Unsymmetrical pressure tunnel reinforcing device

Abstract

The utility model discloses a bias tunnel reinforcing device, which belongs to the technical field of tunnel reinforcement and comprises a supporting steel plate, the supporting steel plate is fixedly mounted in a tunnel, a plurality of groups of mounting mechanisms are fixedly mounted on the bias side inner wall of the supporting steel plate, and a connecting piece is fixedly mounted on each group of mounting mechanism. Each mounting mechanism is provided with an anchor rod, and one end of each anchor rod penetrates through the corresponding supporting steel plate and then is anchored to the deep position of the tunnel. One end of the anchor rod is connected to the connecting block, the supporting steel plate can be tightly attached to the inner wall of the tunnel, the stability of the supporting steel plate is improved, the first transverse plates, the second transverse plates and the anchor rods are arranged on the bias side of the supporting steel plate and can be matched with one another, and the bias tunnel part is reinforced; therefore, the bias load resisting capacity of the tunnel structure is improved, the problems of uneven deformation, cracking, even collapse and the like of the tunnel due to bias load are prevented, and the overall stability of the tunnel is kept.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel reinforcement, and in particular relates to a biased tunnel reinforcement device. Background Art

[0002] A biased tunnel refers to a tunnel in which the surrounding rock pressure of the tunnel is obviously uneven due to terrain, geology or construction. This uneven pressure may have an adverse effect on the stability and safety of the tunnel, so reinforcement measures are needed. The Chinese patent announcement number CN216950383U discloses a combined reinforcement device for a biased tunnel, including a retaining wall, a concrete layer, an I-beam and a channel steel; the retaining wall is arranged on the shallow buried side of the tunnel; anchor rods are arranged in the surrounding rock on the deep buried side of the tunnel, and anchor cables are arranged in the surrounding rock on the deep buried side of the tunnel; an I-beam is erected at the tail end of the anchor rod, and the I-beam is arranged along the circumference of the inner wall of the tunnel; the channel steel is welded to the I-beam perpendicular to the I-beam, and the channel steel is arranged along the direction of the tunnel, and a concrete layer is sprayed on the inner wall of the tunnel; a through hole is arranged in the channel steel corresponding to the anchor cable, and the tail end of the anchor cable passes through the corresponding through hole on the channel steel and is fastened by the anchor head. The utility model has a simple structure and is convenient to construct. It supports the shallow buried side and the deep buried side of the biased tunnel, coordinates with the force of the tunnel, and uses anchor cables to reinforce the deep surrounding rock, which is more conducive to the stability of the biased tunnel.

[0003] The problem with the prior art is that the above-mentioned biased tunnel reinforcement device is reinforced by I-beams and anchor cables, but there is no transverse support structure inside the I-beams, which leads to uneven force on the I-beams between the biased side anchor cables and the support strength needs to be further improved. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a biased tunnel reinforcement device, which has the advantages of high strength, good supporting force and uniform force. It solves the problem that the existing biased tunnel reinforcement device is reinforced by the combination of I-beams and anchor cables, but there is no transverse supporting structure inside the I-beams, which leads to uneven force on the I-beams between the biased side anchor cables.

[0005] The utility model is implemented as follows: a biased tunnel reinforcement device includes a support steel plate, which is fixedly installed inside the tunnel, and a plurality of groups of mounting mechanisms are fixedly installed on the inner wall of the biased side of the support steel plate, and a connecting piece is fixedly installed on each group of the mounting mechanisms, and both ends of each group of the connecting pieces are connected to a first cross plate and a second cross plate, and each of the mounting mechanisms is provided with an anchor rod, and one end of the anchor rod passes through the support steel plate and is anchored deep in the tunnel.

[0006] As a preferred embodiment of the present invention, the mounting mechanism includes a mounting seat and a mounting block, the four corners of the mounting seat are fixedly mounted on the inner wall of the supporting steel plate by bolts, and the mounting block is fixedly mounted in the middle of one side of the mounting seat.

[0007] As a preferred embodiment of the utility model, reinforcing ribs are provided on both sides of the mounting block, connecting blocks are fixedly connected on both sides of the mounting seat, one end of the anchor rod is penetrated through the connecting block, and an anchor head is provided on the end.

[0008] As a preferred embodiment of the present invention, the connecting member is composed of a connecting rod and two arc-shaped insert rods, the two arc-shaped insert rods are respectively and integrally arranged at both ends of the connecting rod, and the connecting rod is fixedly installed inside the mounting block.

[0009] As a preferred embodiment of the utility model, the first transverse plate and the second transverse plate are both provided with a first plug hole, the support steel plate is provided with a second plug hole matched with the first plug hole, and the arc-shaped plug rod passes through the first plug hole and is plugged into the second plug hole.

[0010] As a preferred embodiment of the present invention, both ends of the first transverse plate and the second transverse plate are provided with a first plug-in portion and a second plug-in portion, and adjacent first transverse plates and second transverse plates are spliced ​​end to end.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model can improve the stability of the installation of the mounting seat by arranging bolts at the four corners of the mounting seat, and can improve the strength of the mounting block by arranging reinforcing ribs on both sides of the mounting block.

[0013] 2. The utility model connects one end of the anchor rod to the connecting block, so that the supporting steel plate can be closely attached to the inner wall of the tunnel, thereby improving the stability of the supporting steel plate and ensuring the tightness of the connection between the connecting piece and the first horizontal plate and the second horizontal plate.

[0014] 3. The utility model can improve the installation stability of the first horizontal plate and the second horizontal plate by setting multiple groups of connecting parts. With the fixing of the mounting seat and the anchor rod, the plug-in operation of the arc-shaped plug rod is completed at the same time, which is easy to use and has a simple structure.

[0015] 4. The utility model arranges a plurality of groups of first and second transverse plates and anchor rods on the biased side of the supporting steel plate, which can cooperate with each other to reinforce the biased tunnel part, thereby improving the ability of the tunnel structure to resist the biased load, preventing the tunnel from producing uneven deformation, cracking or even collapse due to the bias, and maintaining the overall stability of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0018] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0019] Figure 4 For the utility model Figure 3 A magnified view of the structure at B in the middle;

[0020] Figure 5 It is an exploded view of the local structure of the utility model.

[0021] In the figure: 1. supporting steel plate; 11. second plug hole; 2. mounting mechanism; 21. mounting seat; 22. mounting block; 23. reinforcing rib; 24. connecting block; 25. bolt; 3. first transverse plate; 31. second transverse plate; 32. first plug-in portion; 33. second plug-in portion; 34. first plug hole; 4. connecting piece; 41. connecting rod; 42. arc plug rod; 5. anchor rod; 51. anchor head. DETAILED DESCRIPTION

[0022] In order to further understand the content, features and effects of the utility model, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0023] The structure of the utility model is described in detail below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 5 As shown, an embodiment of the utility model provides a biased tunnel reinforcement device, including a support steel plate 1, which is fixedly installed inside the tunnel, and a plurality of groups of mounting mechanisms 2 are fixedly installed on the inner wall of the biased side of the support steel plate 1, and a connecting member 4 is fixedly installed on each group of mounting mechanisms 2, and a first cross plate 3 and a second cross plate 31 are connected at both ends of each group of connecting members 4, and an anchor rod 5 is arranged on each mounting mechanism 2, and one end of the anchor rod 5 passes through the support steel plate 1 and is anchored deep in the tunnel.

[0025] In the present application, by setting a number of first cross plates 3 and anchor rods 5 on the biased side of the supporting steel plate 1, it is helpful to adjust the stress state of the tunnel structure, make the stress under the biased condition more uniform, reduce local stress concentration, enhance the resistance of the tunnel, reduce the risk of safety accidents in the tunnel under the action of bias, and ensure the safety of vehicles and personnel in the tunnel.

[0026] Furthermore, the mounting mechanism 2 includes a mounting seat 21 and a mounting block 22. The four corners of the mounting seat 21 are fixedly mounted on the inner wall of the supporting steel plate 1 by bolts 25. The mounting block 22 is fixedly mounted in the middle of one side of the mounting seat 21. Reinforcing ribs 23 are provided on both sides of the mounting block 22. Connecting blocks 24 are fixedly connected on both sides of the mounting seat 21. One end of the anchor rod 5 is penetrated and arranged in the connecting block 24, and an anchor head 51 is provided at the end.

[0027] In the present application, the mounting seat 21 is arranged between the adjacent first transverse plates 3 and the second transverse plates 31. By arranging bolts 25 at the four corners of the mounting seat 21, the stability of the installation of the mounting seat 21 can be improved. By arranging reinforcing ribs 23 on both sides of the mounting block 22, the strength of the mounting block 22 can be improved. By connecting one end of the anchor rod 5 to the connecting block 24, the supporting steel plate 1 can be tightly attached to the inner wall of the tunnel, thereby improving the stability of the supporting steel plate 1 and ensuring the tightness of the connection between the connecting piece 4 and the first transverse plate 3 and the second transverse plate 31.

[0028] Furthermore, the connecting member 4 is composed of a connecting rod 41 and two arc-shaped plug rods 42. The two arc-shaped plug rods 42 are respectively integrated at both ends of the connecting rod 41. The connecting rod 41 is fixedly installed inside the mounting block 22. The first cross plate 3 and the second cross plate 31 are both provided with a first plug hole 34. The supporting steel plate 1 is provided with a second plug hole 11 that is compatible with the first plug hole 34. The arc-shaped plug rod 42 passes through the first plug hole 34 and is plugged into the second plug hole 11.

[0029] In the present application, arc-shaped plug rods 42 are provided at both ends of the connecting rod 41, and the arc-shaped plug rods 42 are respectively plugged into the two second plug holes 11, so that the first cross plate 3 and the second cross plate 31 can be fitted on the inner wall of the supporting steel plate 1. By providing multiple sets of connecting parts 4, the installation stability of the first cross plate 3 and the second cross plate 31 can be improved, and along with the fixation of the mounting seat 21 and the anchor rod 5, the plug-in operation of the arc-shaped plug rod 42 is completed at the same time, which is easy to use and has a simple structure.

[0030] Furthermore, both ends of the first transverse plate 3 and the second transverse plate 31 are provided with a first plug-in portion 32 and a second plug-in portion 33 , and adjacent first transverse plates 3 and second transverse plates 31 are spliced ​​end to end.

[0031] In the specific setting, the first cross plate 3 and the second cross plate 31 have the same structure. Taking the first cross plate 3 as an example, the adjacent first cross plates 3 are spliced ​​by the first plug-in portion 32 and the second plug-in portion 33 to form a long strip, which is horizontally arranged on the inner wall of the supporting steel plate 1, which can improve the strength of the supporting steel plate 1 and avoid local deformation. By setting up several groups of first cross plates 3 and second cross plates 31 and anchor rods 5, they can cooperate with each other to reinforce the biased tunnel part, thereby improving the ability of the tunnel structure to resist the biased load, preventing the tunnel from producing uneven deformation, cracking or even collapse due to bias, and maintaining the overall stability of the tunnel.

[0032] The working principle of this utility model:

[0033] One end of the anchor rod 5 is inserted into the connecting block 24, passes through the first transverse plate 3 and the supporting steel plate 1, and then anchored to the depth of the tunnel. The mounting seat 21 is further reinforced to the supporting steel plate 1 by bolts 25. During the fixing process of the mounting seat 21, the adjacent first transverse plates 3 and second transverse plates 31 are spliced, and then the two arc-shaped plug rods 42 are correspondingly passed through the first insertion hole 34 and inserted into the second insertion hole 11 to fix the first transverse plate 3 and the second transverse plate 31. Through several groups of first transverse plates 3 and second transverse plates 31 and anchor rods 5, they can cooperate with each other to reinforce the biased tunnel part, thereby improving the ability of the tunnel structure to resist the biased load, preventing the tunnel from uneven deformation, cracking or even collapse due to the bias, and maintaining the overall stability of the tunnel.

[0034] To sum up: this biased tunnel reinforcement device, by connecting one end of the anchor rod 5 to the connecting block 24, can make the supporting steel plate 1 close to the inner wall of the tunnel, improve the stability of the supporting steel plate 1, and can ensure the tightness of the connection between the connecting piece 4 and the first cross plate 3 and the second cross plate 31. By setting up multiple groups of connecting pieces 4, the stability of the installation of the first cross plate 3 and the second cross plate 31 can be improved. With the fixation of the mounting seat 21 and the anchor rod 5, the plug-in operation of the arc-shaped plug rod 42 is completed at the same time. It is easy to use and has a simple structure. By setting up several groups of first cross plates 3 and second cross plates 31 and anchor rods 5, they can cooperate with each other to reinforce the biased tunnel part, thereby improving the ability of the tunnel structure to resist the biased load, preventing the tunnel from producing uneven deformation, cracking or even collapse due to bias, and maintaining the overall stability of the tunnel.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biased tunnel reinforcement device, comprising a support steel plate (1), characterized in that: The support steel plate (1) is fixedly installed inside the tunnel. A plurality of groups of mounting mechanisms (2) are fixedly installed on the inner wall of the biasing side of the support steel plate (1). A connecting piece (4) is fixedly installed on each group of the mounting mechanisms (2). Both ends of each group of the connecting pieces (4) are connected to a first transverse plate (3) and a second transverse plate (31). An anchor rod (5) is arranged on each of the mounting mechanisms (2). One end of the anchor rod (5) passes through the support steel plate (1) and is anchored deep in the tunnel.

2. A biased tunnel reinforcement device as claimed in claim 1, characterized in that: The mounting mechanism (2) comprises a mounting seat (21) and a mounting block (22); the four corners of the mounting seat (21) are fixedly mounted on the inner wall of the supporting steel plate (1) by means of bolts (25); and the mounting block (22) is fixedly mounted in the middle of one side of the mounting seat (21).

3. A biased tunnel reinforcement device as claimed in claim 2, characterized in that: Reinforcing ribs (23) are provided on both sides of the mounting block (22), connecting blocks (24) are fixedly connected to both sides of the mounting seat (21), one end of the anchor rod (5) is inserted into the connecting block (24), and an anchor head (51) is provided at the end.

4. A biased tunnel reinforcement device as claimed in claim 2, characterized in that: The connecting member (4) is composed of a connecting rod (41) and two arc-shaped insert rods (42). The two arc-shaped insert rods (42) are respectively and integrally arranged at both ends of the connecting rod (41). The connecting rod (41) is fixedly installed inside the mounting block (22).

5. A biased tunnel reinforcement device as claimed in claim 4, characterized in that: The first transverse plate (3) and the second transverse plate (31) are both provided with a first insertion hole (34), the support steel plate (1) is provided with a second insertion hole (11) adapted to the first insertion hole (34), and the arc-shaped insertion rod (42) passes through the first insertion hole (34) and is inserted into the second insertion hole (11).

6. The biased tunnel reinforcement device according to claim 1, characterized in that: Both ends of the first transverse plate (3) and the second transverse plate (31) are provided with a first plug-in portion (32) and a second plug-in portion (33), and adjacent first transverse plates (3) and second transverse plates (31) are spliced ​​end to end.

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