mating blocks are engaged in the corresponding second fixing holes.

[0007] As an optional solution, the arc-shaped arch frame includes two first arch frames, each of which is slidably fitted with a moving device. The moving device moves on the first arch frame, and the first connecting frame is fixedly connected to the two moving devices, with the first connecting frame located between the two moving devices. The clamping mechanism includes two telescopic components and two fixed components. The first arc-shaped block is located between the two moving devices. The two fixed components are respectively fixedly connected to the two telescopic components. The two telescopic components are located at both ends of the first arc-shaped block. The telescopic component includes a second arc-shaped block and a third arc-shaped block. A first fixing groove is formed on the first arc-shaped block, and the second arc-shaped block is located within the first fixing groove. The second arc-shaped block is provided with two first limiting blocks, and two first limiting grooves are formed on the first arc-shaped block. The two first limiting grooves coincide with the arc shape of the first arc-shaped block, and the two first limiting blocks are slidably engaged within the two first limiting grooves. The second arc-shaped block moves within the first arc-shaped block and slides along the length direction of the first arc-shaped block. Two cylinders are provided at one end of the first fixing groove. The two cylinders are respectively located at one end of the two first limiting grooves. The cylinders are rotatably connected to the first fixing groove. A first connecting groove is formed on the cylinder, which communicates with the first limiting groove. The width of the cylinder is the same as the width of the first limiting groove. The second arc-shaped block is U-shaped, and the third arc-shaped block is located inside the U-shaped opening of the second arc-shaped block. The second arc-shaped block has two second limiting grooves, and the third arc-shaped block is provided with two second limiting blocks. The two second limiting blocks are slidably engaged in the two second limiting grooves respectively, and the sliding direction of the third arc-shaped block is the same as the sliding direction of the second arc-shaped block.

[0008] As an optional solution, the corrugated steel pipe segment also includes a corrugated sheet and two rectangular pieces, the two rectangular pieces being fixedly connected to both ends of the corrugated sheet, and each of the two rectangular pieces having a plurality of first fixing holes. The fixing component includes a movable frame, which is fixedly connected to the third arc-shaped block. The movable frame is perpendicular to the third arc-shaped block and parallel to the rectangular piece. Two first movable blocks are slidably mounted on the movable frame. The two first movable blocks are located within the corrugations of the corrugated sheet and are in contact with the corrugated sheet. Each of the two first movable blocks is fitted with a first locking block, and the two first locking blocks are respectively fitted into the corresponding first fixing holes. A first fixed block is fixedly connected to the first movable block, a screw is threaded through the first fixed block, the screw is threadedly connected to the first fixed block, one end of the screw abuts against the movable frame, and a threaded nut is provided on the screw, the nut is in contact with the first fixed block; The first connecting frame has a first fixed seat at its bottom end, and a first hydraulic cylinder is mounted on the first fixed seat. The telescopic end of the first hydraulic cylinder faces away from the center of the circle, and the fixed end of the first hydraulic cylinder is fixedly connected to the first fixed seat. The first arc-shaped block has a first connecting rod at its bottom end, and the telescopic end of the first hydraulic cylinder is fixedly connected to the first connecting rod. Two first cylinders are arranged between the two movable frames and the first connecting rod. The telescopic end of the first cylinder is hinged to the movable frame, and the fixed end of the first cylinder is hinged to the first connecting rod.

[0009] As an optional solution, a rotating mechanism is provided between the first connecting frame and the first connecting rod, and the rotating mechanism is used to drive the first arc-shaped block to rotate. The rotating mechanism includes a fixed sleeve, which is vertical. The fixed sleeve is fixedly connected to the first connecting frame through two first fixed frames. The first hydraulic cylinder is located below the fixed sleeve. The first connecting rod passes through the fixed sleeve and moves vertically inside the fixed sleeve. Two mating components are provided between the first connecting frame and the fixed sleeve. The mating assembly includes a slider with an inclined top. A second fixing groove is provided on the first connecting rod. The slider is horizontally slidably fitted into the second fixing groove, with one end of the slider located outside the second fixing groove. A spring is provided inside the second fixing groove, with both ends of the spring contacting the slider and the bottom wall of the second fixing groove, respectively. The first fixing frame has a mating groove, and the slider is slidably engaged in the mating groove. The mating groove includes a first sliding groove, a second sliding groove, a third sliding groove, a fourth sliding groove, a fifth sliding groove, and a sixth sliding groove. The second sliding groove and the fourth sliding groove are both spiral-shaped with an angle of 90 degrees. The first sliding groove, the third sliding groove, the fifth sliding groove, and the sixth sliding groove are all vertical. The first sliding groove is located below the second sliding groove and is connected to the second sliding groove. The third sliding groove is located above the second sliding groove and is connected to the second sliding groove. The fourth sliding groove is located above the third sliding groove, and the fifth sliding groove is located above the fourth sliding groove and is connected to the fifth sliding groove. The sixth sliding groove is also located above the third sliding groove and is connected to both the fourth and sixth sliding grooves.

[0010] As an optional solution, two auxiliary rotation mechanisms are provided between the first arc-shaped block and the moving device, and the two auxiliary rotation mechanisms are respectively located on the two moving devices; The auxiliary rotating mechanism includes an arc-shaped frame. The arc-shaped frame has two ends that contact the moving device. A fourth limiting groove, also arc-shaped, is formed on the arc-shaped frame. Several fourth limiting blocks are provided at the bottom of the first arc-shaped block. These fourth limiting blocks can slide within the fourth limiting groove. A connecting block is fixedly connected to the arc-shaped frame. The connecting block is vertically slidably connected to the moving device. A third limiting block is provided on the connecting block. A third limiting groove is formed on the moving device, and the connecting block is vertically slidably engaged in the third limiting groove. A rotating sleeve is rotatably connected to the first connecting rod, a second connecting frame is fixedly connected to the rotating sleeve, a connecting seat is fixedly connected to the second connecting frame, the connecting seat is vertical, and two clamping components are provided between the arc-shaped frame and the connecting seat. The clamping assembly includes a second fixing block, which is fixedly connected to the connecting seat. The second fixing block has a second connecting groove. A support rod is provided between the connecting block and the arc frame. The support rod is vertically aligned with the second connecting groove. The second fixing block has a rectangular groove. A rectangular block is horizontally slidably connected in the rectangular groove. A third fixing block is fixedly connected to the rectangular block. The third fixing block is vertical. A fourth fixing block is fixedly connected to the third fixing block. The fourth fixing block is perpendicular to the third fixing block and aligned with the top of the second fixing block. A third connecting block is fixedly connected between the two second fixing blocks, and a crossbar is fixedly connected between the two third fixing blocks. A second cylinder is provided between the third connecting block and the crossbar. The fixed end of the second cylinder is fixedly connected to the third connecting block, and the telescopic end of the second cylinder is fixedly connected to the crossbar.

[0011] As an optional solution, the arc-shaped arch frame further includes two second connecting blocks, two second arch frames, and two third arch frames. The length direction of the second connecting blocks is parallel to the length direction of the tunnel. The two second connecting blocks are located on both sides of the tunnel. The two ends of the first arch frame, the second arch frame, and the third arch frame are fixedly connected to the two second connecting blocks. One of the two second arch frames and the two third arch frames is fixedly connected to the two ends of the second connecting block. The two first arch frames are fixedly connected to the middle section of the second connecting block. The two third arch frames are located between the two second arch frames, and the two first arch frames are located between the two third arch frames; The radius of the third arch is smaller than the radius of the second arch, and the radius of the first arch is equal to the radius of the second arch. Both of the two second connecting blocks are equipped with a walking device; The corrugated steel pipe segment is provided with a support mechanism, which is used to temporarily fix the corrugated steel pipe segment to the inner wall of the tunnel. The support mechanism includes a third connecting rod, on which a U-shaped block is mounted. The U-shaped block is U-shaped and mounted on the third arch frame. A third fixed frame is mounted at the top of the third connecting rod, located above the U-shaped block. The third fixed frame is U-shaped and has two third movable blocks slidably connected to it. The moving direction of the third movable blocks is towards the corrugated steel pipe. A fourth connecting rod is fixedly connected between the two third movable blocks. A fourth cylinder is mounted between the fourth connecting rod and the third fixed frame. The fixed end of the fourth cylinder is fixedly connected to the third fixed frame, and the telescopic end of the fourth cylinder is fixedly connected to the fourth connecting rod. A first stop and a second stop are mounted on the third movable block near the corrugated steel pipe. The second stop is magnetic. Several of the aforementioned support mechanisms are located on both sides of the second connecting block. The corrugated steel pipe sheet includes two arc-shaped pieces. The second stop is located below the corrugated steel pipe sheet. The second stop in the support mechanism located in front of the corrugated steel pipe sheet is closer to the fourth cylinder, and the first stop in the support mechanism located behind the corrugated steel pipe sheet is closer to the fourth cylinder. The connecting seat is provided with a telescopic rod, the fixed end of the telescopic rod is fixedly connected to the connecting seat, and the telescopic end of the connecting seat is provided with an electromagnet, which is aligned with the bottom end of the third connecting rod.

[0012] As an optional solution, a second fixed frame is fixedly connected to both ends of the movable frame. The second fixed frame is provided with a connecting mechanism, which is used to temporarily connect the two corrugated steel pipe segments. The connecting mechanism includes a second locking block. A second fixing frame has a locking groove, and the second locking block is engaged in the locking groove. One end of the second locking block is fixedly connected to a first support frame. A first clamping block is hinged to the first support frame. The first clamping block is vertical and contacts the rectangular piece. The other end of the second locking block has a second sliding groove, in which the second support frame is horizontally slidably engaged. The second support frame has a second clamping block hinged to it, and the second clamping block is aligned with the first clamping block. A support base is fixedly connected to the second locking block. A third cylinder is mounted on the support base. The telescopic end of the third cylinder faces the first clamping block and is fixedly connected to the second clamping block. The fixed end of the third cylinder is fixedly connected to the support base. A tension spring is connected between the second clamping block and the first clamping block. The tension spring is located between the first clamping block and the second clamping block. The second clamping block is inclined. The first clamping block and the second clamping block are in a figure-eight shape with the opening facing upwards.

[0013] As an optional solution, two fixed rods are fixedly connected to the moving device. The fixed rods are in contact with the bottom surface of the arc-shaped piece. The height of the rectangular piece is higher than the height of the arc-shaped piece, so the fixed rods can block the rectangular piece. The two fixed rods are provided with detachable second connecting plates. A pressure block is fixedly connected to the top of the second connecting plate. The pressure block is perpendicular to the second connecting plate. The bottom surface of the pressure block contacts the top surface of the arc-shaped piece. The pressure block is provided with a pressing surface.

[0014] An installation method for a tunnel segment installation device includes several corrugated steel segments installed on the left side of the tunnel's curved surface as left-side corrugated steel segments, several corrugated steel segments installed on the right side of the tunnel's curved surface as right-side corrugated steel segments, and a closure corrugated steel segment located between the left-side and right-side corrugated steel segments, the closure corrugated steel segment comprising two corrugated steel segments. The installation method includes the following steps: Preparation on the left side: First, move the arched frame to the designated position. Then, the staff need to stack the corrugated steel pipe segments on the right side of the tunnel to complete the stacking of the corrugated steel pipe segments. At the same time, the staff need to conduct a survey and compare the actual cross-section with the design cross-section. Based on the difference between the actual cross-section and the design cross-section, a strategy for the subsequent installation of corrugated steel pipe segments will be formulated. Solution: When the actual cross-section is smaller than the design cross-section by more than 2%, install a traction mechanism inside the corrugated steel pipe segment; Clamping steps: Then, start the first hydraulic cylinder, first fully extend the first hydraulic cylinder, then retract the first hydraulic cylinder, so that the slider moves into the third slide groove. At this time, the first arc block rotates 90 degrees. Then, control the movement of the first arc block through the moving device, move the first arc block to the position where the corrugated steel pipe sheet is aligned, then start the first hydraulic cylinder to extend, so that the first arc block fits with the corrugated steel pipe sheet. At this time, the traction mechanism is located in the third fixed groove. Then, start the clamping mechanism, and fix the corrugated steel pipe sheet on the first arc block through the clamping mechanism. When there is an already installed corrugated steel pipe sheet next to the corrugated steel pipe sheet to be installed, the operator needs to install the connecting mechanism on the second fixed frame. At this time, the rectangular piece is located between the first clamping block and the second clamping block. Moving steps: Start the moving device and move it to align with the support mechanism. At the same time, fully retract the first hydraulic cylinder to move the first arc block to the initial position. Stop the moving device when it is aligned with the electromagnet and the third connecting rod. Then fix the support mechanism on the moving device and control the U-shaped block to separate from the third arch frame. Start the moving device again to move the corrugated steel pipe segment to the installation position. At this time, the corrugated steel pipe segment passes through the detection device, which records various data of the corrugated steel pipe segment. Installation steps: Activate the first hydraulic cylinder, which drives the first arc-shaped block and corrugated steel pipe segment to extend radially, holding the corrugated steel pipe segment against the tunnel inner wall. The support mechanism moves with the corrugated steel pipe segment. Then, the U-shaped block is clamped onto the second arch frame. At this time, the support mechanism supports the corrugated steel pipe segment. Simultaneously, the connecting mechanism is activated to fix the rectangular pieces of the two sets of corrugated steel pipe segments that are in contact, thus ensuring the fixation between the two corrugated steel pipe segments and completing the installation of one of the corrugated steel pipe segments. Then release the clamping mechanism from fixing the corrugated steel pipe segment, and then start the first hydraulic cylinder to retract. At this time, the first arc block will rotate. After the first arc block rotates 90 degrees, it stops. Repeat the clamping step, moving step and installation step to complete the temporary fixing of the left corrugated steel pipe segment. Right-side installation steps: Workers stack the remaining corrugated steel pipe segments on the left side of the tunnel and repeat the clamping, moving, and installation steps to temporarily fix the right-side corrugated steel pipe segments. Closure clamping steps: For simultaneous installation of the closure corrugated steel pipe segments, firstly, fix the two corrugated steel pipe segments on the first arc block, and simultaneously install the second connecting plate on the fixed rod. Then, start the moving device to move the two corrugated steel pipe segments below the installation position. Then, start the two first cylinders to extend, driving the second and third arc blocks to rotate around the cylinder, while simultaneously moving the two corrugated steel pipe segments. At this time, the two corrugated steel pipe segments are in a V shape. When the corrugated steel pipe segments rotate around the fixed rod, they will contact the pressure block. As the included angle between the two corrugated steel pipe segments decreases, the corrugated steel pipe segments squeeze the pressing surface, causing the pressure block and the second connecting plate to move away from the corrugated steel pipe segments until the second connecting plate separates from the fixed rod. Traction Steps: Activate the traction mechanism to shorten the arc length of each corrugated steel pipe segment. By shortening the arc length of each corrugated steel pipe segment, an internal stress is applied to the corrugated steel pipe segment through the traction mechanism. At this time, the remaining installation space will slowly increase. The length by which the traction mechanism shortens the arc length is related to the arc length of the corrugated steel pipe segment itself. The calculation is based on the arc length measured by the detection device. The longer the arc length of the corrugated steel pipe segment, the longer the shortening length, and the shorter the arc length of the corrugated steel pipe segment, the shorter the shortening length. At this time, the remaining installation space will slowly increase until the remaining installation space expands to the specified space and then stops. Closure Installation Steps: The first hydraulic cylinder extends upwards, allowing the two rectangular corrugated steel pipe segments at their highest points to move smoothly into the installation space without obstruction. After the corrugated steel pipe segments contact the tunnel wall, the first hydraulic cylinder continues to extend. At this time, the first air cylinder slowly retracts, increasing the angle of the V-shape. When the corrugated steel pipe segment contacts the adjacent corrugated steel pipe segment, the contact point remains stationary. The connection point of the two corrugated steel pipe segments continues to move upwards, gradually changing from a V-shape to an installation posture. The two corrugated steel pipe segments then press against each other, simultaneously pressing against adjacent corrugated steel pipe segments until the first hydraulic cylinder is fully extended. At this point, the two corrugated steel pipe segments are installed in the designated position, completing the installation of all corrugated steel pipe segments on the arc-shaped cross-section. At this time, all corrugated steel pipe segments are subjected to the same internal stress, and the deformation stress is shared among them. Fixing steps: Then fix the corrugated steel pipe segments to the adjacent corrugated steel pipe segments with bolts, so that the left corrugated steel pipe segments, the right corrugated steel pipe segments, and the closing corrugated steel pipe segments are connected into a whole.

[0015] As described above, the tunnel segment installation device and method of the present invention have at least the following beneficial effects: When installing the last two corrugated steel pipe segments, the remaining installation space is compared with the required space, and different approaches are taken. When there is sufficient space, normal installation is carried out; when the space is slightly insufficient, the expansion joints on both sides are tilted upward around the fixing rod, so that the two corrugated steel pipe segments form a V shape. Then, the two corrugated steel pipe segments are squeezed into the installation position. During installation, the two V-shaped corrugated steel pipe segments will slowly flatten back. The two corrugated steel pipe segments are installed by squeezing. At this time, the deformation of the two corrugated steel pipe segments is shared, avoiding the problem that one corrugated steel pipe segment is in a high stress state and will prematurely enter the yield stage during later support, thereby reducing the safety of the structure. When space is severely limited, each corrugated steel pipe segment is first shortened using a traction mechanism. Differential traction is then applied based on the actual arc length measured by the detection device, ensuring that each corrugated steel pipe segment receives uniform and controllable pre-stress before installation. This slightly expands the installation space. Then, the last two corrugated steel pipe segments are installed in a V-shape at the installation position. At this point, the deformation is shared by the entire arc-shaped corrugated steel pipe segment, effectively avoiding local stress concentration and ensuring the safety of the structure. Attached Figure Description

[0016] Figure 1 Shown as a front view of the present invention; Figure 2 The diagram shown is a structural schematic of the present invention. Figure 3 The diagram shown is a partial structural schematic of the present invention; Figure 4 Shown as a side view of the present invention; Figure 5 The diagram shown is an exploded view of the clamping mechanism of the present invention. Figure 6 This is shown as being in the present invention. Figure 5 Enlarged view of point A in the middle; Figure 7 The diagram shown is a structural schematic of the rotating mechanism of the present invention. Figure 8 This is shown as being in the present invention. Figure 7 Enlarged view of point B in the middle; Figure 9 The diagram shown is a structural schematic of the auxiliary rotation mechanism of the present invention. Figure 10 The diagram shown is a structural schematic of the connection mechanism of the present invention. Figure 11 The diagram shown is an installation schematic of the traction mechanism of the present invention; Figure 12 The diagram shown is a structural schematic of the traction mechanism of the present invention. Figure 13 This is shown as being in the present invention. Figure 12 Enlarged view of point C in the middle; Figure 14 This is shown as being in the present invention. Figure 12 Enlarged view of point D in the middle; Figure 15 The diagram shown is a structural schematic of the support mechanism in this invention. Figure 16 This is shown as being in the present invention. Figure 15 Enlarged view of point E in the middle; Figure 17 The diagram shows a schematic of two corrugated steel pipe pieces being clamped simultaneously in this invention. Figure 18 The diagram shown is a structural schematic of the second connecting plate in this invention.

[0017] In the picture: Tunnel body 101, working platform 102, corrugated steel pipe segment 103, corrugated sheet 104, rectangular sheet 105, arc-shaped sheet 106, first fixing hole 107, second fixing hole 108, first connecting block 109; Arc-shaped arch frame 201, walking device 202, second connecting block 203, first arch frame 204, second arch frame 205, third arch frame 206, moving device 207, first connecting frame 208; First fixed seat 301, first hydraulic cylinder 302, first connecting rod 303, first arc-shaped block 304, first fixed groove 305, second arc-shaped block 306, first limiting groove 307, first limiting block 308, cylinder 309, first connecting groove 310, third arc-shaped block 311, movable frame 312, first movable block 313, first locking block 314, first fixed block 315, nut 316, screw 317, first cylinder 318, second limiting block 319, second limiting groove 320; Fixed sleeve 401, first fixed frame 402, first slide groove 403, second slide groove 404, third slide groove 405, fourth slide groove 406, fifth slide groove 407, sixth slide groove 408, second fixed groove 409, spring 410, slider 411, second connecting frame 412, first connecting seat 413, third limiting groove 414, arc frame 415, fourth limiting groove 416, fourth limiting block 417, support rod 418, second connecting seat 419, second fixed block 420, second connecting groove 421, rectangular groove 422, rectangular block 423, third fixed block 424, fourth fixed block 425, third connecting block 426, second cylinder 427, rotating sleeve 428; Second locking block 501, first support frame 502, first clamping block 503, second sliding groove 504, second support frame 505, second clamping block 506, tension spring 507, support base 508, third cylinder 509, second fixing frame 510, locking groove 511; Fixed sleeve 601, second connecting rod 602, first connecting plate 603, rope 604, arc plate 605, mating block 606, double-headed hydraulic cylinder 607, fourth connecting block 608, steel cable 609, first fixed plate 610, second fixed plate 611, fastening bolt 612, second movable block 613, arc surface 614, through hole 615, locking pin 616, locking hole 617, third fixing groove 618; Telescopic rod 701, electromagnet 703, third connecting rod 704, third fixed frame 705, third movable block 706, fourth connecting rod 707, fourth cylinder 708, first stop block 709, second stop block 710, U-shaped block 711; Fixed rod 801, second connecting plate 802, pressure block 803, extrusion surface 804; Second fixed base 901, detection device 902. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0019] Please see Figures 1 to 18It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0020] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in the individual embodiments described below.

[0021] Please see Figure 1 The present invention provides a tunnel segment installation device, including a tunnel body 101, a working platform 102 provided inside the tunnel body 101, and a plurality of support components provided on the inner wall of the tunnel body 101. The plurality of support components are arranged horizontally along the length direction of the tunnel body 101. The support components include a plurality of corrugated steel segments 103. The plurality of corrugated steel segments 103 are located in the same arc-shaped cross section and are arranged in a ring on the inner wall of the tunnel body 101. The rectangular pieces 105 of two adjacent corrugated steel segments 103 are in contact with each other. like Figure 11 As shown, the corrugated steel pipe 103 is arc-shaped. The corrugated steel pipe 103 includes a corrugated sheet 104, two rectangular sheets 105 and two arc-shaped sheets 106. The two rectangular sheets 105 and the two arc-shaped sheets 106 are fixedly connected to the corrugated sheet 104. The rectangular sheet 105 has several first fixing holes 107, and the arc-shaped sheets 106 have several second fixing holes 108. The rectangular sheet 105 is provided with two first connecting blocks 109. The corrugated steel pipe 103 is the prior art and is a commonly used technical means by those skilled in the art. The corrugated steel pipe 103 has several models, but the width of each corrugated steel pipe 103 is the same, and the chord length of different models of corrugated steel pipe 103 is different. like Figure 1 and Figure 2As shown, an arc-shaped arch frame 201 is provided inside the tunnel body 101. The arc-shaped arch frame 201 includes two second connecting blocks 203, two first arch frames 204, two second arch frames 205, and two third arch frames 206. The length direction of the second connecting blocks 203 is parallel to the length direction of the tunnel body 101. The two second connecting blocks 203 are located on both sides of the tunnel body 101. The two ends of the first arch frames 204, second arch frames 205, and third arch frames 206 are fixedly connected to the two second connecting blocks 203, respectively. One of the two second arch frames 205 and two third arch frames 206 is fixedly connected to the two ends of the second connecting blocks 203, respectively. The two first arch frames 204 are fixedly connected to the second connecting blocks 203. In the middle section, two third arch frames 206 are located between two second arch frames 205, and two first arch frames 204 are located between two third arch frames 206; the radius of the third arch frame 206 is smaller than the radius of the second arch frame 205, and the radius of the first arch frame 204 is equal to the radius of the second arch frame 205; each of the two second connecting blocks 203 is equipped with a walking device 202, which is in contact with the ground and is used to drive the arc-shaped arch frame 201 to move; two second fixed seats 901 are fixedly connected to the second arch frame 205, and each of the two second fixed seats is equipped with a detection device 902, which is used to record data such as the length and curvature of the corrugated steel pipe segment 103 being installed; like Figure 2 As shown, each of the two first arch frames 204 is equipped with a moving device 207, which is movably connected to the first arch frame 204. Each moving device 207 has a built-in power source and can move independently on the first arch frame 204. A first connecting frame 208 is fixedly connected between the two moving devices 207. A first fixed base 301 is provided at the bottom of the first connecting frame 208, and a first hydraulic cylinder 302 is mounted on the first fixed base 301. A hydraulic station is provided on the working platform 102, and the first hydraulic cylinder 302 is connected to the hydraulic station via a hydraulic pipe. Installed on the first connecting frame 208, the telescopic end of the first hydraulic cylinder 302 faces away from the center, the fixed end of the first hydraulic cylinder 302 is fixedly connected to the first connecting frame 208, the telescopic end of the first hydraulic cylinder 302 is fixedly connected to the first connecting rod 303, the first arc-shaped block 304 is fixedly connected to the first connecting rod 303, the first arc-shaped block 304 is arc-shaped, a corrugated steel pipe sheet 103 is placed on the first arc-shaped block 304, the corrugated steel pipe sheet 103 can fit against the first arc-shaped block 304, and a clamping mechanism is provided on the first arc-shaped block 304 to fix the corrugated steel pipe sheet 103. During operation, the corrugated steel pipe section 103 is first clamped by the clamping mechanism and fixed on the first arc-shaped block 304. Then, the moving device 207 drives the corrugated steel pipe section 103 to move along the arc-shaped track of the first arch frame 204, while simultaneously driving the first connecting frame 208 and the first arc-shaped block 304 to move synchronously. When the designated position is reached, the first hydraulic cylinder 302 is activated, and the telescopic end of the first hydraulic cylinder 302 extends, driving the first connecting rod 303 and the first arc-shaped block 304 to move. The first arc-shaped block 304 drives the clamping mechanism and the corrugated steel pipe section 103 to move, smoothly lifting the corrugated steel pipe section 103 to the installation height.

[0022] like Figures 5 to 7 As shown, the clamping mechanism includes two telescopic components and two fixed components. The first arc-shaped block 304 is located between the two moving devices 207. The two fixed components are fixedly connected to the two telescopic components respectively. The two telescopic components are located at both ends of the first arc-shaped block 304. Two first cylinders 318 are arranged between the two fixed components and the first connecting rod 303. The telescopic end of the first cylinder 318 is hinged to the fixed component, and the fixed end of the first cylinder 318 is hinged to the first connecting rod 303. The telescopic assembly includes a second arc-shaped block 306 and a third arc-shaped block 311. A first fixing groove 305 is formed on the first arc-shaped block 304. The second arc-shaped block 306 is located within the first fixing groove 305. The second arc-shaped block 306 is provided with two first limiting blocks 308. Two first limiting grooves 307 are formed on the first arc-shaped block 304. The two first limiting grooves 307 are arc-shaped, and their arc shapes coincide with those of the first arc-shaped block 304. The two first limiting blocks 308 are slidably engaged in the two first limiting grooves 308 respectively. Within 7, the second arc-shaped block 306 moves within the first arc-shaped block 304, and slides along the length of the first arc-shaped block 304. Two cylinders 309 are provided at one end of the first fixing groove 305, and each cylinder 309 is located at one end of a first limiting groove 307. The cylinders 309 are rotatably connected to the first fixing groove 305. A first connecting groove 310 is provided on the cylinder 309, and the first connecting groove 310 communicates with the first limiting groove 307. The width of the cylinder 309 is the same as the width of the first limiting groove 307. The second arc-shaped block 306 is U-shaped, and the third arc-shaped block 311 is located inside the U-shaped opening of the second arc-shaped block 306. The frictional force of the third arc-shaped block 311 sliding on the second arc-shaped block 306 is less than the frictional force of the second arc-shaped block 306 sliding on the first arc-shaped block 304. As a result, when the telescopic component moves, the third arc-shaped block 311 moves first. The second arc-shaped block 306 will only extend after the third arc-shaped block 311 is fully extended. The second arc-shaped block 306 has two second limiting grooves 320, and the third arc-shaped block 311 is provided with two second limiting blocks 319. The two second limiting blocks 319 are slidably engaged in the two second limiting grooves 320 respectively. The sliding direction of the third arc-shaped block 311 is the same as the sliding direction of the second arc-shaped block 306. The fixed assembly includes a movable frame 312, which is hinged to the telescopic end of the first cylinder 318. The movable frame 312 is fixedly connected to the third arc-shaped block 311, perpendicular to the third arc-shaped block 311, and parallel to the rectangular piece 105. Two first movable blocks 313 are slidably mounted on the movable frame 312. The two first movable blocks 313 are located within the corrugations of the corrugated piece 104 and are in contact with the corrugated piece 104. Each of the three movable blocks is fitted with a first locking block 314. The two first locking blocks 314 are respectively fitted into the corresponding first fixing holes 107. A first fixing block 315 is fixedly connected to the first movable block 313. A screw 317 is threaded through the first fixing block 315. The screw 317 is threadedly connected to the first fixing block 315. One end of the screw 317 abuts against the movable frame 312. A nut 316 with a threaded connection is provided on the screw 317. The nut 316 contacts the first fixing block 315.

[0023] Two fixing rods 801 are fixedly connected to the mobile device 207. The fixing rods 801 are in contact with the bottom surface of the arc-shaped piece 106. The height of the rectangular piece 105 is higher than the height of the arc-shaped piece 106, so the fixing rods 801 can block the rectangular piece 105. A detachable second connecting plate 802 is provided on the two fixing rods 801. A pressure block 803 is fixedly connected to the top of the second connecting plate 802. The pressure block 803 is perpendicular to the second connecting plate 802. The bottom surface of the pressure block 803 is in contact with the top surface of the arc-shaped piece 106. A pressing surface 804 is provided on the pressure block 803.

[0024] When clamping a corrugated steel pipe segment 103, the second connecting plate 802 is not required. First, the first cylinder 318 is activated simultaneously. The telescopic end of the first cylinder 318 extends, driving the movable frame 312 to move. The movable frame 312 drives the third arc-shaped block 311 to move. Since the frictional force of the third arc-shaped block 311 sliding on the second arc-shaped block 306 is less than the frictional force of the second arc-shaped block 306 sliding on the first arc-shaped block 304, the third arc-shaped block 311 drives the second limiting block 319 to slide within the second limiting groove 320. At this time, the third arc block 311 extends, and the movement trajectory of the third arc block 311 coincides with the curvature of the second limiting groove 320. When the third arc block 311 extends to the limit position, the first cylinder 318 continues to extend. At this time, the third arc block 311 drives the second arc block 306 to move, and the second arc block 306 drives the first limiting block 308 to slide in the first limiting groove 307. Since the length of a corrugated steel pipe 103 is limited, the first limiting block 308 will not slide into the first connecting groove 310. When the first cylinder 318 extends, since the trajectory of the first locking block 314 is arc-shaped, the two ends of the first cylinder 318 will rotate around the first connecting rod 303 and the movable frame 312 respectively. While the movable frame 312 moves, it drives two other movable frames 312 to move in an arc shape. At the same time, the movable frame 312 is embedded in the corrugations of the corrugated sheet 104 and makes close contact with its surface, thereby ensuring that the first locking block 314 is aligned with the first fixing hole 107. If the initial position of the first locking block 314 is not aligned with the first fixing hole 107, when the movable frame 312 drives the first movable block 313 to move, the corrugations of the corrugated sheet 104 will apply a lateral force to the first movable block 313, causing the first movable block 313 to move laterally within the movable frame 312 until the first locking block 314 is aligned with the first fixing hole 107. Then, the first cylinder 318 continues to extend until the first locking block 314 is engaged in the first fixing hole 107. At this time, the two first cylinders 318 simultaneously apply an opposite force to the corrugated steel pipe 103, and the first movable block 313 is engaged in the first fixing hole 107, thereby achieving a firm clamping of the corrugated steel pipe 103.

[0025] When clamping two corrugated steel pipe segments 103, such as Figure 17As shown, at this time, the second connecting plate 802 is needed to ensure that the connection point of the two corrugated steel pipe sections 103 is located between the two fixed rods 801. Then, the telescopic ends of the two first cylinders 318 extend, driving the corresponding telescopic components and fixed components to move until the telescopic components are fully extended. At this time, the second limiting block 319 moves to one end of the second limiting groove 320, and the first limiting block 308 moves into the first connecting groove 310, separating the first limiting block 308 from the first limiting groove 307. When the first limiting block 308 is located at the connection point of the first limiting groove 307 and the first connecting groove 310, the first cylinder 318 drives the first locking block 314 to be locked into the corresponding first fixing hole 107. As cylinder 318 extends further, it moves corrugated steel tube 103, causing another rectangular piece 105 of corrugated steel tube 103 to contact the fixing rod 801. At this time, corrugated steel tube 103 is fixed by the fixing rod 801 and the first locking block 314. At this time, the first limiting block 308 also moves completely into the first connecting groove 310. Then, the second connecting plate 802 is installed on the fixing rod 801, so that the pressure block 803 contacts the two corrugated steel tubes 103. At this time, the pressure block 803 applies a downward pressure to the contact surface with the corrugated steel tube 103, thereby fixing the two corrugated steel tubes 103 on the first arc-shaped block 304, completing the clamping of the two corrugated steel tubes 103.

[0026] like Figures 11 to 14 As shown, a traction mechanism is provided on the corrugated steel pipe segment 103. A third fixing groove 618 is provided on the first arc-shaped block 304, and the traction mechanism is located in the third fixing groove 618. The traction mechanism is fixedly connected to the corrugated steel pipe segment 103 and is used to pull the two ends of the corrugated steel pipe segment 103 to shorten the chord length of the corrugated steel pipe segment 103. The traction mechanism includes several sets of connecting parts and a contraction assembly. The several sets of connecting parts are arranged parallel to each other and are horizontally distributed along the width direction of the corrugated steel pipe segment 103. The connecting parts include two ropes 604. There are no restrictions on the rope 604. The rope 604 is used as a medium for traction of the corrugated steel pipe segment 103. It is only necessary that the material of the rope 604 is sufficient to withstand the traction force. The rope 604 can be a steel cable, steel cable 609, etc. One end of each of the two ropes 604 is fixedly connected to both ends of the corrugated steel pipe segment 103. The two ropes 604 are located on the same chord of the corrugated steel pipe segment 103. The other ends of several ropes 604 are fixedly connected to the shrinking assembly. The shrinking section of the shrinking assembly is used to traction the rope 604 and shorten the chord length of the corrugated steel pipe segment 103. The retraction assembly includes a double-headed hydraulic cylinder 607, with a fourth connecting block 608 fixedly connected to each end of the cylinder. Two steel cables 609 are fixedly connected to the fourth connecting block 608, and a first fixing plate 610 is provided at the other end of each cable 609. A second fixing plate 611 is connected to the first fixing plate 610 by fastening bolts 612. The second fixing plate 611 is fitted onto the steel cable 609. The corrugated steel pipe section 103 includes a first connecting block 109, which is located between the first fixing plate 610 and the second fixing plate 611. The fastening bolts 612 fix the first fixing plate 610 and the second fixing plate 611 to the first connecting block 109. It also includes a fixing sleeve 601, on which two second connecting rods 602 are fixedly connected. The double-headed hydraulic cylinder 607 and the second connecting rods 602 are both oriented towards the width direction of the corrugated steel pipe sheet 103. Two first connecting plates 603 are fixedly connected between the two second connecting rods 602. The two first connecting plates 603 are located at both ends of the second connecting rods 602 respectively. The two first connecting plates 603 are in contact with the corrugated steel pipe sheet 103. The two second connecting rods 602 and the two first connecting plates 603 are stuck inside the corrugated steel pipe sheet 103. Two one-way moving elements are provided on the second connecting rods 602. The two one-way moving elements are respectively aligned with the two fourth connecting blocks 608. The unidirectional moving element includes two second movable blocks 613, which are slidably mounted on the two second connecting rods 602 along the length of the second connecting rods 602. A first connecting seat 413 is fixedly connected between the two second movable blocks 613. Two steel cables 609 are located between the two second movable blocks 613 and below the first connecting seat 413. An arc-shaped surface 614 is provided on the second movable block 613. The arc-shaped surface 614 can protect the steel cables 609. The two steel cables 609 are in contact with the two arc-shaped surfaces 614 respectively. A through hole 615 is provided on the second movable block 613. A locking pin 616 is slidably mounted in the through hole 615. The locking pin 616 is vertical. Several locking holes 617 are provided on the second connecting rods 602. The locking holes 617 are countersunk holes. The locking pin 616 is mounted in one of the locking holes 617. One side of the locking pin 616 is inclined. Two ropes 604 are connected to the first connecting plate 603. Both ropes 604 are fixedly connected to the arc plate 605. Two mating blocks 606 are fixedly connected to the arc plate 605. The two mating blocks 606 are snapped into the corresponding second fixing holes 108.

[0027] During installation, firstly, the mating block 606 is installed in the second fixing hole 108, so that the mating block 606 is snapped into the second fixing hole 108. At this time, the arc plate 605 is fixed on the corrugated steel pipe piece 103. Then, the two first connecting plates 603 are snapped between the two arc pieces 106. At this time, the two first connecting plates 603 are temporarily fixed in the corrugated steel pipe piece 103. Then, the worker moves the first fixing plate 610 and the second fixing plate 611 to the first connecting block 109, and the first fixing plate 610 and the second fixing plate 611 are then connected. The fixing plate 611 is moved to both sides of the first connecting block 109, and the second fixing plate 611 is fixed to the first fixing plate 610 by the fastening bolts 612, so that the first fixing plate 610 and the second fixing plate 611 clamp the first connecting block 109, thereby fixing one end of the steel cable 609 to the first connecting block 109, and fixing the steel cable 609 to the corrugated steel pipe 103. At this time, the traction mechanism is installed on the corrugated steel pipe 103. Then, the operator needs to ensure that the locking pin 616 is inserted into the locking hole 617 closest to the double-headed hydraulic cylinder 607.

[0028] When the traction mechanism is located in the third fixed groove 618, both the rope 604 and the steel cable 609 are in a slack state, and the steel cable 609 is arc-shaped. The double-headed hydraulic cylinder 607 is not connected to the hydraulic oil pipe at all times, but only when the double-headed hydraulic cylinder 607 needs to be used. Both the outlet and inlet ends of the double-headed hydraulic cylinder 607 are equipped with shut-off valves to prevent the hydraulic oil in the double-headed hydraulic cylinder 607 from leaking when it is not connected to the hydraulic oil pipe. During the operation, the worker first moves the second connecting rod 602 downward, separating the first connecting plate 603 from the corrugated steel pipe 103. At this time, the second connecting rod 602 and the first connecting plate 603 move downward due to gravity, making the rope 604 taut. At this time, the two ropes 604, the first connecting plate 603 and the arc plate 605 form a triangle, and the first connecting plate 603 is located on the chord of the corrugated steel pipe 103. The two ropes 604 suspend the first connecting plate 603 and the second connecting rod 602 in the air. Then, the worker connects the hydraulic oil pipe to the double-headed hydraulic cylinder 607. At this time, the other end of the hydraulic oil pipe is connected to the hydraulic oil station. When the second connecting rod 602 is suspended in the air, the steel cable 609 will become more relaxed, and the two ends of the steel cable 609 are at the same horizontal plane. Then, the double-headed hydraulic cylinder 607 is activated, and its two telescopic ends extend, driving the fourth connecting block 608 to move. The fourth connecting block 608 pushes the first connecting seat 413 and the two second movable blocks 613 to move. The second movable blocks 613 slide unidirectionally along the length of the second connecting rod 602. When the locking pin 616 moves to the position aligned with the locking hole 617, the locking pin 616 slides downward in the through hole 615. At this time, the locking pin 616 is engaged in the locking hole 617. The second movable block 613 continues to move forward, and the inclined surface of the locking pin 616 aligns with one of the locking holes 617. With the side engaged, the locking pin 616 slides vertically upward within the through hole 615, causing the locking pin 616 to separate from the locking hole 617. Therefore, when moving forward, the locking pin 616 moves vertically back and forth within the through hole 615. The inclined surface of the locking pin 616 has a wedge-shaped self-locking function, allowing the second movable block 613 to slide freely in the direction away from the double-headed hydraulic cylinder 607. However, it is blocked when moving in the opposite direction, and the second movable block 613 will not move. When the double-headed hydraulic cylinder 607 extends to the specified length, the first connecting seat 413 also moves to the specified position. At this time, the preparation work of the traction mechanism is completed. When the corrugated steel pipe segment 103 needs to be retracted, the double-headed hydraulic cylinder 607 is activated. The two telescopic ends of the double-headed hydraulic cylinder 607 retract, driving the fourth connecting block 608 and the corresponding two steel cables 609 to move, thus pulling the steel cables 609. When the corrugated steel pipe segment 103 moves to the initial position, the steel cables 609 are in a taut state. To more accurately know when the steel cables 609 begin to tighten, a force sensor is installed on the second movable block 613. When the steel cables 609 are taut... When the steel cable 609 applies a force to the curved surface 614, the force sensor will detect that it is under pressure. At this time, the steel cable 609 is taut. When the steel cable 609 is taut, it is divided into two parts by the second movable block 613. One part is located between the second movable block 613 and the first connecting block 109. This part of the steel cable 609 is perpendicular to the rectangular plate 105 and can provide the first connecting block 109 with a traction force perpendicular to the rectangular plate 105. The other part is located... Between the second movable block 613 and the fourth connecting block 608, the steel cable 609 in this part is parallel to the rectangular plate 105, so the two parts of the steel cable 609 are perpendicular to each other. Then, the double-headed hydraulic cylinder 607 continues to retract. The double-headed hydraulic cylinder 607 drives the corresponding two steel cables 609 to retract through the fourth connecting block 608. At this time, the double-headed hydraulic cylinder 607 applies a tension force to the steel cable 609. This tension force is a force horizontal to the rectangular plate 105. The steel cable 609 passes through the arc surface 614 and the rectangular plate. The horizontal force of 105 is converted into a force perpendicular to the rectangular plate 105. At this time, the steel cable 609 transmits the tension to the first connecting block 109 of the corrugated steel pipe 103, causing both ends of the pipe to retract inward along the chord length until they retract to the specified length. Then, the double-headed hydraulic cylinder 607 stops. At this time, the steel cable 609 will apply a force to the second movable block 613 toward the double-headed hydraulic cylinder 607. At this time, the locking pin 616 has a self-locking function, so the second movable block 613 will not move. With one end of the double-headed hydraulic cylinder 607 remaining stationary, when the arc-shaped surface 614 is initially in its position, it is located at one end of the steel cable 609. At this time, the steel cable 609 can be approximated as a straight line. When the arc-shaped surface 614 moves to the designated position, it changes the steel cable 609 into a broken line. Therefore, by changing the position of the arc-shaped surface 614, the steel cable 609 can be changed from a slack state to a taut state, thus playing a pre-tensioning role on the steel cable 609. When the steel cable 609 is taut, both ends of the double-headed hydraulic cylinder 607 apply a force to the corresponding steel cable 609. This force is directed towards the double-headed hydraulic cylinder 607, ensuring that the double-headed hydraulic cylinder 607 remains in a balanced state and does not tilt vertically, thus ensuring that the length of each moving steel cable 609 is equal. After the steel cable 609 passes the second movable block 613, this force becomes a force perpendicular to the rectangular plate 105. Since the connection between the first connecting plate 603 and the arc-shaped plate 605 is a soft contact, and the steel cable 609 is perpendicular to the rectangular plate 105... The force can form a reaction force, applying a force towards the rectangular piece 105 to the second movable block 613. The two second movable blocks 613 located on the same side are both subjected to a force towards the adjacent rectangular piece 105, and this force is sometimes the same. Therefore, the force between the second movable block 613 and the first connecting block 109 in the four steel cables 609 can form a balance, ensuring that the second connecting rod 602 will not rotate, thus forming a hard contact effect, so that the second connecting rod 602 is stably fixed under the corrugated steel pipe piece 103 by the balanced force in all directions.

[0029] like Figure 7 and Figure 8 As shown, a rotating mechanism is provided between the first connecting frame 208 and the first connecting rod 303, and the rotating mechanism is used to drive the first arc-shaped block 304 to rotate. The rotating mechanism includes a fixed sleeve 401, which is vertical. The fixed sleeve 401 is fixedly connected to the first connecting frame 208 through two first fixed frames 402. The first hydraulic cylinder 302 is located below the fixed sleeve 401. The first connecting rod 303 passes through the fixed sleeve 401 and moves vertically inside the fixed sleeve 401. Two mating components are provided between the first connecting frame 208 and the fixed sleeve 401. The mating assembly includes a slider 411 with an inclined top. A second fixing groove 409 is provided on the first connecting rod 303. The slider 411 is horizontally slidably fitted into the second fixing groove 409, with one end of the slider 411 located outside the second fixing groove 409. A spring 410 is provided inside the second fixing groove 409, with both ends of the spring 410 contacting the slider 411 and the bottom wall of the second fixing groove 409, respectively. The first fixed frame 402 has a mating groove, and the slider 411 is slidably engaged in the mating groove. The mating groove includes a first sliding groove 403, a second sliding groove 404, a third sliding groove 405, a fourth sliding groove 406, a fifth sliding groove 407, and a sixth sliding groove 408. The second sliding groove 404 and the fourth sliding groove 406 are both spiral-shaped with an angle of 90 degrees. The first sliding groove 403, the third sliding groove 405, the fifth sliding groove 407, and the sixth sliding groove 408 are all vertical. The first sliding groove 403 is located at the second sliding groove. Below 404, the first slide 403 is connected to the second slide 404, the third slide 405 is located above the second slide 404, and the second slide 404 is connected to the third slide 405, the fourth slide 406 is located above the third slide 405, the fifth slide 407 is located above the fourth slide 406, and the fourth slide 406 is connected to the fifth slide 407, and the sixth slide 408 is also located above the third slide 405, and the third slide 405 is connected to both the fourth slide 406 and the sixth slide 408.

[0030] The initial position of slider 411 is located in the first groove 403. Since the helix angles of the second groove 404 and the fourth groove 406 are both 90 degrees, the first groove 403 is vertically aligned with the fifth groove 407 of another set of mating grooves. During operation, the first connecting rod 303 is first moved vertically upward within the first slide groove 403. This movement is driven by the first hydraulic cylinder 302, which in turn moves the slider 411 upward. The slider 411 moves upward within the first slide groove 403. When the slider 411 reaches the connection point between the first slide groove 403 and the second slide groove 404, the inclined surface at the top of the slider 411 contacts the first slide groove 403. At this point, the first connecting rod 303 continues to move upward, pushing the slider 411 horizontally through its inclined surface, causing the slider 411 to move into the second fixed groove 404. Slide within the second fixed groove 409 until the slider 411 is fully moved into the second fixed groove 409. When the slider 411 moves, it compresses the spring 410, causing the spring 410 to contract. Then, the first connecting rod 303 continues to move upward until the slider 411 is aligned with the fifth slide groove 407. At this point, the spring 410 returns to its initial state, pushing the slider 411 out, thus moving the slider 411 into the fifth slide groove 407. Then, the first connecting rod 303 continues to extend, and the slider 411 slides within the fifth slide groove 407 until the first hydraulic cylinder 302 is fully extended. At this point, the corrugated steel pipe sheet 103 is also moved to the designated position. Then, the first hydraulic cylinder 302 is controlled to move vertically downwards. When the slider 411 moves within the fifth slide groove 407, it moves vertically downwards. When the slider 411 moves to the intersection of the fifth slide groove 407 and the fourth slide groove 406, the slider 411 moves along the trajectory of the fourth slide groove 406. At this time, under the forced constraint of the spiral guide surface, the vertical downward motion of the first connecting rod 303 is converted into spiral motion, thereby driving the first arc block 304 to rotate precisely 90 degrees around the vertical axis until the slider 411 moves to the fifth slide groove 406. After the three slide grooves 405 are in place, the first hydraulic cylinder 302 is stopped. At this time, the first arc block 304 is perpendicular to the arc arch frame 201. Then, the first arc block 304 is moved to the position where the corrugated steel pipe 103 to be installed is aligned. At this time, the corrugated steel pipe 103 can be placed with one of the arc pieces 106 in contact with the ground. At this time, the corrugated steel pipe 103 does not require the assistance of the staff and will not tip over. The staff only needs to place the corrugated steel pipe 103 in the designated position in advance. Then, the first hydraulic cylinder 302 is extended, and the first hydraulic cylinder 302 drives the slider 411 to move vertically. At this time, the slider 411 is located in the third slide groove 405, so the slider 411 will move to the sixth slide groove 408 until the first arc block 304 contacts the corrugated steel pipe sheet 103. Then, the corrugated steel pipe sheet 103 is fixed on the first arc block 304 by controlling the clamping mechanism. Then, control the first hydraulic cylinder 302 to retract, and the slider 411 moves from the sixth slide groove 408 to the third slide groove 405, and then to the second slide groove 404. When the slider 411 moves in the second slide groove 404, the slider 411 drives the first connecting rod 303 and the first arc block 304 to move in a spiral motion, so that the first arc block 304 rotates precisely 90 degrees around the vertical axis. At this time, the first arc block 304 rotates to the initial state. When the slider 411 moves into the first slide groove 403, the first arc block 304 returns to the initial state. When it is necessary to move the corrugated steel pipe piece 103 on the first arc block 304 to the installation position, the first connecting rod 303 can be moved upward.

[0031] By rotating the first arc-shaped block 304, the first arc-shaped block 304 can be actively moved to the corrugated steel pipe segment 103 to fix the corrugated steel pipe segment 103. Furthermore, by controlling the timing of not rotating when rising and rotating when falling, the posture stability during the installation process can be ensured, avoiding interference of the rotation action with the clamping force and affecting the positional accuracy of the installed corrugated steel pipe segment 103.

[0032] Two auxiliary rotation mechanisms are provided between the first arc-shaped block 304 and the moving device 207, and the two auxiliary rotation mechanisms are respectively located on the two moving devices 207. like Figure 9As shown, the auxiliary rotation mechanism includes an arc-shaped frame 415, which is arc-shaped. Both ends of the arc-shaped frame 415 are in contact with the moving device 207. A fourth limiting groove 416 is provided on the arc-shaped frame 415. The fourth limiting groove 416 is arc-shaped. Several fourth limiting blocks 417 are provided at the bottom of the first arc-shaped block 304. The fourth limiting blocks 417 can slide within the fourth limiting groove 416. A first connecting seat 413 is fixedly connected to the arc-shaped frame 415. The first connecting seat 413 is vertically slidably connected to the moving device 207. A third limiting block is provided on the first connecting seat 413. A third limiting groove 414 is provided on the moving device 207. The first connecting seat 413 is vertically slidably engaged in the third limiting groove 414. A rotating sleeve 428 is rotatably connected to the first connecting rod 303. A second connecting frame 412 is fixedly connected to the rotating sleeve 428. A second connecting seat 419 is fixedly connected to the second connecting frame 412. The second connecting seat 419 is vertical. Two clamping components are provided between the arc-shaped frame 415 and the second connecting seat 419. The clamping assembly includes a second fixing block 420, which is fixedly connected to a second connecting seat 419. A second connecting groove 421 is provided on the second fixing block 420. A support rod 418 is provided between the first connecting seat 413 and the arc frame 415. The support rod 418 is vertically aligned with the second connecting groove 421. A rectangular groove 422 is provided on the second fixing block 420. A rectangular block 423 is horizontally slidably connected in the rectangular groove 422. A third fixing block 424 is fixedly connected to the rectangular block 423. The third fixing block 424 is vertical. A fourth fixing block 425 is fixedly connected to the third fixing block 424. The fourth fixing block 425 is perpendicular to the third fixing block 424 and is aligned with the top of the second fixing block 420. A third connecting block 426 is fixedly connected between two second fixing blocks 420, and a crossbar is fixedly connected between two third fixing blocks 424. A second cylinder 427 is provided between the third connecting block 426 and the crossbar. The fixed end of the second cylinder 427 is fixedly connected to the third connecting block 426, and the telescopic end of the second cylinder 427 is fixedly connected to the crossbar.

[0033] During operation, when the first connecting rod 303 begins to rise vertically, it drives the second connecting seat 419 and the two clamping assemblies to move via the second connecting frame 412. After the slider 411 moves a certain distance within the first slide groove 403, the first connecting rod 303 drives the fourth limiting block 417 on the first arc-shaped block 304 to move to a position horizontally aligned with the fourth limiting groove 416. At this point, the support rod 418 is exactly located within the second connecting groove 421. The first hydraulic cylinder 302 is then stopped, and the clamping assemblies are activated to move the support rod 418. 8 is fixed in the second connecting groove 421, and then the first hydraulic cylinder 302 is started. The first connecting rod 303 continues to extend. At this time, the first connecting rod 303 drives the arc frame 415 to move upward through the second connecting frame 412 and the clamping assembly. The arc frame 415 drives the third limiting block on the first connecting seat 413 to slide in the third limiting groove 414 until the slider 411 moves to the connection of the first sliding groove 403 and the second sliding groove 404. At this time, the third limiting block separates from the third limiting groove 414, and the arc frame 415 is located above the moving device 207. When the first connecting rod 303 rotates, the first connecting rod 303 drives the fourth limiting block 417 to rotate through the first arc block 304. At the same time, the rotating sleeve 428 rotates relative to the first connecting rod 303. The rotating sleeve 428 only moves vertically on the first connecting rod 303 and does not rotate. Since the fourth limiting block 417 is horizontally aligned with the fourth limiting groove 416, the fourth limiting block 417 will rotate into the fourth limiting groove 416. At this time, the fourth limiting groove 416 and the fourth limiting block 417 cooperate, and the arc frame 415 supports the first arc block 304. In conjunction with the rotation of the rotating mechanism, it prevents the first arc block 304 from tilting due to changes in force during rotation. When the clamping assembly is running, the second cylinder 427 is activated. The extension end of the second cylinder 427 drives the crossbar to move horizontally. The crossbar drives the third fixing block 424 and the fourth fixing block 425 to move. At the same time, the rectangular block 423 slides in the rectangular groove 422 until the third fixing block 424 and the fourth fixing block 425 contact the support rod 418. At this time, the fourth fixing block 425 is located above the support rod 418. The third fixing block 424 and the fourth fixing block 425 fix the support rod 418 in the second connecting groove 421. At this time, the support rod 418 is fixedly connected to the second fixing block 420. When the slider 411 moves downward to the connection between the first slide groove 403 and the second slide groove 404, the fourth limiting block 417 separates from the fourth limiting groove 416. When the slider 411 moves downward to the designated position in the first slide groove 403, the clamping assembly can be released, allowing the support rod 418 to separate from the second connecting groove 421.

[0034] like Figure 15 and Figure 16As shown, the support mechanism is used to temporarily fix the corrugated steel pipe segment 103 to the inner wall of the tunnel body 101. The support mechanism includes a third connecting rod 704, on which a U-shaped block 711 is provided. The U-shaped block 711 is mounted on the third arch frame 206. A third fixing frame 705 is provided at the top of the third connecting rod 704. The third fixing frame 705 is located above the U-shaped block 711 and is U-shaped. Two third movable blocks 706 are slidably connected to the third fixing frame 705. The moving direction of the third movable blocks 706 is towards the corrugated steel pipe segment 103. A fourth connecting block is fixedly connected between the two third movable blocks 706. A fourth cylinder 708 is provided between the fourth connecting rod 707 and the third fixed frame 705. The fixed end of the fourth cylinder 708 is fixedly connected to the third fixed frame 705, and the telescopic end of the fourth cylinder 708 is fixedly connected to the fourth connecting rod 707. A first stop 709 and a second stop 710 are provided on the third movable block 706 near the corrugated steel pipe 103. The second stop 710 is locked onto the third movable block 706. The second stop 710 is magnetic. When the fourth cylinder 708 is started, it can ensure that the first stop 709 and the corrugated steel pipe 103 will not slide relative to each other, and at the same time, the second stop 710 will not cause other interference. Several support mechanisms are located on both sides of the second connecting block 203. The corrugated steel pipe sheet 103 includes two arc-shaped pieces 106. The second stop block 710 is located below the corrugated steel pipe sheet 103. The second stop block 710 in the support mechanism located in front of the corrugated steel pipe sheet 103 is closer to the fourth cylinder 708. The first stop block 709 in the support mechanism located behind the corrugated steel pipe sheet 103 is closer to the fourth cylinder 708. The second connecting seat 419 is provided with a telescopic rod 701. The telescopic rod 701 does not contain a power source. The function of the telescopic rod 701 is to connect the electromagnet 703 to the second connecting seat 419. The fixed end of the telescopic rod 701 is fixedly connected to the second connecting seat 419. The telescopic end of the second connecting seat 419 is provided with the electromagnet 703. The electromagnet 703 is aligned with the bottom end of the third connecting rod 704.

[0035] During operation, the moving device 207 is first activated, which moves the second connecting frame 412 to align the electromagnet 703 with the third connecting rod 704 horizontally. The initial position of the third connecting rod 704 is located in an adjacent horizontal plane. Then, by raising the height of the corrugated steel pipe 103, the arc-shaped piece 106 on the corrugated steel pipe 103 is aligned with the first stop 709 and the second stop 710. Then, the corrugated steel pipe 103 is lowered so that the arc-shaped piece 106 is locked between the first stop 709 and the second stop 710. At this time, the initial connection between the support mechanism and the corrugated steel pipe 103 is completed. At this time, both sides of the corrugated steel pipe 103 are connected to the support mechanism. When electromagnet 703 is activated, it attracts the third connecting rod 704, forming a single unit with the electromagnet 703. As the corrugated steel pipe 103 moves, it causes the U-shaped block 711 to slide on the third arch frame 206. When the corrugated steel pipe 103 moves to the alignment with the installation position, the fourth cylinder 708 is activated and retracts. Since the corrugated steel pipe 103 is fixed to the third movable block 706 at this time, the fourth cylinder 708 drives the third fixed frame 705 to move towards the corrugated steel pipe 103. The third fixed frame 705 drives the U-shaped block 711 to move through the third connecting rod 704 until the U-shaped block 711 separates from the third arch frame 206. Then, the corrugated steel pipe 103 is installed in the designated position by the first hydraulic cylinder 302. When the first hydraulic cylinder 302 extends, it drives the support mechanism to rise as a whole. At the same time, the U-shaped block 711 is aligned with the second arch frame 205. At this time, the fourth cylinder 708 is activated. The fourth cylinder 708 extends and drives the third fixed frame 705 to move away from the corrugated steel pipe 103 until the U-shaped block 711 is stuck in the second arch frame 205. At this time, the two support mechanisms can provide temporary support for the corrugated steel pipe 103. During the movement of the walking device 202, there will be unavoidable mechanical errors, which will cause gaps between the corrugated steel pipe pieces 103 on adjacent arc-shaped sections. When the clamping mechanism separates from the corrugated steel pipe piece 103, the fourth cylinder 708 located on the support mechanism in front of the arc-shaped section is activated. The fourth cylinder 708 extends and pushes the two third movable blocks 706 to move through the fourth connecting rod 707. The third movable blocks 706 drive the first stop block 709 to move. The first stop block 709 pushes the corrugated steel pipe piece 103, causing the corrugated steel pipe piece 103 to move toward the rear of the arc-shaped section, so that it contacts the corrugated steel pipe piece 103 on the adjacent set of support components.

[0036] The movable frame 312 is fixedly connected to a second fixed frame 510 at both ends. The second fixed frame 510 is equipped with a connecting mechanism, which is used to temporarily connect the two corrugated steel pipe sections 103. The connecting mechanism includes a second locking block 501. A second fixing frame 510 has a locking groove 511, and the second locking block 501 is locked in the locking groove 511. One end of the second locking block 501 is fixedly connected to a first support frame 502, and a first clamping block 503 is hinged to the first support frame 502. The first clamping block 503 is vertical and contacts the rectangular piece 105. The other end of the second locking block 501 has a second sliding groove 504, and the second sliding groove 504 slides horizontally within it. The moving clamp is equipped with a second support frame 505, and a second clamping block 506 is hinged on the second support frame 505. The second clamping block 506 is aligned with the first clamping block 503. A support base 508 is fixedly connected to the second clamping block 501. A third cylinder 509 is provided on the support base 508. The telescopic end of the third cylinder 509 faces the first clamping block 503. The telescopic end of the third cylinder 509 is fixedly connected to the second clamping block 506. The fixed end of the third cylinder 509 is fixedly connected to the support base 508. A tension spring 507 is connected between the second clamping block 506 and the first clamping block 503. The tension spring 507 is located between the first clamping block 503 and the second clamping block 506. The second clamping block 506 is inclined. The first clamping block 503 and the second clamping block 506 are in a figure-eight shape with the opening facing upward.

[0037] After the corrugated steel pipe 103 is fixed on the first arc-shaped block 304, the worker will install the second clamping block 501 on the slot 511 and ensure that the first clamping block 503 is in contact with the rectangular piece 105. At this time, since a tension spring 507 is provided between the second clamping block 506 and the first clamping block 503, the second clamping block 506 is inclined and the opening faces the corrugated steel pipe 103. When the corrugated steel pipe segment 103 is moved to the installation position, the rectangular segment 105 of the adjacent corrugated steel pipe segments 103 that has been temporarily fixed will move between the second clamping block 506 and the first clamping block 503. At this time, the third cylinder 509 is activated, and the telescopic end of the third cylinder 509 extends, driving the second support frame 505 to move within the second clamping block 501. The second support frame 505 drives the second clamping block 506 to move until the second clamping block 506 moves to fit with the corresponding rectangular segment 105. When the second clamping block 506 fits with the rectangular segment 105, the second clamping block 506 will rotate around the second support frame 505 to ensure that the second clamping block 506 and the corrugated steel pipe segment 103 can fit tightly together. At this time, the two rectangular segments 105 of the two adjacent corrugated steel pipe segments 103 are located between the first clamping block 503 and the second clamping block 506. Through the cooperation of the first clamping block 503 and the second clamping block 506, the two rectangular segments 105 are tightly connected together. Once the fixing is completed, the clamping mechanism releases the corrugated steel pipe 103 from the fixing mechanism. The clamping mechanism drives the first arc block 304 to move, causing the second locking block 501 to slide in the slot 511 until the second locking block 501 separates from the slot 511. At this time, the connecting mechanism separates from the second fixing frame 510.

[0038] Meanwhile, the rectangular pieces 105 and the arc-shaped pieces 106 on each corrugated steel pipe piece 103 are welded to the corrugated piece 104, so the actual size of each corrugated steel pipe piece 103 of the same model will also have slight differences. An installation method for a tunnel segment installation device. The corrugated steel pipe segments 103 installed on the left side of the tunnel's curved surface are called left-side corrugated steel pipe segments, and the corrugated steel pipe segments 103 installed on the right side of the tunnel's curved surface are called right-side corrugated steel pipe segments. The corrugated steel pipe segments located between the left-side and right-side corrugated steel pipe segments are called closure corrugated steel pipe segments, and the closure corrugated steel pipe segments include two corrugated steel pipe segments 103.

[0039] The installation method also includes the following steps: Example 1 Preparation on the left side: First, move the arched frame to the designated position. Then, horizontally stack the corrugated steel pipe segments on the left side along the radial direction of the tunnel body 101 on the right side to facilitate the subsequent clamping of the corrugated steel pipe segments 103, thus completing the stacking of the corrugated steel pipe segments 103. Plan Development: Workers need to conduct surveys, measuring the cross-section of each curved section and comparing it to the design cross-section. Based on the differences between the actual and design cross-sections, a strategy for the subsequent installation of the corrugated steel pipe segments 103 will be developed. When the actual cross section is smaller than the design cross section and the difference is greater than 2%, the remaining installation space is insufficient to install the remaining two corrugated steel pipe segments 103. If the corrugated steel pipe segments 103 are forcibly squeezed into the predetermined position, the corrugated steel pipe segments 103 will be in a high stress state, affecting the later support strength and causing premature yielding. Therefore, a traction mechanism is installed inside the corrugated steel pipe segments. Clamping steps: First, move the arc-shaped arch frame to the designated position. Then, activate the first hydraulic cylinder 302, extending it fully. At this time, the auxiliary rotating mechanism moves along with the extension of the first hydraulic cylinder 302. Then, the first hydraulic cylinder 302 retracts, positioning the slider 411 within the third sliding groove 405. At this point, the first arc-shaped block 304 rotates 90 degrees. The first arc-shaped block 304 then moves on the auxiliary rotating mechanism, which supports it. Finally, the moving device 207 controls the movement of the first arc-shaped block 304, driving the first arc-shaped... Block 304 moves to the position where the corrugated steel pipe sheet 103 is aligned, and then the first hydraulic cylinder 302 is activated. The first hydraulic cylinder 302 drives the first arc-shaped block 304 to move through the first connecting rod 303, so that the first arc-shaped block 304 is in contact with the corrugated steel pipe sheet 103. At this time, the traction mechanism is located in the third fixed groove 618. Then the moving device 207 is activated, and the moving device 207 drives the corrugated steel pipe sheet 103 to separate from the ground and then stops. Then the first hydraulic cylinder 302 is activated, and the first arc-shaped block 304 drives the corrugated steel pipe sheet 103 to separate from the adjacent corrugated steel pipe sheet 103 and then stops. Installation steps of the connecting mechanism: At this time, a certain space needs to be left around the corrugated steel pipe 103 to facilitate the installation of the connecting mechanism by the staff. The staff will then insert the second clamping block 501 into the clamping slot 511, while ensuring that the rectangular piece 105 is located between the first clamping block 503 and the second clamping block 506. The connecting mechanism is used to fix the two sets of rectangular pieces 105. Therefore, when installing the connecting mechanism, install it on the side of the rectangular piece 105 that needs to contact the adjacent corrugated steel pipe 103. Therefore, the connecting mechanism does not need to be installed when the corrugated steel pipe 103 is in contact with the ground or when the two corrugated steel pipe 103 are finally joined together. At this time, the installation of the connecting mechanism is completed. Moving steps: Continue moving the moving device 207 until it is aligned with the support mechanism. Simultaneously, the first hydraulic cylinder 302 retracts completely, restoring the first arc-shaped block 304 to its initial position. Once the moving device 207 is aligned with the electromagnet 703 and the third connecting rod 704, stop the moving device 207. Then, the operator activates the telescopic rod 701, retracting the fourth cylinder 708 to separate the U-shaped block 711 from the third arch frame 206, and then stops. Telescopic rod 701, then start moving device 207. Moving device 207 moves corrugated steel pipe 103 to below the installation position. When the worker moves to the installation position, he will pass through detection device 902. At this time, the first arc block 304 has moved to the initial position. Detection device 902 can calculate the arc length of corrugated steel pipe 103 by the moving speed of moving device 207 and the time it takes for corrugated steel pipe 103 to pass through detection device 902. At this time, detection device 902 records the arc length and angle of corrugated steel pipe 103. Installation steps: Start the first hydraulic cylinder 302, which drives the first arc-shaped block 304 and the corrugated steel pipe segment 103 to extend radially, holding the corrugated steel pipe segment 103 against the inner wall of the tunnel body 101. Then start the fourth cylinder 708, which drives the U-shaped block 711 to move horizontally, clamping the U-shaped block 711 onto the second arch frame 205. At this time, the support mechanism can support the corrugated steel pipe segment 103, and the clamping mechanism can be released from fixing the corrugated steel pipe segment 103. Then, the first hydraulic cylinder 302 drives the first arc-shaped block 304 to move downward. When the first arc-shaped block 304 moves downward, it will rotate. Just control the first arc-shaped block 304 to rotate 90 degrees. Repeat this process to install the next corrugated steel pipe segment 103. Operation steps of the connecting mechanism: When it is necessary to install the corrugated steel pipe piece 103 on the adjacent corrugated steel pipe piece 103, the operator needs to install the connecting mechanism on the second fixed frame 510. When the corrugated steel pipe piece 103 is installed on the adjacent corrugated steel pipe piece 103, the connecting mechanism is activated to fix the rectangular piece 105 that contacts the two sets of corrugated steel pipe pieces 103, thereby ensuring that the two corrugated steel pipe pieces 103 are fixed together. Right side preparation steps: Then the staff stacked the remaining corrugated steel pipe segments on the left side of the tunnel body 101, and first installed the corrugated steel pipe segments on the right side until there were still corrugated steel pipe segments left to close. At this time, the closing position is located at the top of the tunnel body 101. Closure clamping steps: When installing the closure corrugated steel pipe segments, the two corrugated steel pipe segments 103 are simultaneously fixed on the first arc-shaped block 304. At this time, no traction mechanism needs to be installed inside the two corrugated steel pipe segments 103. The support mechanism is located at the connection of the two corrugated steel pipe segments 103. The fourth cylinder 708 is aligned with the rectangular piece 105. The two third movable blocks 706 on the support mechanism are in contact with the two corrugated steel pipe segments 103 respectively. When the moving device 207 moves the first arc-shaped block 304 and the two corrugated steel pipe segments 103 to the designated position, the two corrugated steel pipe segments 103 are aligned with the area to be installed. Traction Steps: The operator connects the hydraulic hose to the traction mechanism and starts the mechanism, shortening the arc length of each corrugated steel pipe segment 103. The remaining installation space gradually increases. The length of arc shortening by the traction mechanism is related to the arc length of the corrugated steel pipe segment 103 itself. Calculations are made based on the arc length measured by the detection device 902. Corrugated steel pipe segments 103 with longer arc lengths shorten by a greater amount, and vice versa. It is only necessary to ensure that each corrugated steel pipe segment 103 experiences equal traction force. At this point, the traction mechanism applies an internal stress to the corrugated steel pipe segment 103, completing the traction. The traction mechanism applies internal stress to all corrugated steel pipe segments 103, thus distributing the deformation stress among them. This prevents any single corrugated steel pipe segment 103 from experiencing excessive deformation and prematurely entering the yielding stage, thereby ensuring the safety of the entire structure.

[0040] Closure Installation Steps: Move the two corrugated steel pipe sections 103 to the designated installation position. Activate the two first cylinders 318. The telescopic ends of the first cylinders 318 extend, causing the third arc-shaped block 311 and the second arc-shaped block 306 to extend to their limits. Therefore, the second arc-shaped block 306 and the third arc-shaped block 311 are now integrated. The first cylinder 318 rotates the second arc-shaped block 306 and the third arc-shaped block 311, and the first cylinder 318 itself also rotates. The first limiting block 308 on the second arc-shaped block 306, through its engagement with the first connecting groove 310, drives the cylinder 309 to rotate. At this point, the second arc-shaped block 306 and the third arc-shaped block 311 rotate around the cylinder 309. The two ends of the first cylinder 318 then... The cylinder 318 rotates around the third arc-shaped block 311 and the first connecting rod 303. At this time, the movement trajectory of the first limiting groove 307 and the third arc-shaped block 311 is centered on the cylinder 309, with the hinge point between the cylinder 309 and the first cylinder 318 and the third arc-shaped block 311 as the radius. The movement trajectory of the first cylinder 318 is centered on the hinge point between the first cylinder 318 and the first connecting rod 303, with the hinge point between the first cylinder 318 and the third arc-shaped block 311 as the radius. Therefore, when the first cylinder 318 extends, it can drive the third arc-shaped block 311 and the second arc-shaped block 306 to rotate upwards around the cylinder 309. After the first cylinder 318 has fully extended, the third arc-shaped block 311 and the second arc-shaped block 306 tilt upwards. This movement causes two corrugated steel pipe sections 103 to rotate around their corresponding fixed rods 801, forming a V-shape. As they rotate around the fixed rods 801, the corrugated steel pipe sections 103 come into contact with the pressure block 803. As the angle between the two corrugated steel pipe sections 103 decreases, they engage with the pressing surface 804. This pressing surface 804 causes the pressure block 803 and the second connecting plate 802 to move away from the corrugated steel pipe section 103 until the second connecting plate 802 separates from the fixed rod 801. At this point, the pressure block 803 will not interfere with subsequent installation. The rectangular sections 105 on the two corrugated steel pipe sections 103 that are further apart are now aligned. The distance between them is less than the remaining installation space, so when the first hydraulic cylinder 302 extends upwards, it drives the rectangular pieces 105 at the highest point of the two corrugated steel pipe sections 103 to move smoothly into the installation space without obstruction. After the corrugated steel pipe section 103 contacts the inner wall of the tunnel body 101, the first hydraulic cylinder 302 continues to extend, and at this time, the first air cylinder 318 slowly retracts, causing one end of the corrugated steel pipe section 103 to move closer to the adjacent corrugated steel pipe section 103. After the corrugated steel pipe section 103 contacts the adjacent corrugated steel pipe section 103, the point of contact with the adjacent corrugated steel pipe section 103 remains stationary, and the connection between the two corrugated steel pipe sections 103 continues to move upwards. At this time, the two corrugated steel pipe sections 103 slowly change from a V-shaped posture to an installation posture.The angle between the two corrugated steel pipe segments 103 gradually increases, causing them to press against each other and adjacent segments until the first hydraulic cylinder 302 is fully extended. At this point, the two corrugated steel pipe segments 103 are installed in their designated positions. While under slight pressure, the pressure is distributed among the last two segments installed simultaneously. This completes the installation of all corrugated steel pipe segments 103 on the curved cross-section. Subsequent fixing work continues until all segments are secured.

[0041] Fixing steps: Then fix several corrugated steel pipe segments on the support component with bolts to form a whole. At the same time, fix two adjacent support components with bolts to form a whole. Support the tunnel body 101, remove the traction mechanism, connecting mechanism and support mechanism, and then move the arc-shaped arch frame to the next installation position to install the corrugated steel pipe segments.

[0042] Example 2 The difference from Example 1 is: Solution: When the actual cross-section is greater than or equal to the design cross-section, there is no need to install a traction mechanism inside the corrugated steel pipe segment.

[0043] Closure Installation Steps: First, the worker removes one of the second connecting plates 802 that interferes with the already installed corrugated steel pipe segments 103. Then, the first hydraulic cylinder 302 is activated, moving both corrugated steel pipe segments 103 upwards until they are installed into the remaining installation space. Next, the clamping mechanism is released from fixing the two corrugated steel pipe segments 103, but the first hydraulic cylinder 302 does not retract. Then, the support mechanism is used to adjust the two corrugated steel pipe segments 103, bringing them into contact with the adjacent, already installed corrugated steel pipe segments 103. Finally, the worker uses bolts or other methods to secure the last corrugated steel pipe segment 103. Two corrugated steel pipe sections 103 are fixed, and simultaneously fixed to adjacent corrugated steel pipe sections 103. After the last two corrugated steel pipe sections 103 are fixed, the support mechanism can be released from fixing the corrugated steel pipe sections 103. At the same time, the first hydraulic cylinder 302 is retracted, causing the first arc-shaped block 304 to separate from the corrugated steel pipe section 103. Then, the workers fix several corrugated steel pipe sections 103 in sequence, while removing the support mechanism and connecting mechanism opposite to them. After all the corrugated steel pipe sections 103 are fixed, the workers can move the arc-shaped arch frame 201 to the next arc-shaped section through the walking device 202.

[0044] There is no traction step, and the preparation work on the left side, the clamping step, the connecting mechanism installation step, the moving step, the installation step, the connecting mechanism operation step, the preparation step on the right side, the closing clamping step, and the fixing step are all the same as in Embodiment 1.

[0045] Example 3 The difference from Example 1 is: Solution: When the actual cross section is smaller than the design cross section, and the difference is less than or equal to 2%, the corrugated steel pipe segment 103 will not be in a high stress state after being forcibly squeezed into the predetermined position. This will not affect the subsequent support, and the segment will not enter the yielding stage too early. There is no need to install a traction mechanism inside the corrugated steel pipe segment.

[0046] There is no traction step, and the preparation work on the left side, the clamping step, the connecting mechanism installation step, the moving step, the installation step, the connecting mechanism operation step, the preparation step on the right side, the closure clamping step, the fixing step, and the closure installation step are all the same as in Example 1.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A tunnel segment installation device, characterized in that, Including arched frames, A first connecting frame is slidably connected to the arc-shaped arch frame, and the first connecting frame moves along the arc-shaped arch frame. A first arc-shaped block is mounted on the first connecting frame. The first arc-shaped block can move radially along the center of the first connecting frame, forming an arc shape. A corrugated steel pipe sheet is placed on the first arc-shaped block, and the corrugated steel pipe sheet is in contact with the first arc-shaped block. A clamping mechanism is located on the first arc-shaped block, and the clamping mechanism is used to fix the corrugated steel pipe sheet; Several traction mechanisms are fixedly connected to the corrugated steel pipe segments. These traction mechanisms are used to pull the two ends of the corrugated steel pipe segments, shortening the chord length of the corrugated steel pipe segments. The traction mechanism includes several sets of connecting components and a retraction assembly. The connecting components are arranged parallel to each other and are horizontally distributed along the width of the corrugated steel pipe segment. Each connecting component includes two ropes, one end of which is fixedly connected to both ends of the corrugated steel pipe segment. The two ropes are collinear and parallel to the chord of the corrugated steel pipe segment. The other ends of the ropes are fixedly connected to the retraction assembly. The retraction section of the retraction assembly is used to pull the ropes and shorten the chord length of the corrugated steel pipe segment.

2. The tunnel segment installation device according to claim 1, characterized in that: The first arc-shaped block has a third fixing groove, the corrugated steel pipe includes a plurality of second fixing holes, and the traction mechanism is located in the third fixing groove; The retraction assembly includes a double-headed hydraulic cylinder, with a fourth connecting block fixedly connected to each end of the cylinder. Several ropes are fixedly connected to the fourth connecting blocks, and a first fixing plate is provided at the other end of each rope. A second fixing plate is connected to the first fixing plate by fastening bolts. The second fixing plate is fitted onto the steel cable. The corrugated steel pipe includes a first connecting block located between the first and second fixing plates. The fastening bolts fix the first and second fixing plates to the first connecting block. The traction mechanism also includes a fixed sleeve, on which two second connecting rods are fixedly connected. The double-headed hydraulic cylinder and the second connecting rods are both oriented towards the width direction of the corrugated steel pipe segment. Two first connecting plates are fixedly connected between the two second connecting rods. The two first connecting plates are respectively located at both ends of the second connecting rods and are in contact with the corrugated steel pipe segment. The two second connecting rods and the two first connecting plates are locked inside the corrugated steel pipe segment. Two one-way moving elements are provided on the second connecting rods, and the two one-way moving elements are respectively aligned with the two fourth connecting blocks. The unidirectional moving element includes two second movable blocks, which are slidably mounted on the two second connecting rods along the length of the second connecting rods. A connecting block is fixedly connected between the two second movable blocks. The two steel cables are located between the two second movable blocks and below the connecting block. The second movable blocks are provided with arc-shaped surfaces, and the two steel cables are in contact with the two arc-shaped surfaces respectively. The second movable blocks are provided with through holes, and a locking pin is slidably mounted in the through holes. The locking pin is vertical. The second connecting rods are provided with several locking holes, which are countersunk holes. The locking pin is mounted in one of the locking holes, and one side of the locking pin is inclined. Two ropes are connected to the first connecting plate, and both ropes are fixedly connected to the arc-shaped plate. Two mating blocks are fixedly connected to the arc-shaped plate, and the two mating blocks are engaged in the corresponding second fixing holes.

3. A tunnel segment installation device according to claim 2, characterized in that: The arc-shaped arch frame includes two first arch frames, each of which is slidably fitted with a moving device. The moving device moves on the first arch frame. The first connecting frame is fixedly connected to the two moving devices and is located between the two moving devices. The clamping mechanism includes two telescopic components and two fixed components. The first arc-shaped block is located between the two moving devices. The two fixed components are respectively fixedly connected to the two telescopic components. The two telescopic components are located at both ends of the first arc-shaped block. The telescopic component includes a second arc-shaped block and a third arc-shaped block. A first fixing groove is formed on the first arc-shaped block, and the second arc-shaped block is located within the first fixing groove. The second arc-shaped block is provided with two first limiting blocks, and two first limiting grooves are formed on the first arc-shaped block. The two first limiting grooves coincide with the arc shape of the first arc-shaped block, and the two first limiting blocks are slidably engaged within the two first limiting grooves. The second arc-shaped block moves within the first arc-shaped block and slides along the length direction of the first arc-shaped block. Two cylinders are provided at one end of the first fixing groove. The two cylinders are respectively located at one end of the two first limiting grooves. The cylinders are rotatably connected to the first fixing groove. A first connecting groove is formed on the cylinder, which communicates with the first limiting groove. The width of the cylinder is the same as the width of the first limiting groove. The second arc-shaped block is U-shaped, and the third arc-shaped block is located inside the U-shaped opening of the second arc-shaped block. The second arc-shaped block has two second limiting grooves, and the third arc-shaped block is provided with two second limiting blocks. The two second limiting blocks are slidably engaged in the two second limiting grooves respectively, and the sliding direction of the third arc-shaped block is the same as the sliding direction of the second arc-shaped block.

4. A tunnel segment installation device according to claim 3, characterized in that: The corrugated steel pipe sheet also includes a corrugated sheet and two rectangular sheets. The two rectangular sheets are fixedly connected to both ends of the corrugated sheet, and each of the two rectangular sheets is provided with a number of first fixing holes. The fixing component includes a movable frame, which is fixedly connected to the third arc-shaped block. The movable frame is perpendicular to the third arc-shaped block and parallel to the rectangular piece. Two first movable blocks are slidably mounted on the movable frame. The two first movable blocks are located within the corrugations of the corrugated sheet and are in contact with the corrugated sheet. Each of the two first movable blocks is fitted with a first locking block, and the two first locking blocks are respectively fitted into the corresponding first fixing holes. A first fixed block is fixedly connected to the first movable block, a screw is threaded through the first fixed block, the screw is threadedly connected to the first fixed block, one end of the screw abuts against the movable frame, and a threaded nut is provided on the screw, the nut is in contact with the first fixed block; The first connecting frame has a first fixed seat at its bottom end, and a first hydraulic cylinder is mounted on the first fixed seat. The telescopic end of the first hydraulic cylinder faces away from the center of the circle, and the fixed end of the first hydraulic cylinder is fixedly connected to the first fixed seat. The first arc-shaped block has a first connecting rod at its bottom end, and the telescopic end of the first hydraulic cylinder is fixedly connected to the first connecting rod. Two first cylinders are arranged between the two movable frames and the first connecting rod. The telescopic end of the first cylinder is hinged to the movable frame, and the fixed end of the first cylinder is hinged to the first connecting rod.

5. A tunnel segment installation device according to claim 4, characterized in that: A rotating mechanism is provided between the first connecting frame and the first connecting rod, and the rotating mechanism is used to drive the first arc-shaped block to rotate. The rotating mechanism includes a fixed sleeve, which is vertical. The fixed sleeve is fixedly connected to the first connecting frame through two first fixed frames. The first hydraulic cylinder is located below the fixed sleeve. The first connecting rod passes through the fixed sleeve and moves vertically inside the fixed sleeve. Two mating components are provided between the first connecting frame and the fixed sleeve. The mating assembly includes a slider with an inclined top. A second fixing groove is provided on the first connecting rod. The slider is horizontally slidably fitted into the second fixing groove, with one end of the slider located outside the second fixing groove. A spring is provided inside the second fixing groove, with both ends of the spring contacting the slider and the bottom wall of the second fixing groove, respectively. The first fixing frame has a mating groove, and the slider is slidably engaged in the mating groove. The mating groove includes a first sliding groove, a second sliding groove, a third sliding groove, a fourth sliding groove, a fifth sliding groove, and a sixth sliding groove. The second sliding groove and the fourth sliding groove are both spiral-shaped with an angle of 90 degrees. The first sliding groove, the third sliding groove, the fifth sliding groove, and the sixth sliding groove are all vertical. The first sliding groove is located below the second sliding groove and is connected to the second sliding groove. The third sliding groove is located above the second sliding groove and is connected to the second sliding groove. The fourth sliding groove is located above the third sliding groove, and the fifth sliding groove is located above the fourth sliding groove and is connected to the fifth sliding groove. The sixth sliding groove is also located above the third sliding groove and is connected to both the fourth and sixth sliding grooves.

6. A tunnel segment installation device according to claim 5, characterized in that: Two auxiliary rotation mechanisms are provided between the first arc-shaped block and the moving device, and the two auxiliary rotation mechanisms are respectively located on the two moving devices; The auxiliary rotating mechanism includes an arc-shaped frame. The arc-shaped frame has two ends that contact the moving device. A fourth limiting groove, also arc-shaped, is formed on the arc-shaped frame. Several fourth limiting blocks are provided at the bottom of the first arc-shaped block. These fourth limiting blocks can slide within the fourth limiting groove. A connecting block is fixedly connected to the arc-shaped frame. The connecting block is vertically slidably connected to the moving device. A third limiting block is provided on the connecting block. A third limiting groove is formed on the moving device, and the connecting block is vertically slidably engaged in the third limiting groove. A rotating sleeve is rotatably connected to the first connecting rod, a second connecting frame is fixedly connected to the rotating sleeve, a connecting seat is fixedly connected to the second connecting frame, the connecting seat is vertical, and two clamping components are provided between the arc-shaped frame and the connecting seat. The clamping assembly includes a second fixing block, which is fixedly connected to the connecting seat. The second fixing block has a second connecting groove. A support rod is provided between the connecting block and the arc frame. The support rod is vertically aligned with the second connecting groove. The second fixing block has a rectangular groove. A rectangular block is horizontally slidably connected in the rectangular groove. A third fixing block is fixedly connected to the rectangular block. The third fixing block is vertical. A fourth fixing block is fixedly connected to the third fixing block. The fourth fixing block is perpendicular to the third fixing block and aligned with the top of the second fixing block. A third connecting block is fixedly connected between the two second fixing blocks, and a crossbar is fixedly connected between the two third fixing blocks. A second cylinder is provided between the third connecting block and the crossbar. The fixed end of the second cylinder is fixedly connected to the third connecting block, and the telescopic end of the second cylinder is fixedly connected to the crossbar.

7. A tunnel segment installation device according to claim 6, characterized in that: The arc-shaped arch frame also includes two second connecting blocks, two second arch frames, and two third arch frames. The length direction of the second connecting blocks is parallel to the length direction of the tunnel. The two second connecting blocks are located on both sides of the tunnel. The two ends of the first arch frame, the second arch frame, and the third arch frame are fixedly connected to the two second connecting blocks. One of the two second arch frames and the two third arch frames is fixedly connected to the two ends of the second connecting block. The two first arch frames are fixedly connected to the middle section of the second connecting block. The two third arch frames are located between the two second arch frames, and the two first arch frames are located between the two third arch frames; The radius of the third arch is smaller than the radius of the second arch, and the radius of the first arch is equal to the radius of the second arch. Both of the two second connecting blocks are equipped with a walking device; The corrugated steel pipe segment is provided with a support mechanism, which is used to temporarily fix the corrugated steel pipe segment to the inner wall of the tunnel. The support mechanism includes a third connecting rod, on which a U-shaped block is mounted. The U-shaped block is U-shaped and mounted on the third arch frame. A third fixed frame is mounted at the top of the third connecting rod, located above the U-shaped block. The third fixed frame is U-shaped and has two third movable blocks slidably connected to it. The moving direction of the third movable blocks is towards the corrugated steel pipe. A fourth connecting rod is fixedly connected between the two third movable blocks. A fourth cylinder is mounted between the fourth connecting rod and the third fixed frame. The fixed end of the fourth cylinder is fixedly connected to the third fixed frame, and the telescopic end of the fourth cylinder is fixedly connected to the fourth connecting rod. A first stop and a second stop are mounted on the third movable block near the corrugated steel pipe. The second stop is magnetic. Several of the aforementioned support mechanisms are located on both sides of the second connecting block. The corrugated steel pipe sheet includes two arc-shaped pieces. The second stop is located below the corrugated steel pipe sheet. The second stop in the support mechanism located in front of the corrugated steel pipe sheet is closer to the fourth cylinder, and the first stop in the support mechanism located behind the corrugated steel pipe sheet is closer to the fourth cylinder. The connecting seat is provided with a telescopic rod, the fixed end of the telescopic rod is fixedly connected to the connecting seat, and the telescopic end of the connecting seat is provided with an electromagnet, which is aligned with the bottom end of the third connecting rod.

8. A tunnel segment installation device according to claim 7, characterized in that: Both ends of the movable frame are fixedly connected to a second fixed frame, and the second fixed frame is provided with a connecting mechanism for temporarily connecting two corrugated steel pipe sections. The connecting mechanism includes a second locking block. A second fixing frame has a locking groove, and the second locking block is engaged in the locking groove. One end of the second locking block is fixedly connected to a first support frame. A first clamping block is hinged to the first support frame. The first clamping block is vertical and contacts the rectangular piece. The other end of the second locking block has a second sliding groove, in which the second support frame is horizontally slidably engaged. The second support frame has a second clamping block hinged to it, and the second clamping block is aligned with the first clamping block. A support base is fixedly connected to the second locking block. A third cylinder is mounted on the support base. The telescopic end of the third cylinder faces the first clamping block and is fixedly connected to the second clamping block. The fixed end of the third cylinder is fixedly connected to the support base. A tension spring is connected between the second clamping block and the first clamping block. The tension spring is located between the first clamping block and the second clamping block. The second clamping block is inclined. The first clamping block and the second clamping block are in a figure-eight shape with the opening facing upward.

9. A tunnel segment installation device according to claim 8, characterized in that: Two fixed rods are fixedly connected to the mobile device. The fixed rods are in contact with the bottom surface of the arc-shaped piece. The height of the rectangular piece is higher than the height of the arc-shaped piece, so the fixed rods can block the rectangular piece. The two fixed rods are provided with detachable second connecting plates. A pressure block is fixedly connected to the top of the second connecting plate. The pressure block is perpendicular to the second connecting plate. The bottom surface of the pressure block contacts the top surface of the arc-shaped piece. The pressure block is provided with a pressing surface.

10. A method for installing a tunnel segment installation device, based on the tunnel segment installation device according to any one of claims 1-9, characterized in that, The corrugated steel pipe segments installed on the left side of the tunnel's curved surface are called left-side corrugated steel pipe segments, and the corrugated steel pipe segments installed on the right side of the tunnel's curved surface are called right-side corrugated steel pipe segments. The corrugated steel pipe segments located between the left-side and right-side corrugated steel pipe segments are called closure corrugated steel pipe segments, and the closure corrugated steel pipe segments include two corrugated steel pipe segments. The installation method includes the following steps: Preparation on the left side: First, move the arched frame to the designated position. Then, the staff need to stack the corrugated steel pipe segments on the right side of the tunnel to complete the stacking of the corrugated steel pipe segments. At the same time, the staff need to conduct a survey and compare the actual cross-section with the design cross-section. Based on the difference between the actual cross-section and the design cross-section, a strategy for the subsequent installation of corrugated steel pipe segments will be formulated. Solution: When the actual cross-section is smaller than the design cross-section by more than 2%, install a traction mechanism inside the corrugated steel pipe segment; Clamping steps: Then, start the first hydraulic cylinder, first fully extend the first hydraulic cylinder, then retract the first hydraulic cylinder, so that the slider moves into the third slide groove. At this time, the first arc block rotates 90 degrees. Then, control the movement of the first arc block through the moving device, move the first arc block to the position where the corrugated steel pipe sheet is aligned, then start the first hydraulic cylinder to extend, so that the first arc block fits with the corrugated steel pipe sheet. At this time, the traction mechanism is located in the third fixed groove. Then, start the clamping mechanism, and fix the corrugated steel pipe sheet on the first arc block through the clamping mechanism. When there is an already installed corrugated steel pipe sheet next to the corrugated steel pipe sheet to be installed, the operator needs to install the connecting mechanism on the second fixed frame. At this time, the rectangular piece is located between the first clamping block and the second clamping block. Moving steps: Start the moving device and move it to align with the support mechanism. At the same time, fully retract the first hydraulic cylinder to move the first arc block to the initial position. Stop the moving device when it is aligned with the electromagnet and the third connecting rod. Then fix the support mechanism on the moving device and control the U-shaped block to separate from the third arch frame. Start the moving device again to move the corrugated steel pipe segment to the installation position. At this time, the corrugated steel pipe segment passes through the detection device, which records various data of the corrugated steel pipe segment. Installation steps: Activate the first hydraulic cylinder, which drives the first arc-shaped block and corrugated steel pipe segment to extend radially, holding the corrugated steel pipe segment against the tunnel inner wall. The support mechanism moves with the corrugated steel pipe segment. Then, the U-shaped block is clamped onto the second arch frame. At this time, the support mechanism supports the corrugated steel pipe segment. Simultaneously, the connecting mechanism is activated to fix the rectangular pieces of the two sets of corrugated steel pipe segments that are in contact, thus ensuring the fixation between the two corrugated steel pipe segments and completing the installation of one of the corrugated steel pipe segments. Then release the clamping mechanism from fixing the corrugated steel pipe segment, and then start the first hydraulic cylinder to retract. At this time, the first arc block will rotate. After the first arc block rotates 90 degrees, it stops. Repeat the clamping step, moving step and installation step to complete the temporary fixing of the left corrugated steel pipe segment. Right-side installation steps: Workers stack the remaining corrugated steel pipe segments on the left side of the tunnel and repeat the clamping, moving, and installation steps to temporarily fix the right-side corrugated steel pipe segments. Closure clamping steps: For simultaneous installation of the closure corrugated steel pipe segments, firstly, fix the two corrugated steel pipe segments on the first arc block, and simultaneously install the second connecting plate on the fixed rod. Then, start the moving device to move the two corrugated steel pipe segments below the installation position. Then, start the two first cylinders to extend, driving the second and third arc blocks to rotate around the cylinder, while simultaneously moving the two corrugated steel pipe segments. At this time, the two corrugated steel pipe segments are in a V shape. When the corrugated steel pipe segments rotate around the fixed rod, they will contact the pressure block. As the included angle between the two corrugated steel pipe segments decreases, the corrugated steel pipe segments squeeze the pressing surface, causing the pressure block and the second connecting plate to move away from the corrugated steel pipe segments until the second connecting plate separates from the fixed rod. Traction Steps: Activate the traction mechanism to shorten the arc length of each corrugated steel pipe segment. By shortening the arc length of each corrugated steel pipe segment, an internal stress is applied to the corrugated steel pipe segment through the traction mechanism. At this time, the remaining installation space will slowly increase. The length by which the traction mechanism shortens the arc length is related to the arc length of the corrugated steel pipe segment itself. The calculation is based on the arc length measured by the detection device. The longer the arc length of the corrugated steel pipe segment, the longer the shortening length, and the shorter the arc length of the corrugated steel pipe segment, the shorter the shortening length. At this time, the remaining installation space will slowly increase until the remaining installation space expands to the specified space and then stops. Closure Installation Steps: The first hydraulic cylinder extends upwards, allowing the two rectangular corrugated steel pipe segments at their highest points to move smoothly into the installation space without obstruction. After the corrugated steel pipe segments contact the tunnel wall, the first hydraulic cylinder continues to extend. At this time, the first air cylinder slowly retracts, increasing the angle of the V-shape. When the corrugated steel pipe segment contacts the adjacent corrugated steel pipe segment, the contact point remains stationary. The connection point of the two corrugated steel pipe segments continues to move upwards, gradually changing from a V-shape to an installation posture. The two corrugated steel pipe segments then press against each other, simultaneously pressing against adjacent corrugated steel pipe segments until the first hydraulic cylinder is fully extended. At this point, the two corrugated steel pipe segments are installed in the designated position, completing the installation of all corrugated steel pipe segments on the arc-shaped cross-section. At this time, all corrugated steel pipe segments are subjected to the same internal stress, and the deformation stress is shared among them. Fixing steps: Then fix the corrugated steel pipe segments to the adjacent corrugated steel pipe segments with bolts, so that the left corrugated steel pipe segments, the right corrugated steel pipe segments, and the closing corrugated steel pipe segments are connected into a whole.

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