Supporting device for tunnel lining

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a supporting device for tunnel linings, which comprises a plurality of groups of supporting structures, the supporting structures are arranged between two adjacent linings, each supporting structure comprises an abutting assembly, a sleeve and shaft pieces arranged on two sides of the sleeve, and the shaft pieces are slidably connected in the sleeves. One end of the shaft piece is hinged to the lining, the abutting assembly comprises an abutting block and a connecting rod, the connecting rod penetrates through the sleeve, and one end of the connecting rod is connected with the abutting block. According to the lining supporting device, after the shaft piece and the sleeve are connected, the center position of the sleeve is aligned with the position of a connecting seam of the adjacent linings, the shaft piece, the support and the sleeve enable the adjacent linings to be pressed tightly, the pressure of surrounding rock on the linings can be balanced to the maximum extent, the gap between the linings is prevented from becoming large, and the abutting block is arranged at the position of the connecting point of the adjacent linings. The abutting blocks tightly press the gaps between the adjacent linings, and the situation that the gaps between the adjacent linings become large due to surrounding rock pressure is further avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel construction technical field, especially a kind of support device of tunnel lining. BACKGROUND

[0002] In tunnel construction, support device needs to be installed at the position of surrounding rock in tunnel, for supporting surrounding rock, preventing breakage, in prior art, it is designed according to the arc of tunnel, and integral support device is used, integral support device has strong stability, but due to the continuous pressure of surrounding rock on support device, if damage occurs at one position of integral support device, the whole cannot be used, it is difficult to guarantee stable support, and some prior art uses split support device, and the joints at splicing position are enlarged due to the pressure of surrounding rock, and gravel can fall into tunnel from joint, which not only affects the quality of support, but also brings safety hazard to people in tunnel. SUMMARY

[0003] In view of the technical problems in the background art, the purpose of the utility model is to provide a kind of support device of tunnel lining, to solve the problems raised in the above background art.

[0004] To achieve the above-mentioned purpose, the technical scheme provided by the utility model is as follows:

[0005] A kind of support device of tunnel lining, comprising several groups of support structure, the support structure is arranged between two adjacent linings, the support structure includes abutting component, sleeve and shaft piece arranged on both sides of sleeve, the shaft piece is slidably connected in the sleeve, one end of the shaft piece is hinged to the lining, the abutting component includes abutting block and connecting rod, the connecting rod passes through the sleeve, one end of the connecting rod is connected with the abutting block, and the abutting block is arranged at the connection point position of adjacent linings.

[0006] As a preferred, the support structure further includes a support, one end of the shaft piece is hinged to the support, and the support is connected to the lining by bolts.

[0007] As a preferred, the support structure includes at least two supports and two shaft pieces.

[0008] As a preferred, a plurality of connecting holes I are provided on the shaft piece, and adjacent connecting holes I are equidistantly arranged, connecting holes II are provided on the sleeve, the connecting holes I and the connecting holes II are aligned, and a connecting piece is detachably arranged in the connecting holes I and the connecting holes II.

[0009] As a preferred, a connecting plate is detachably arranged on the support, and the connecting plate is arranged between adjacent support structures.

[0010] Preferably, the middle part of the sleeve is provided with a socket, the socket penetrates the sleeve, and the connecting rod is arranged in the socket.

[0011] Preferably, the connecting rod is provided with a threaded segment, and the inside of the socket is provided with an internal thread, and the threaded segment and the internal thread are arranged in cooperation.

[0012] Preferably, the abutting block is provided with a clamping port, one end of the connecting rod extends into the clamping port, and the connecting rod can rotate in the clamping port.

[0013] The utility model has the advantages and beneficial effects that:

[0014] In the utility model, the shaft piece can rotate around the support, two shaft pieces are arranged on the two sides of the sleeve, the central position of the sleeve is aligned with the position of the adjacent lining joint after the shaft piece and the sleeve are connected, the shaft piece, the support and the sleeve make the adjacent lining be compressed, the pressure of the surrounding rock on the lining can be balanced to the greatest extent, the gap between the adjacent linings is prevented from becoming larger, the abutting block is arranged at the connecting position of the adjacent linings, the gap between the adjacent linings is compressed by the abutting block, and the situation that the gap between the adjacent linings becomes larger due to the pressure of the surrounding rock is further avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 The utility model provides a kind of connection position schematic view of the support device of tunnel lining;

[0016] Fig. 2 The utility model provides a kind of structure diagram of the support device of tunnel lining;

[0017] Fig. 3 The utility model provides a kind of support structure explosion view of the support device of tunnel lining;

[0018] Fig. 4 The utility model provides a kind of sectional view of the support device of tunnel lining.

[0019] Reference signs: 1-surrounding rock, 2-lining, 3-support structure, 31-support, 32-shaft piece, 321-connection hole I, 33-sleeve, 331-connection hole II, 332-socket, 333-connecting piece, 4-abutting assembly, 41-connecting rod, 42-abutting block, 421-clamping port, 5-connection plate. DETAILED DESCRIPTION

[0020] To make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model below, and obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Example

[0023] like Figs. 1-4 As shown, a tunnel lining support device includes several sets of support structures 3. The support structures 3 are disposed between two adjacent linings 2. Each support structure 3 includes an abutment component 4, a support 31, a sleeve 33, and shafts 32 disposed on both sides of the sleeve 33. Each support structure 3 includes at least two supports 31 and two shafts 32. The supports 31 and the linings 2 are detachably connected by bolts. One support 31 is disposed at the middle position of one lining 2, and the other support 31 is disposed at the middle position of the other lining 2. The threaded holes are capable of connecting with… Lining 2 is prefabricated together and can also be installed by subsequent drilling. One end of the shaft 32 is hinged to the support 31. Specifically, the support 31 has a circular slot in the middle, and one end of the shaft 32 has an annular structure that extends into the slot. A rotating shaft is inserted between the support 31 and the shaft 32, so that the shaft 32 can rotate around the support 31. Since the curvature of the surrounding rock 1 is not the same at every position, the hinged method can keep the shaft 32 in a relative position, ensuring the stability of the connection, and is also more convenient for disassembly and assembly. The sleeve 33 has a hollow structure, and the shaft 32 is slidably connected inside the sleeve 33. The two shafts 32 are respectively set on both sides of the sleeve 33. When the shaft 32 and the sleeve 33 are connected, the center position of the sleeve 33 is aligned with the joint position of the adjacent lining 2. When the sleeve 33 and the shaft 32 are connected, the two shafts 32 are opposite each other. The shaft 32, the support 31 and the sleeve 33 compress the adjacent lining 2, which can maximize the balance of the pressure of the surrounding rock 1 on the lining 2 and prevent the gap between the linings 2 from becoming larger.

[0024] like Figs. 1-4As shown, the shaft 32 is provided with a plurality of connecting holes I 321, the adjacent connecting holes I 321 are equidistantly arranged, the sleeve 33 is provided with connecting holes II 331, the connecting holes I 321 and the connecting holes II 331 are arranged in alignment, and the connecting pieces 333 are detachably arranged in the connecting holes I 321 and the connecting holes II 331. The connecting pieces 333 are bolts and are threadedly connected with the connecting holes I 321 and the connecting holes II 331. When the shaft 32 is inserted into the sleeve 33 to a proper position, the connecting holes I 321 and the connecting holes II 331 are aligned, and the connecting pieces 333 are arranged in the connecting holes I 321 and the connecting holes II 331, so that the sleeve 33 and the shaft 32 are fixed. This mode not only can enhance the stability of the connection, but also can adjust the distance between the supports 31, so as to be applicable to the lining 2 with different radian.

[0025] As shown in the figure, Figs. 1-4 The plurality of support structures 3 are arranged in parallel on the lining 2, the support 31 is detachably provided with a connecting plate 5, the connecting plate 5 is arranged between the adjacent support structures 3, the connecting plate 5 and the support 31 are connected by bolts, the connecting plate 5 connects the adjacent two support structures 3 into a whole, the plurality of support structures 3 jointly support the lining 2, and the damage of the surrounding rock 1 to the lining 2 is greatly prevented, so that the lining 2 can be more stably supported in the tunnel.

[0026] As shown in the figure, Figs. 1-4 The abutting assembly 4 includes an abutting block 42 and a connecting rod 41. The middle part of the sleeve 33 is provided with a bushing 332 which penetrates the sleeve 33. The connecting rod 41 is arranged in the bushing 332. The connecting rod 41 is provided with a threaded section. The bushing 332 is internally provided with an internal thread. The threaded section and the internal thread are arranged in cooperation, so that the position of the connecting rod 41 can be adjusted in the bushing 332. The connecting rod 41 penetrates the sleeve 33. When the connecting rod 41 rotates in the bushing 332, the position of the connecting rod 41 can be adjusted. One end of the connecting rod 41 is inserted into the abutting block 42. The abutting block 42 is arranged at the connecting point position of the adjacent linings 2. The abutting block 42 compresses the gap between the adjacent linings 2, so as to further avoid the situation that the gap between the adjacent linings 2 becomes large due to the pressure of the surrounding rock 1. The abutting block 42 is provided with a clamping port 421. One end of the connecting rod 41 is inserted into the clamping port 421. The connecting rod 41 can rotate in the clamping port 421. When the position of the connecting rod 41 is adjusted, the abutting block 42 moves synchronously with the connecting rod 41 at one end of the connecting rod 41. This mode can adjust the acting force between the abutting block 42 and the lining 2 according to different tunnel environments.

[0027] Working principle: after the lining 2 is erected around the tunnel surrounding rock 1, the support 31 is connected on the middle part of the lining 2 according to the shape of the lining 2, so that the support 31 and the lining 2 are fixedly connected, the connecting plate 5 is installed between the adjacent supports 31 through bolts, the adjacent support structures 3 are connected through the connecting plate 5, the shaft 32 on one side is inserted into one end of the sleeve 33, the shaft 32 on the other side is inserted into the other end of the sleeve 33, the connecting hole I 321 and the connecting hole II 331 are aligned according to the shape of the lining 2, the connecting piece 333 is arranged in the connecting hole I 321 and the connecting hole II 331, so that the sleeve 33 and the shaft 32 are fixed, the connecting rod 41 is inserted into the jack 332, the abutting block 42 is connected at one end of the connecting rod 41, the connecting rod 41 is inserted into the clamping port 421 of the abutting block 42, the position of the connecting rod 41 in the sleeve 33 is adjusted, so that the connecting rod 41 abuts the abutting block 42 at the connecting position between the adjacent linings 2.

[0028] The preferred embodiment of the utility model has been described, and is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A support arrangement for a tunnel lining, characterised in that, The support structure comprises a plurality of sets of support structures arranged between two adjacent linings, the support structure comprising an abutting assembly, a sleeve and shafts arranged on both sides of the sleeve, the shafts being slidably connected in the sleeve, one end of the shaft being hinged to the lining, the abutting assembly comprising an abutting block and a connecting rod, the connecting rod passing through the sleeve, one end of the connecting rod being connected to the abutting block, and the abutting block being arranged at the connecting point of the adjacent linings.

2. A support arrangement for a tunnel lining as claimed in claim 1, characterised in that: The support structure further comprises a support, one end of the shaft being hinged to the support, and the support being connected to the lining by bolts.

3. A support arrangement for a tunnel lining as claimed in claim 2, characterised in that: The support structure comprises at least two supports and two shafts.

4. A support arrangement for a tunnel lining as claimed in claim 1, characterised in that: A plurality of connecting holes I are arranged on the shaft, adjacent connecting holes I being equidistantly arranged, connecting holes II are arranged on the sleeve, the connecting holes I and the connecting holes II being arranged in alignment, and connecting pieces being detachably arranged in the connecting holes I and the connecting holes II.

5. A support arrangement for a tunnel lining as claimed in claim 3, characterised in that: A connecting plate is detachably arranged on the support, the connecting plate being arranged between adjacent support structures.

6. A support arrangement for a tunnel lining as claimed in claim 1, characterised in that: A socket is arranged in the middle of the sleeve, the socket penetrating the sleeve, and the connecting rod being arranged in the socket.

7. A support arrangement for a tunnel lining as claimed in claim 6, characterised in that: A threaded section is arranged on the connecting rod, and an internal thread is arranged in the socket, the threaded section and the internal thread being arranged in cooperation.

8. A support arrangement for a tunnel lining as claimed in claim 1, characterised in that: A clamping port is arranged on the abutting block, one end of the connecting rod extending into the clamping port, and the connecting rod being capable of rotating in the clamping port.

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