A shield segment with a connecting device and a method for assembling the shield segment

Abstract

The present application relates to shield segment installation technical field, especially a kind of shield segment with connecting device and the assembling method of the shield segment, to solve the simple connection mode of existing shield segment, cannot improve the multi-directional connection strength of shield segment.It includes: a plurality of segment bodies, segment body is arc structure;First connecting assembly, first connecting assembly is set on the two end faces of segment body circumferential direction;Second connecting assembly, second connecting assembly is set on the two end faces of segment body axial direction;Wherein, segment body is mutually assembled to form pipeline along circumferential direction through first connecting assembly, a plurality of pipelines are mutually assembled to form tunnel along the axial direction of segment body through second connecting assembly.By first connecting assembly and second connecting assembly, it is installed quickly, and simultaneously, the shield segment connected in axial direction and circumferential direction can obtain good connection strength in axial direction and circumferential direction.

Description

Technical Field

[0001] This invention relates to the field of shield tunnel segment installation technology, and in particular to a shield tunnel segment with a connecting device and a method for assembling the shield tunnel segment. Background Technology

[0002] Shield tunneling, with its advantages of good concealment, minimal impact on the surrounding environment, and high economic efficiency, is widely used in the construction of tunnels for urban subways, highways, and railways in my country. Currently, both domestically and internationally, bolts are mostly used as connectors for assembling shield tunnel segments. Bolt holes are pre-set on the segments, and bolts are used to connect the segments in the circumferential and longitudinal directions.

[0003] However, in the actual assembly of tunnel segments, bolted connections can provide a certain preload and are simple to understand, but they also have many problems: bolt holes are prone to cracking, and water seepage and leakage occur frequently; tightening bolts requires manual labor, which is difficult, involves many holes, takes a long time, and consumes a lot of manpower and resources. Bolts are easily corroded by water and their durability is not high enough. These factors affect the safe construction and normal operation of the tunnel.

[0004] In the publicly disclosed patent document CN217421198U, the connection method is a simple dovetail tenon and mortise connection structure. The connection method is simple, but after the shield tunnel segments are laid to form a tunnel, the axial and circumferential tensile forces of the tunnel are large. The dovetail tenon and mortise structure alone cannot bear the axial and circumferential loads of the tunnel well. The focus of this invention is to reduce manual labor, improve the assembly efficiency of shield tunnel segments, shorten the shield construction cycle, and at the same time improve the connection strength between each shield tunnel segment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing shield tunnel segment connection method is single and cannot enable the shield tunnel segment to withstand loads in multiple directions. The purpose of the present invention is to provide a shield tunnel segment with a connection device and a method for assembling the shield tunnel segment, which can improve the installation speed and strengthen the connection strength between shield tunnel segments.

[0006] This invention is achieved through the following technical solution:

[0007] A tunnel segment with a connecting device includes:

[0008] Several tube segments, wherein the tube segments are arc-shaped structures;

[0009] A first connecting component is disposed on two end faces of the segment body in the circumferential direction;

[0010] The second connecting component is disposed on two end faces of the segment body in the axial direction;

[0011] The segments are assembled together in the circumferential direction by the first connecting component to form a pipe, and several pipes are assembled together in the axial direction of the segments by the second connecting component to form a tunnel.

[0012] In the above technical solution, the segments are connected in the circumferential direction by the first connecting component and form an annular pipe. The annular pipe is then installed in the axial direction of the annular segments by the second connecting component.

[0013] In some alternative technical solutions, the first connecting component includes a male tenon and a female tenon. The segment body includes a plurality of basic segments. The end face of one end of the basic segment along the circumferential direction is connected to a male tenon. The end face of the other end of the basic segment along the circumferential direction is provided with a first groove. The top surface of the first groove is connected to a female tenon. The male tenon is used to engage with the female tenon.

[0014] In the above technical solution, the foundation segments can be connected by male and female tenons to ensure the circumferential stability of the foundation segments.

[0015] In some optional technical solutions, both the male tenon and the female tenon are cuboid in shape with equal length, width, and height. The top surface of the male tenon has a groove extending downwards towards the axial direction of the base segment, forming a connecting block. The groove is L-shaped. The female tenon has a first straight groove extending through its center along the axial direction of the base segment. A second straight groove extends through the bottom end of the first straight groove near its side. The opening length of the first straight groove is equal to the width of the male tenon. The opening of the first straight groove faces the opening of the first groove. The opening length of the groove is equal to the distance from the bottom surface of the first straight groove to the opposite side of the female tenon. The second straight groove is used to fit and engage with the connecting block, and the first straight groove is used to fit and engage with the male tenon on one side of the connecting block.

[0016] In the above technical solution, the male tenon and the female tenon are engaged with the connecting block through the second straight groove, and the first straight groove is engaged with the male tenon to form a mortise and tenon structure, which fixes the circumferential direction of the segment body and achieves a stable effect.

[0017] In some alternative technical solutions, the height of the first groove is greater than the height of the male tenon, and there is a gap between the end face of the female tenon facing the opening of the first groove and the opening of the first groove. The base segment is used to slide along the first groove through the male tenon and engage with the female tenon of another adjacent base segment, and the engaging surfaces of the two base segments are in contact.

[0018] In the above technical solution, during installation, the male tenon is slid through the first groove, and then the tube body is slid upward to engage the male tenon and the female tenon.

[0019] In some alternative technical solutions, the pipe segment body also includes a connector segment, the end faces of which are provided with a first groove at both ends along the circumferential direction, and a female tenon is also provided in the first groove of the connector segment.

[0020] In the above technical solution, the insert pipe segment is used to transition the pipe segments on both sides.

[0021] In some optional technical solutions, the segment body further includes a capping segment, a left transition segment, and a right transition segment. Both ends of the capping segment are provided with male tenons along the circumferential direction. One end of the left transition segment is provided with a male tenon along the circumferential direction. The other end of the left transition segment has a second groove formed along its inner circumferential wall. A female tenon is provided on the top surface of the second groove. The first connecting component and the second groove of the right transition segment are mirror images of the left transition segment. The capping segment... Both ends along the circumferential direction are respectively engaged with the left transition pipe segment and the right transition pipe segment via male tenons along the second groove, and the engaging surfaces are in contact. The left transition pipe segment is engaged with the female tenon of the base pipe segment via male tenons, and the right transition pipe segment is connected with the female tenon of the insertion pipe segment via male tenons. Several base pipe segments, insertion pipe segments, left transition pipe segments, right transition pipe segments and capping pipe segments are coaxial and have the same outer diameter, inner diameter and thickness. They can be adapted and engaged along the same axis to form a ring pipe through the first connecting component.

[0022] In the above technical solution, the left transition segment and the right transition segment are connected to the foundation segment and the insertion segment, respectively. When the capping is finally performed, the capping segment can be inserted between the left transition segment and the right transition segment to form a pipeline.

[0023] In some optional technical solutions, the second connecting component includes a fixed block, a limiting block, and a movable block of equal shape and volume. The bottom end of the fixed block has a through hole. The limiting block is fixedly connected to the movable block through a rotating shaft. The movable block drives the fixed block to rotate through the rotating shaft. The tube body has a slot at one end opposite to the second connecting component along the axial direction. The fixed block is used to insert into the slot to fix the axially adjacent tube body.

[0024] In the above technical solution, when the segments are axially connected, the two segments are fixed by inserting a fixing block into the slot.

[0025] In some optional technical solutions, a receiving groove is formed at one end of the inner peripheral wall of the segment body along the axial direction, the movable block is disposed in the receiving groove, a first sliding groove is formed at the end of the receiving groove facing the adjacent segment body along the axial direction, and a second sliding groove is formed at the end of the slot facing the adjacent segment body along the axial direction. The first sliding groove communicates with the receiving groove, and the second sliding groove communicates with the slot. The first sliding groove and the second sliding groove are equal in size and shape. The opening size of the receiving groove and the slot is larger than the rotatable distance of the movable block. A through groove is formed between the end face of the movable block facing the segment body along the axial direction and the adjacent end face. The edge located at the through groove forms an operating handle. The center lines of the first sliding groove and the second sliding groove on the segment body along the axial direction of the segment body are separated.

[0026] In the above technical solution, after the fixing block slides into the slot, and the two axial segments are in contact, the movable block in the receiving slot is rotated, and the fixing block also rotates accordingly to achieve fixation.

[0027] A method for assembling tunnel segments is based on assembling a tunnel segment with a connecting device as described above.

[0028] Among some alternative technical solutions, a method for assembling tunnel segments includes the following installation steps:

[0029] S1. Position and install the connector piece;

[0030] S2. A base segment and a right transition segment are respectively installed at both ends of the insertion segment along the circumferential direction via the first connecting assembly;

[0031] S3. Install the remaining foundation segments sequentially through the first connecting assembly along the circumferential direction of the foundation segment away from the insertion segment.

[0032] S4. Install a left transition segment at one end along the circumferential direction of the last installed foundation segment;

[0033] S5. The capping pipe segment is slid through the second groove and installed between the left transition pipe segment and the right transition pipe segment through the first connecting component to form a ring pipe;

[0034] S6. Following the installation steps of S1-S5, install the pipe segment body along the axial direction of the annular pipe through the second connecting assembly. After installing several annular pipes, a tunnel is formed.

[0035] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0036] 1. In this invention, when connecting the segments in the circumferential direction, the male tenons on the base segments and the right transition segments are respectively inserted into the two female tenons on the insertion segments to achieve fixation. Subsequently, several base segments are connected in sequence and the left transition segment is connected to the last base segment. When sealing, the sealing segment is slid along the second groove on the left transition segment and the right transition segment and snapped together to finally form a pipe. This connection method is efficient and the circumferential stability is achieved by the male and female tenons on each pair of adjacent segments, which can improve the circumferential connection strength of the segments.

[0037] 2. In this invention, when the segments are axially connected, the fixing block of one segment can be inserted into the slot of another segment along the axial direction. After the axial end faces of the two segments are in contact, the movable block is rotated through the receiving groove, and the fixing block also rotates accordingly. Finally, the fixing block and the movable block will be limited to the sides of the first and second sliding grooves to achieve fixation. At the same time, the axial connection strength of the segments can also be improved. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a schematic diagram of the tunnel structure after several pipes are axially spliced ​​together in this invention;

[0040] Figure 2 This is a schematic diagram of a pipeline after several segments of the pipe body are circumferentially spliced ​​together in this invention;

[0041] Figure 3 This is a cross-sectional view of the pipeline after circumferential splicing of several pipe segments in this invention. Figure 1 ;

[0042] Figure 4 This is a cross-sectional view of the pipeline after circumferential splicing of several pipe segments in this invention. Figure 2 ;

[0043] Figure 5 For Figure 4 A magnified view of a section at point A in the middle;

[0044] Figure 6 This is a schematic diagram of the basic segment structure in this invention;

[0045] Figure 7 This is a cross-sectional view of the basic tunnel segment in this invention. Figure 1 ;

[0046] Figure 8 This is a schematic diagram of the structure of the left transition segment in this invention;

[0047] Figure 9 This is a schematic diagram of the right transition segment in this invention;

[0048] Figure 10 This is a schematic diagram of the structure of the insertion tube in this invention;

[0049] Figure 11 This is a schematic diagram of the capping segment in this invention;

[0050] Figure 12 This is a schematic diagram of the male tenon structure in this invention;

[0051] Figure 13 This is a schematic diagram of the female tenon structure in this invention;

[0052] Figure 14 This is a schematic diagram of the interlocking structure of the male and female tenons in this invention;

[0053] Figure 15 This is a schematic diagram of the axial connection of two basic segments in this invention;

[0054] Figure 16 for Figure 15 A magnified view of a section at point B in the middle;

[0055] Figure 17 This is a cross-sectional view of the basic tunnel segment in this invention. Figure 2 ;

[0056] Figure 18 This is a schematic diagram of the limiting block in this invention;

[0057] Figure 19 This is a schematic diagram of the structure of the fixed block and the movable block in this invention;

[0058] Figure 20 This is a schematic diagram of the second connecting component in its normal state according to the present invention;

[0059] Figure 21 This is a schematic diagram of the structure of the second connecting component after rotation in this invention.

[0060] The reference numerals in the attached figures represent:

[0061] 11. Base segment; 12. Insert segment; 13. Left transition segment; 14. Right transition segment; 15. Capping segment; 21. First groove; 22. Second groove; 31. Male tenon; 311. Slot; 312. Connecting block; 32. Female tenon; 321. First straight groove; 322. Second straight groove; 4. Second connecting assembly; 41. Movable block; 42. Fixed block; 43. Rotating shaft; 44. Limiting block; 51. Receiving groove; 52. First sliding groove; 53. Second sliding groove; 54. Slot. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments and accompanying drawings. The illustrative embodiments and descriptions of this invention are for illustrative purposes only and are not intended to limit the invention. It should be noted that this invention is already in the actual research and development stage.

[0063] Example 1

[0064] like Figures 1 to 5 As shown, a tunnel segment with a connecting device includes:

[0065] Several tunnel segments, each with an arc-shaped structure;

[0066] The first connecting component is disposed on two end faces of the segment body in the circumferential direction;

[0067] The second connecting component 4 is disposed on the two end faces of the segment body in the axial direction.

[0068] The segments are assembled together in the circumferential direction by the first connecting component to form a pipeline, and several pipelines are assembled together in the axial direction of the segments by the second connecting component 4 to form a tunnel.

[0069] The first connecting component includes a male tenon 31 and a female tenon 32. The segment body includes several basic segments 11. The end face of one end of the basic segment 11 along the circumferential direction is connected to the male tenon 31. The end face of the other end of the basic segment 11 along the circumferential direction is provided with a first groove 21. The top surface of the first groove 21 is connected to the female tenon 32. The male tenon 31 is used to engage with the female tenon 32.

[0070] like Figure 4 , Figures 12 to 14 As shown, both the male tenon 31 and the female tenon 32 are rectangular parallelepipeds with equal length, width, and height. The top surface of the male tenon 31 has a groove 311 extending downwards in the axial direction of the base segment 11, forming a connecting block 312. The groove 311 is L-shaped. The middle of the female tenon 32 has a first straight groove 321 extending along the axial direction of the base segment 11. The bottom end of the first straight groove 321 has a second straight groove 322 extending near the side. The opening length of the first straight groove 321 is equal to the width of the male tenon 31. The opening of the first straight groove 321 faces the opening of the first groove 21. The opening length of the groove 311 is equal to the distance from the bottom surface of the first straight groove 321 to the opposite side of the female tenon 32. The second straight groove 322 is used to fit and engage with the connecting block 312. The first straight groove 321 is used to fit and engage with the male tenon 31 on one side of the connecting block 312.

[0071] like Figure 6 and Figure 7As shown, the height of the first groove 21 is greater than the height of the male tenon 31. There is a gap between the end face of the female tenon 32 facing the opening of the first groove 21 and the opening of the first groove 21. The base tube 11 is used to slide along the first groove 21 through the male tenon 31 and engage with the female tenon 32 of another adjacent base tube 11. The engaging surfaces of the two base tubes 11 are in contact.

[0072] Specifically, the male tenon 31 and the female tenon 32 are two cuboids of equal shape and size. The engagement method of the male tenon 31 and the female tenon 32 is as follows: the position of the female tenon 32 remains unchanged, and the male tenon 31 is moved to engage. During engagement, the male tenon 31 is first positioned directly below the female tenon 32, and the L-shaped groove of the male tenon 31 must face the female tenon 32. The male tenon 31 and the female tenon 32 must be perpendicular to each other. When the connecting block 312 of the male tenon 31 moves to below the second straight groove 322, the male tenon 31 is then raised so that the connecting block 312 engages with the second straight groove 322. At the same time as the engagement is completed, the first straight groove 321 of the female tenon 32 will also engage with the male tenon 31 at the L-shaped groove. The opening length of the first straight groove 321 is equal to the width of the male tenon 31, thus enabling the fitting engagement.

[0073] The circumferential connection method of adjacent foundation segments 11 is as follows: one end of the foundation segment 11 is connected to a male tenon 31, and the other end has a first groove 21. The top surface of the groove is connected to a female tenon 32. The opening height of the groove is greater than the length of the male tenon 31, and the opening width of the groove is equal to the width of the male tenon 31. The groove opening of the first straight groove 321 of the female tenon 32 faces the groove opening of the first groove 21. When connecting, the male tenon 31 of one foundation segment 11 is slid along the bottom surface of the groove of the other foundation segment 11. After sliding a certain distance, the circumferential connection end faces of the two foundation segments 11 are put together, so that the male tenon 31 of the connected foundation segment 11 rises and engages with the female tenon 32, thus completing the installation of the two foundation segments 11.

[0074] like Figure 10 As shown, the pipe segment body also includes a pipe segment 12. The end faces of both ends of the pipe segment 12 along the circumferential direction are provided with a first groove 21, and a female tenon 32 is also provided in the first groove 21 of the pipe segment 12.

[0075] Specifically, the connector segment 12 also serves as a transition. After the connector segment 12 is installed, other segments can be installed at both ends of the connector segment 12 in the circumferential direction. The installation method is the same as that of the basic segment 11, and the segments on both sides of the connector segment 12 can be installed simultaneously.

[0076] like Figure 8 , Figure 9 and Figure 11As shown, the segment body also includes a capping segment 15, a left transition segment 13, and a right transition segment 14. Both ends of the capping segment 15 are provided with male tenons 31 along the circumferential direction. One end of the left transition segment 13 is provided with a male tenon 31 along the circumferential direction, and the other end of the left transition segment 13 has a second groove 22 formed along its inner circumferential wall. A female tenon 32 is provided on the top surface of the second groove 22. The first connecting component and the second groove 22 of the right transition segment 14 are mirror images of the left transition segment 13. Both ends of the capping segment 15 are connected... The male tenon 31 is respectively engaged with the left transition pipe segment 13 and the right transition pipe segment 14 along the second groove 22, and the engagement surfaces are in contact. The left transition pipe segment 13 is engaged with the female tenon 32 of the base pipe segment 11 through the male tenon 31, and the right transition pipe segment 14 is connected with the female tenon 32 of the insertion pipe segment 12 through the male tenon 31. Several base pipe segments 11, insertion pipe segments 12, left transition pipe segments 13, right transition pipe segments 14 and capping pipe segments 15 are coaxial and have the same outer diameter, inner diameter and thickness. They can be adapted and engaged along the same axis to form a ring pipe through the first connecting component.

[0077] Specifically, during the final installation of the annular pipe, if the design of the last segment used for capping is the same as that of the foundation segment 11, it cannot be installed. In this embodiment, the last segment is the capping segment 15, which needs to be installed between the left transition segment 13 and the right transition segment 14. The left transition segment 13 and the right transition segment 14 are mirror images of each other. One end of the left transition segment 13 has a male tenon 31, and the other end has a second groove 22 along the end face on its inner circumferential wall. The height of the second groove 22 is also greater than the height of the male tenon 31. One end of the male tenon 31 of the left transition segment 13 is connected to the female tenon 32 of the last foundation segment 11, and the male tenon 31 of the right transition segment 14 is connected to the female tenon 32 at the other end of the insertion segment 12. The connection method of the left transition segment 13 and the right transition segment 14 is the same as that of the base segment 11. Both ends of the capping segment 15 in the circumferential direction are provided with male tenons 31. When connecting, the capping segment 15 is moved into the unformed pipe cavity, and then placed between the left transition segment 13 and the right transition segment 14. It is moved towards the middle of the left transition segment 13 and the right transition segment 14. The two male tenons 31 of the capping segment 15 will slide along the bottom surface of the second groove 22. When the male tenons 31 are close to the inner wall of the second groove 22, that is, the inner circumferential wall of the capping segment 15 is coaxial with the inner circumferential wall of the left transition segment 13, it is pushed towards the female tenon 32 of the left transition segment 13 to complete the installation. At the same time, the right transition segment 14 at the other end of the capping segment 15 is also installed.

[0078] It should be noted that in this embodiment, there are 3 basic pipe segments 11, 1 insertion pipe segment 12, 1 left transition pipe segment 13, 1 right transition pipe segment 14, and 1 capping pipe segment 15. During installation, the insertion pipe segment 12 is installed first, followed by the installation of the basic pipe segment 11 and the right transition pipe segment 14 on both sides of the insertion pipe segment 12. Then, the remaining basic pipe segments 11 are installed. Next, the left transition pipe segment 13 is installed at the last basic pipe segment 11, and finally the capping pipe segment 15 is installed. The seven pipe segments have the same inner and outer diameters and thicknesses and are coaxial. After installation, a ring-shaped pipe is formed. At the same time, in the circumferential direction of the pipe, every two adjacent pipe segments are aligned. Between them, the formed segment body will apply tension to each set of male tenons 31 and female tenons 32 in the circumferential direction. However, the connection method of male tenons 31 and female tenons 32 is to connect in the circumferential direction of the segment body. Therefore, the male tenons 31 and female tenons 32 that are engaged are not easy to loosen in the circumferential direction. In the axial direction, the male tenons 31 and female tenons 32 are mortise and tenon structures. Moreover, the other end of each set of connected segment bodies is connected to another segment body, realizing the interlocking effect. Therefore, a stable effect can be achieved. In addition, this installation method is efficient. The first connecting component can improve the circumferential connection strength between adjacent connected segment bodies.

[0079] like Figures 17 to 21 As shown, the second connecting component 4 includes a fixed block 42, a limiting block 44, and a movable block 41, all of equal shape and volume. The bottom end of the fixed block 42 has a through hole. The limiting block 44 is fixedly connected to the movable block 41 through a rotating shaft 43. The movable block 41 drives the fixed block 42 to rotate through the rotating shaft 43. The tube body has a slot 54 at one end opposite to the second connecting component 4 along the axial direction. The fixed block 42 is used to insert into the slot 54 to fix the axially adjacent tube body.

[0080] like Figures 15 to 21 As shown, a receiving groove 51 is provided at one end of the inner peripheral wall of the segment body along the axial direction. The movable block 41 is disposed in the receiving groove 51. A first sliding groove 52 is provided at the end of the receiving groove 51 facing the adjacent segment body along the axial direction. A second sliding groove 53 is provided at the end of the slot 54 facing the adjacent segment body along the axial direction. The first sliding groove 52 is connected to the receiving groove 51, and the second sliding groove 53 is connected to the slot 54. The first sliding groove 52 and the second sliding groove 53 are equal in size and shape. The opening size of the receiving groove 51 and the slot 54 is larger than the rotatable distance of the movable block 41. A through groove is provided between the end face of the movable block 41 facing the segment body along the axial direction and the adjacent end face. The edge located at the through groove forms an operating handle. The center lines of the first sliding groove 52 and the second sliding groove 53 on the segment body along the axial direction are separated.

[0081] Specifically, after the seven segments are connected to form a pipeline, segments can continue to be installed along the axial direction of the pipeline. Each segment has a movable block 41 at one end in the axial direction. The movable block 41 is connected to a fixed block 42 via a rotating shaft 43. A limit block 44 is provided on the rotating shaft 43. The other end has a second groove 53 and a slot 54, which are connected. The end face of the segment located at one end of the movable block 41 has a first groove 52 and a receiving groove 51 connected to the first groove 52. The receiving groove 51 and the slot 54 are used to receive the movable block 41 and the fixed block 42, respectively. The total length of the first groove 52 and the second groove 53 is equal to the length of the limit block 44. The two end faces of the movable block 41 with adjacent edges have through grooves that are inclined along the edges. The edges at the through grooves form an operating handle. The center lines of the first groove 52 and the second groove 53 on each segment are separate.

[0082] In the axial installation method of the pipe segment body, one of the pipe segments body is connected to the already installed pipe. The axial installation surface of the pipe is the end face where the first sliding groove 52 is located. The second sliding groove 53 of the pipe segment body to be installed is moved toward the corresponding first sliding groove 52, so that the fixing block 42 and the limiting block 44 on the corresponding pipe slide along the second sliding groove 53, and the fixing block 42 slides into the slot 54. At the same time, the axial installation surfaces of the two axial pipe segments body are in contact. Finally, the movable block 41 is rotated toward the rotatable space of the receiving groove 51 by the operating handle at the through groove. The limiting block 44 is limited between the first sliding groove 52 and the second sliding groove 53 and cannot move, thus forming a fixed position. When the movable block 41 rotates, the fixing block 44... 2 will rotate with the movable block 41 via the rotating shaft 43. Finally, the movable block 41 will rotate 180° to the bottom of the first slide groove 52, and the fixed block 42 will also rotate 180° to the bottom of the second slide groove 53. In the axial direction, the fixed block 42 will be limited by the obstruction of the second slide groove 53, and the movable block 41 will be limited by the obstruction of the first slide groove 52. Neither of them can slide out through the first slide groove 52 or the second slide groove 53. Therefore, the circumferential direction of the pipe segment body is limited and installed. Then, the second layer of pipe and other layers of pipe can be installed according to the axial and circumferential installation methods of the pipe segment body. After the installation is completed, the connection of the pipe segment body can obtain a high connection strength through the second connecting component in the axial direction.

[0083] Example 2

[0084] A method for assembling tunnel segments is provided, based on the assembly of a tunnel segment with a connecting device according to Embodiment 1.

[0085] The installation process includes the following steps:

[0086] S1. Position and install the connector piece 12;

[0087] S2. A base segment 11 and a right transition segment 14 are respectively installed at both ends of the insertion segment 12 in the circumferential direction through the first connecting assembly;

[0088] S3. Install the remaining foundation segments 11 sequentially through the first connecting assembly along the circumferential direction of the foundation segment 11 away from the insertion segment 12;

[0089] S4. Install a left transition segment 13 at one end of the last installed base segment 11 in the circumferential direction;

[0090] S5. The capping pipe segment 15 is slid through the second groove 22 and installed between the left transition pipe segment 13 and the right transition pipe segment 14 through the first connecting assembly to form a ring pipe;

[0091] S6. Following the installation steps of S1-S5, install the pipe segment body along the axial direction of the annular pipe through the second connecting component 4, and form a tunnel after installing several annular pipes.

[0092] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A shield segment having a connection device, characterized in that The utility model relates to a kind of tunnel construction method and tunnel construction system, including: Several pipe piece bodies, the pipe piece body is arc structure; First connecting component, the first connecting component is set on the two end faces of the pipe piece body circumferential direction; Second connecting component (4), the second connecting component (4) is set on the two end faces of the pipe piece body axial direction; Wherein, the pipe piece body is mutually assembled to form pipeline along circumferential direction by the first connecting component, and several pipelines are mutually assembled to form tunnel along the axial direction of the pipe piece body by second connecting component (4); The first connecting component includes male tenon (31) and female tenon (32), the pipe piece body includes several basic pipe pieces (11), the end face of one end of the basic pipe piece (11) is connected with male tenon (31) along circumferential direction, the end face of the other end of the basic pipe piece (11) is provided with first recess (21) along circumferential direction, the top surface of the first recess (21) is connected with female tenon (32), and the male tenon (31) is used for with female tenon (32) clamping connection; The male tenon (31) and the female tenon (32) are all cuboid and long, wide, high dimensions are all equal, the top surface middle part of the male tenon (31) is provided with clamping groove (311) and forms connecting block (312) downwards along the axial direction of the basic pipe piece (11), the shape of the clamping groove (311) is L type, the middle part of the female tenon (32) is penetrated with first straight groove (321) along the axial direction of the basic pipe piece (11), the second straight groove (322) is penetrated in the bottom end close to the side of the first straight groove (321), the opening length of the first straight groove (321) is equal to the width of the male tenon (31), the opening of the first straight groove (321) is towards the opening of the first recess (21), the opening length of the clamping groove (311) is equal to the distance from the bottom surface of the first straight groove (321) to the opposite side of the female tenon (32), the second straight groove (322) is used for with the connecting block (312) adaptation and clamping connection, and the first straight groove (321) is used for with the male tenon (31) of one side of the connecting block (312) adaptation and clamping connection; The pipe piece body further includes splicing pipe piece (12), the first recess (21) is set in the end face of both ends of the splicing pipe piece (12) along circumferential direction, and female tenon (32) is also provided in the first recess (21) of splicing pipe piece (12). The pipe piece body further comprises a capping pipe piece (15), a left transition pipe piece (13) and a right transition pipe piece (14), the capping pipe piece (15) is provided with a male tenon (31) at both ends in the circumferential direction, the left transition pipe piece (13) is provided with a male tenon (31) at one end in the circumferential direction, the other end of the left transition pipe piece (13) is provided with a second groove (22) along the inner circumferential wall of the left transition pipe piece (13), the top surface in the second groove (22) is provided with a female tenon (32), the first connecting assembly and the second groove (22) of the right transition pipe piece (14) are mirror image arranged with the left transition pipe piece (13), the two ends of the capping pipe piece (15) in the circumferential direction are respectively connected with the left transition pipe piece (13) and the right transition pipe piece (14) along the second groove (22) through the male tenon (31), and the clamping surfaces are in close contact, the left transition pipe piece (13) is connected with the female tenon (32) of the base pipe piece (11) through the male tenon (31), the right transition pipe piece (14) is connected with the female tenon (32) of the insertion pipe piece (12) through the male tenon (31), the base pipe piece (11), the insertion pipe piece (12), the left transition pipe piece (13), the right transition pipe piece (14) and the capping pipe piece (15) are coaxial, and have the same outer diameter, inner diameter and thickness, and can be connected through the first connecting assembly along the same axis to form a ring-shaped pipeline; The second connecting assembly (4) comprises a fixed block (42), a limiting block (44) and a movable block (41) which are equal in shape and volume, a through hole is formed in the bottom end of the fixed block (42), the limiting block (44) is fixedly connected with the movable block (41) through a rotating shaft (43), the movable block (41) drives the fixed block (42) to rotate through the rotating shaft (43), and an insertion slot (54) is formed in one end of the pipe piece body relative to the second connecting assembly (4) in the axial direction, and the fixed block (42) is inserted into the insertion slot (54) to fix the pipe piece body in the axial direction.

2. A shield segment with connection means according to claim 1, characterized in that: The height of the first groove (21) is greater than the height of the male tenon (31), the end face of the female tenon (32) facing the opening of the first groove (21) is spaced from the opening of the first groove (21), the base pipe piece (11) is used to slide along the first groove (21) through the male tenon (31) and be connected with the female tenon (32) of another adjacent base pipe piece (11), and the clamping surfaces of the two base pipe pieces (11) are in close contact.

3. A shield segment with connection means according to claim 1, characterized in that: The inner circumferential wall of the segment body is provided with a receiving groove (51) at one end in the axial direction, the movable block (41) is arranged in the receiving groove (51), the receiving groove (51) is provided with a first sliding groove (52) towards one end of the segment body in the axial direction, the insertion groove (54) is provided with a second sliding groove (53) towards one end of the segment body in the axial direction, the first sliding groove (52) and the second sliding groove (53) are in communication with the receiving groove (51) and the insertion groove (54) respectively, the first sliding groove (52) and the second sliding groove (53) are equal in size and shape, the opening size of the receiving groove (51) and the insertion groove (54) is greater than the reversible distance of the movable block (41), the end face of the movable block (41) towards one end of the segment body in the axial direction is provided with a through groove between the adjacent end faces, and the edge located at the through groove forms a handle, and the center lines of the first sliding groove (52) and the second sliding groove (53) on the segment body in the axial direction of the segment body are apart.

4. A method of assembling segments of a shield tunnel, characterized in that: The shield segment with the connecting device is assembled based on any one of claims 1-3, comprising the following installation steps: S1, positioning and installing the insertion segment (12); S2, installing a basic segment (11) and a right transition segment (14) through the first connecting assembly at both ends of the insertion segment (12) in the circumferential direction respectively; S3, installing the remaining basic segments (11) through the first connecting assembly in sequence at one end of the basic segment (11) away from the insertion segment (12) in the circumferential direction; S4, installing a left transition segment (13) at one end of the basic segment (11) in the circumferential direction; S5, sliding the capping segment (15) through the second groove (22) and installing it between the left transition segment (13) and the right transition segment (14) through the first connecting assembly to form an annular pipeline; S6, installing the segment body through the second connecting assembly (4) in the axial direction of the annular pipeline according to the installation steps S1-S5, and installing several annular pipelines to form a tunnel.

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