Multifunctional leveling and positioning device for tunnel steel arch and using method

Abstract

The invention discloses a multifunctional leveling and positioning device for a tunnel steel arch and a using method, and relates to the technical field of tunnel construction. Comprising a lower base and an upper base, and a foot spiral adjuster is installed between the upper base and the lower base. A first sliding groove is formed in the upper base, and a first rail is installed in the first sliding groove. A second sliding groove is formed in the first rail, and a second rail is installed on the second sliding groove. A positioning pile is mounted on the track II; at least four groups of positioning piles are arranged, and base plates are mounted at the tops; the first sliding groove is perpendicular to the second sliding groove. A laser transmitter and a center line base point block are installed on the two sides of the upper base respectively, and the two sides are adjacent. A positioning telescopic piece is installed on the center line base point block. The problem that in the prior art, the leveling and positioning accuracy of the steel arch is not accurate is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel steel arch erection construction, and specifically relates to a multifunctional leveling and positioning device for tunnel steel arches and a usage method thereof. Background Technique

[0002] Currently, in the field of tunnel steel arch erection construction, during erection, precast concrete blocks are generally used for support and leveling. This method can only perform simple support and leveling on the steel arch, with a large leveling deviation, easily causing the axis and verticality of the steel arch to deviate, not conforming to the design, and even possibly leading to the failure of the initial support structure of the tunnel. At the same time, it is impossible to protect the connection steel plate, and in subsequent construction, the bolt holes on the connection steel plate are easily blocked by the initial support shotcrete, affecting subsequent construction and unable to control the spacing between adjacent steel arches.

[0003] Therefore, we provide a multifunctional leveling and positioning device for tunnel steel arches and a usage method thereof to solve the above problems. Summary of the Invention

[0004] The present invention aims to design a multifunctional leveling and positioning device for tunnel steel arches and a usage method thereof to solve the problem of inaccurate leveling and positioning accuracy of steel arches in the prior art. To solve the above technical problems, the present invention provides the following technical solutions:

[0005] A multifunctional leveling and positioning device for tunnel steel arches includes a lower base and an upper base, and a foot screw adjuster is installed between the upper base and the lower base;

[0006] A first chute is provided on the upper base, and a first track is installed in the first chute; a second chute is provided on the first track, and a second track is installed on the second chute; a positioning pile is installed on the second track; at least four groups of positioning piles are provided, and a backing plate is installed on the top;

[0007] The first chute and the second chute are vertically arranged;

[0008] Laser emitters and center line base blocks are respectively installed on both sides of the upper base, and are adjacent to each other on both sides; a positioning telescopic member is installed on the center line base block.

[0009] In a further technical solution, a spirit level is installed in the middle of the upper base;

[0010] The foot screw adjuster includes a threaded rod, the bottom of the threaded rod is fixedly connected to the lower base, and the top is connected to the upper base;

[0011] An adjusting nut is installed on the threaded rod, and the adjusting nut is adapted to adjust the position of the upper base on the threaded rod.

[0012] In a further technical solution, the size of the lower base is larger than the size of the upper base.

[0013] In a further technical solution, the vertical cross-section of the first chute is "convex" shaped, and the first track is adapted to the first chute; the top of the first track is fixedly connected to the second track;

[0014] The second track is horizontally distributed and perpendicular to the first track; the longitudinal cross-section of the second track is "convex" shaped, and positioning columns are installed on the second track; chutes are provided on both sides of the second track.

[0015] In a further technical solution, a sliding sleeve is installed at the bottom of the positioning pile, the sliding sleeve is slidably sleeved on the second track, and the top is integrally connected to the positioning pile;

[0016] The steel arch is detachably installed on the backing plate, and a connecting steel plate is arranged under the steel arch; connecting holes are provided on the connecting steel plate;

[0017] Flange plates are arranged on the steel arch, and the flange plates are located above the laser emitter.

[0018] In a further technical solution, the positioning telescopic member includes a base point tube and a sleeve, the base point tube is vertically connected to the sleeve; a connecting cavity is provided in the sleeve, and a telescopic rod is installed, and an L-shaped quick tightening wrench bolt is installed outside the sleeve; a positioning tube is installed at the end of the telescopic rod away from the sleeve; the positioning tube is parallel to the base point tube.

[0019] In a further technical solution, two sets of the first track and the second track are provided, and they are distributed in a cross shape; three sets of the foot screw adjusters are provided and are installed in a triangle at the bottom of the upper base; the positioning piles are distributed in a rectangle.

[0020] In a further technical solution, a position hole is opened upward in the center line base point block, and the position hole is adapted to be detachably connected to the base point tube upward, a center hole is opened on the backing plate, and the positioning tube is adapted to be movably inserted into the center hole.

[0021] A method for using a multi-functional leveling and positioning device for a tunnel steel arch, comprising the following steps:

[0022] Step 1. First, according to the positions of the connecting holes reserved on the connecting steel plate of the steel arch, by adjusting the positions of the first chute and the first track, the second chute and the second track, the positioning pile can just be inserted into the connecting holes of the connecting steel plate of the steel arch;

[0023] Step 2. Then, by measuring and positioning the position of the first steel arch, place the backing plate on the backing plate, and by adjusting the foot screw adjuster, make the bubble in the level centered;

[0024] Step 3. Finally, place the steel arch on the backing plate so that the positioning piles are exactly inserted into the connecting holes of the connecting steel plates, and turn on the laser emitter. Control the verticality of the steel arch by checking the distance between the same side flange of the steel arch and the laser beam.

[0025] Step 4. After the installation of the first steel arch is completed, adjust the length of the telescopic rod according to the designed spacing between the steel arches, and fix it with an L-shaped quick tightening wrench bolt; insert the base pipe into the center base block of the center line, and press the sleeve tightly against the side of the upper base to ensure the position of the next steel arch relative to the previous one.

[0026] Step 5. Then place the backing plate with the adjusted positioning piles at the position of the positioning pipe. Insert the positioning pipe into the center base point of the next backing plate to complete the positioning of the next steel pipe frame, and then install it according to the installation method of the first arch frame.

[0027] Step 6. When the lower heading is excavated, after excavation, remove the backing plate from the connecting steel plate, and then connect the next section of the steel arch.

[0028] Compared with the prior art, the following beneficial effects are achieved:

[0029] In the present invention, by setting the upper and lower bases and using the convex-shaped tracks 1 and 2, the position of the positioning piles can be adjusted, so as to effectively connect the bottom connecting steel plates of the steel arches. During installation, the verticality is adjusted by the laser emitter and the levelness is adjusted by the spirit level, making the installation of the steel arch end convenient and accurate.

[0030] Furthermore, the length is controlled by adjacent positioning telescopic parts, which can ensure the determination of the spacing position of adjacent steel arches, thus guaranteeing the improvement of the installation accuracy and qualification rate of the steel arches in the tunnel.

[0031] The present invention utilizes a multi-functional leveling and positioning device for tunnel steel arches and its usage method, which is a tunnel steel arch cushion block and its usage method designed from the perspectives of convenience, practicality, innovation, applicability, generality, high efficiency, accuracy, improving the first-class rate of the project, safety performance, and ensuring the construction progress. Through practice, it is proved that this device is convenient, practical, accurate, highly applicable and general. It can not only level precisely, but also control the verticality and axial deviation of the steel arch. At the same time, it can effectively prevent the blockage of the connecting steel plate holes and accurately control the spacing of the arch frames, effectively reducing the rework phenomenon, which is conducive to accelerating the construction progress. In summary, it improves the generality, adaptability, and installation qualification rate of the steel frames, is beneficial to the support of the tunnel body, avoids the risk of tunnel collapse, and at the same time improves the construction accuracy and efficiency, avoids rework, saves labor costs, and is green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1Front schematic view of the multi-functional leveling and positioning device for tunnel steel arch frames of the present invention;

[0033] Figure 2 is Figure 1 Enlarged view of part A of;

[0034] Figure 3 Top schematic view of the multi-functional leveling and positioning device for tunnel steel arch frames of the present invention;

[0035] Figure 4 Top view installation backing plate schematic view of the multi-functional leveling and positioning device for tunnel steel arch frames of the present invention;

[0036] Figure 5 Front backing plate and steel arch frame connection schematic view of the multi-functional leveling and positioning device for tunnel steel arch frames of the present invention;

[0037] Figure 6 Structural schematic view of the positioning telescopic member of the present invention;

[0038] Figure 7 Connection schematic view of two sets of multi-functional leveling and positioning devices for tunnel steel arch frames of the present invention.

[0039] In the figure:

[0040] 1. Lower base; 2. Upper base; 3. Foot screw adjuster; 4. First chute; 5. First track; 6. Second chute; 7. Second track; 8. Positioning pile; 9. Backing plate; 10. Laser emitter; 11. Center line base block; 12. Positioning telescopic member; 13. Level; 14. Threaded rod; 15. Adjusting nut; 16. Sliding sleeve; 17. Steel arch frame; 18. Connecting steel plate; 19. Flange plate; 20. Base pipe; 21. Sleeve; 22. Telescopic rod; 23. L-shaped quick tightening wrench bolt; 24. Positioning pipe. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1

[0043] Please refer to Figures 1 - 7 , which is a technical solution of the present invention. A multi-functional leveling and positioning device for tunnel steel arch frames includes a lower base 1 and an upper base 2, and a foot screw adjuster 3 is installed between the upper base 2 and the lower base 1;

[0044] A chute one 4 is provided on the upper base 2, and a track one 5 is installed in the chute one 4; a chute two 6 is provided on the track one 5, and a track two 7 is installed on the chute two 6; a positioning pile 8 is installed on the track two 7; at least four groups of positioning piles 8 are provided, and a backing plate 9 is installed on the top.

[0045] The chute one 4 and the chute two 6 are vertically arranged; a laser emitter 10 and a center line base point block 11 are respectively installed on both sides of the upper base 2, and they are adjacent to each other on both sides; a positioning telescopic member 12 is installed on the center line base point block 11. The laser reflector detects and feeds back the position upwards, and irradiates upwards with the flange plate of the steel arch frame.

[0046] A spirit level 13 is installed in the middle of the upper base 2; the spirit level detects the levelness.

[0047] The foot screw regulator 3 includes a threaded rod 14, the bottom of the threaded rod 14 is fixedly connected to the lower base 1, and the top is connected to the upper base 2; an adjusting nut 15 is installed on the threaded rod 14, and the adjusting nut 15 is suitable for adjusting the position of the upper base 2 on the threaded rod 14.

[0048] As Figure 3 shown, the size of the lower base 1 is larger than that of the upper base 2.

[0049] Combined Figure 1 , the vertical section of the chute one 4 is "convex" shaped, and the track one 5 is adapted to the chute one 4; the top of the track one 5 is fixedly connected to the track two 7; the track two 7 is horizontally distributed and perpendicular to the track one 5; the longitudinal section of the track two 7 is "convex" shaped, and a positioning column is installed on the track two 7; chutes two 6 are provided on both sides of the track two 7. A sliding sleeve 16 is installed at the bottom of the positioning pile 8, the sliding sleeve 16 is slidably sleeved on the track two 7, and the top is integrally connected to the positioning pile 8; a steel arch frame 17 is detachably installed on the backing plate 9, a connecting steel plate 18 is arranged under the steel arch frame 17; connecting holes are provided on the connecting steel plate 18; a flange plate 19 is provided on the steel arch frame 17, and the flange plate 19 is located above the laser emitter 10.

[0050] As Figure 6 shown, the positioning telescopic member 12 includes a base point tube 20 and a sleeve 21, the base point tube 20 is vertically connected to the sleeve 21; a connecting cavity is provided in the sleeve 21, and a telescopic rod 22 is installed, and an L-shaped quick tightening wrench bolt 23 is installed outside the sleeve 21; a positioning tube 24 is installed at the end of the telescopic rod 22 away from the sleeve 21; the positioning tube 24 is parallel to the base point tube 20.

[0051] Two groups of the track one 5 and the track two 7 are provided, and they are distributed in a cross shape; three groups of the foot screw regulators 3 are provided and are installed at the bottom of the upper base 2 in a triangular shape; the positioning piles 8 are distributed in a rectangle.

[0052] The midline base block 11 is provided with a positioning hole upward, and the positioning hole is adapted to be detachably connected to the base pipe 20 upward. A central hole is provided on the backing plate 9, and the positioning pipe 24 is adapted to be movably inserted into the central hole.

[0053] A method for using a multi-functional leveling and positioning device for a tunnel steel arch, comprising the following steps:

[0054] Step 1: First, according to the positions of the reserved connection holes on the connecting steel plate 18 of the steel arch 17, by adjusting the positions of the first chute 4 and the first track 5, the second chute 6 and the second track 7, the positioning pile 8 can just be inserted into the connection holes of the connecting steel plate 18 of the steel arch 17;

[0055] Step 2: Then, by measuring and positioning the position of the first steel arch 17, place the backing plate 9 on the backing plate, and by adjusting the foot screw regulator 3, make the bubble in the level 13 centered;

[0056] Step 3: Finally, place the steel arch 17 on the backing plate 9, make the positioning pile 8 just insert into the connection hole of the connecting steel plate 18, and turn on the laser emitter 10. Control the verticality of the steel arch 17 by checking the distance between the same side flange 19 of the steel arch 17 and the laser beam;

[0057] Step 4: After the installation of the first steel arch 17 is completed, according to the designed spacing between the steel arches 17, adjust the length of the telescopic rod 22, and use the L-shaped quick tightening wrench bolt 23 for fixation; insert the base pipe 20 into the midline base block 11, and press the sleeve 21 against the side of the upper base 2 to ensure the position of the next steel arch 17 and the previous steel arch 17;

[0058] Step 5: Then place the backing plate 9 with the positioning pile 8 adjusted at the position of the positioning pipe 24, insert the positioning pipe 24 into the central base point of the next backing plate 9, and the positioning of the next steel pipe frame can be completed. Then install it according to the installation of the first arch frame;

[0059] Step 6: When the lower heading is excavated, after excavation, remove the backing plate from the connecting steel plate 18, and then connect the next section of the steel arch 17.

[0060] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention.

[0061] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional leveling and positioning device for tunnel steel arch frames, characterized in that, It includes a lower base (1) and an upper base (2), and a foot screw adjuster (3) is installed between the upper base (2) and the lower base (1); A first chute (4) is provided on the upper base (2), and a first track (5) is installed in the first chute (4); a second chute (6) is provided on the first track (5), and a second track (7) is installed on the second chute (6); a positioning pile (8) is installed on the second track (7); there are at least four groups of positioning piles (8), and a backing plate (9) is installed on the top; The first chute (4) and the second chute (6) are vertically arranged; Laser emitters (10) and center line base blocks (11) are respectively installed on both sides of the upper base (2), and they are adjacent to each other on both sides; a positioning telescopic member (12) is installed on the center line base block (11).

2. The multifunctional leveling and positioning device for tunnel steel arch frames according to claim 1, characterized in that, A spirit level (13) is installed in the middle of the upper base (2); The foot screw adjuster (3) includes a threaded rod (14), the bottom of the threaded rod (14) is fixedly connected to the lower base (1), and the top is connected to the upper base (2); An adjusting nut (15) is installed on the threaded rod (14), and the adjusting nut (15) is suitable for adjusting the position of the upper base (2) on the threaded rod (14).

3. The multi-functional leveling and positioning device for tunnel steel arch frames according to claim 1, characterized in that, The size of the lower base (1) is larger than that of the upper base (2).

4. The multi-functional leveling and positioning device for tunnel steel arch frames according to claim 3, characterized in that, The vertical cross-section of the first chute (4) is "convex"-shaped, and the first track (5) is adapted to the first chute (4); the top of the first track (5) is fixedly connected to the second track (7); The second tracks (7) are horizontally distributed and perpendicular to the first track (5); the longitudinal cross-section of the second track (7) is "convex"-shaped, and positioning columns are installed on the second track (7); the second chutes (6) are provided on both sides of the second track (7).

5. A multi-functional leveling and positioning device for tunnel steel arch frames according to claim 3, characterized in that, A sliding sleeve (16) is installed at the bottom of the positioning pile (8), the sliding sleeve (16) is slidably sleeved on the second track (7), and the top is integrally connected to the positioning pile (8); A steel arch frame (17) is detachably installed on the backing plate (9), and a connecting steel plate (18) is provided under the steel arch frame (17); connecting holes are provided on the connecting steel plate (18); Flange plates (19) are provided on the steel arch frame (17), and the flange plates (19) are located above the laser emitter (10).

6. The multifunctional leveling and positioning device for tunnel steel arch frames according to claim 5, wherein The positioning telescopic member (12) includes a base point tube (20) and a sleeve (21), the base point tube (20) is vertically connected to the sleeve (21); a connecting cavity is provided in the sleeve (21), and a telescopic rod (22) is installed, and an L-shaped quick-tightening wrench bolt (23) is installed outside the sleeve (21); a positioning tube (24) is installed at the end of the telescopic rod (22) away from the sleeve (21); the positioning tube (24) is parallel to the base point tube (20).

7. A multi-functional leveling and positioning device for tunnel steel arch frames according to claim 5, characterized in that, There are two groups of the first tracks (5) and the second tracks (7) respectively, and they are distributed in a cross shape; there are three groups of the foot screw adjusters (3) and they are installed at the bottom of the upper base (2) in a triangular shape; the positioning piles (8) are distributed in a rectangle.

8. A multi-functional leveling and positioning device for tunnel steel arch frames according to claim 5, characterized in that A position hole is opened upward in the center line base block (11), and the position hole is suitable for being detachably connected to the base point tube (20) upward, a center hole is opened on the backing plate (9), and the positioning tube (24) is suitable for being movably inserted into the center hole.

9. A method for using the multi-functional leveling and positioning device for tunnel steel arch frames as described in claim 8, characterized in that, It includes the following steps: Step 1: First, according to the positions of the connection holes reserved on the connecting steel plate (18) of the steel arch frame (17), by adjusting the positions of the first chute (4) and the first track (5), and the second chute (6) and the second track (7), the positioning pile (8) can just be inserted into the connection holes of the connecting steel plate (18) of the steel arch frame (17); Step 2: Then, by measuring and positioning the position of the first steel arch frame (17), place the backing plate (9) on the backing plate, and by adjusting the foot screw adjuster (3), make the bubble in the level (13) centered; Step 3: Finally, place the steel arch frame (17) on the backing plate (9), make the positioning pile (8) just insert into the connection hole of the connecting steel plate (18), and turn on the laser emitter (10), and control the verticality of the steel arch frame (17) by checking the distance between the same side flange plate (19) of the steel arch frame (17) and the laser beam; Step 4: After the installation of the first steel arch frame (17) is completed, according to the designed spacing between the steel arch frames (17), adjust the length of the telescopic rod (22), and use the L-shaped quick tightening wrench bolt (23) for fixation; insert the base point pipe (20) into the center line base point block (11), and closely attach the sleeve (21) to the side of the upper base (2) to ensure the position of the next steel arch frame (17) and the previous steel arch frame (17); Step 5: Then place the backing plate (9) with the adjusted positioning pile (8) at the position of the positioning pipe (24), insert the positioning pipe (24) into the center base point of the next backing plate (9), and the positioning of the next steel pipe frame can be completed, and then install it according to the installation of the first arch frame; Step 6: When the lower guide is excavated, after excavation, remove the backing plate from the connecting steel plate (18), and then connect the next section of the steel arch frame (17).

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