Tunnel pre-supporting protection pipe curtain steel pipe water stop lock catch structure

Abstract

The utility model belongs to the technical field of lock catch pipe roofs, and particularly relates to a tunnel pre-supporting pipe roofing steel pipe water stop lock catch structure which comprises a plurality of pipe bodies, the left side of each pipe body is fixedly connected with a first lock catch, and the right side of each pipe body is fixedly connected with a second lock catch. When grouting is conducted in the pipe body, cement paste enters the gap between the first lock catch and the second lock catch through the grouting holes in the side wall of the pipe body, so that the gap between the first lock catch and the second lock catch is filled with the high-pressure cement paste, the water stopping effect is achieved after the high-pressure cement paste is condensed, the structural rigidity can also be improved, and the problem that when a tunnel pre-supporting pipe curtain steel pipe is used, the water stopping effect is poor is solved. The problems that water flow permeation and leakage are prone to occurring at the connecting positions of steel pipes, the inner wall of a tunnel is prone to being eroded, the structural strength is reduced, even collapse or collapse of a structural part is caused, and the stability and safety of the tunnel are threatened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of locking buckle pipe curtains, in particular to a tunnel pre-supporting pipe curtain steel pipe water-stopping locking buckle structure. Background Art

[0002] Tunnel pre-support pipe curtain steel pipe is a structural material used in underground tunnel engineering, which has important supporting and protective functions. It is usually made of high-strength steel, which is durable and corrosion-resistant. Tunnel pre-support pipe curtain steel pipe is widely used in underground tunnel engineering, and it mainly has the following functions: Structural support: As a temporary or permanent supporting material, the tunnel pre-support pipe curtain steel pipe can withstand the pressure of underground soil and rock to ensure the stability of the tunnel structure. During the tunnel construction process, it can support the slope and protect the working surface to prevent the collapse of the tunnel. Protective function: The pre-support pipe curtain steel pipe has the ability to resist soil pressure and can effectively prevent the collapse of soil and rock in tunnel engineering. It can provide a safe working environment for construction workers and protect them from the threat of underground pressure. Temporary guiding function: In shield tunnel construction, the pre-support pipe curtain steel pipe can also be used as a guiding system to guide and control the forward direction of the shield machine. It can ensure the accurate construction of the shield machine and ensure the quality and progress of the tunnel. Durability and reliability: Pre-support pipe curtain steel pipes are often made of high-strength, corrosion-resistant steel, have a long service life, and can maintain stable and reliable performance in harsh underground environments. They can withstand loads and pressures under different geological conditions and effectively protect the tunnel structure from damage. However, when the tunnel pre-support pipe curtain steel pipes are used, water infiltration and leakage are prone to occur at the steel pipe joints, which can easily erode the inner wall of the tunnel, resulting in reduced structural strength, and even causing collapse or collapse of the structural part, posing a threat to the stability and safety of the tunnel. Utility Model Content

[0003] The purpose of the utility model is to provide a tunnel pre-support pipe curtain steel pipe water-stop lock structure, which solves the problem that when the tunnel pre-support pipe curtain steel pipe is used, water flow penetration and leakage are easy to occur at the steel pipe connection, which is easy to erode the inner wall of the tunnel, resulting in reduced structural strength and even causing collapse or landslide of the structural part, posing a threat to the stability and safety of the tunnel.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tunnel pre-support pipe curtain steel pipe water-stop lock structure, comprising a pipe body, wherein there are multiple pipe bodies, each of which is fixedly connected to a first lock on the left side, and each of which is fixedly connected to a second lock on the right side, wherein the first lock on the left side of one of the pipe bodies contacts the second lock on the right side of another pipe body, and there are two second locks on each of the pipe bodies, and a second connecting seat is fixedly connected to the side away from each other of the two second locks, and the design of the second connecting seat can limit the first lock, and a grouting hole is opened inside the inner wall on the right side of each pipe body, and a grouting conduit is fixedly connected to the back side of each of the pipe bodies.

[0005] Preferably, there are two first lock buckles on each of the tube bodies, and a first connecting seat is fixedly connected to one side of the two first lock buckles that are close to each other. The design of the first connecting seat can limit the second lock buckle.

[0006] Preferably, the interior of the second connecting seat is connected to a threaded rod via a thread, the interior of the first connecting seat is slidably connected to a second lock buckle, and the interior of the second connecting seat is slidably connected to a first lock buckle, so that the first lock buckle and the second lock buckle can remain stable after being connected.

[0007] Preferably, the grouting hole is connected to the gap between the first locking buckle and the second locking buckle, so that when grouting is performed into the pipe body, cement slurry can enter the gap between the first locking buckle and the second locking buckle through the grouting hole on the side wall of the pipe body.

[0008] Preferably, there are two grouting conduits on the back of each pipe body, and the two grouting conduits are symmetrically distributed on the pipe body. Through the design of the grouting conduits, secondary grouting can be used to supplement the water-stopping effect of the locking device when it is poor.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] 1. When grouting is injected into the pipe body, the utility model allows cement slurry to enter the gap between the first lock buckle and the second lock buckle through the grouting hole on the side wall of the pipe body, so that the gap between the first lock buckle and the second lock buckle is filled with high-pressure cement slurry, which achieves a water-stopping effect after solidification, and can also improve the structural rigidity, thereby solving the problem that when the steel pipe of the tunnel pre-support pipe curtain is used, water infiltration and leakage are prone to occur at the connection of the steel pipe, which is easy to erode the inner wall of the tunnel, resulting in reduced structural strength, and even causing collapse or landslide of the structural part, posing a threat to the stability and safety of the tunnel.

[0011] 2. The utility model can guide and limit the second lock buckle by providing a first connecting seat, and can guide and limit the first lock buckle by providing a second connecting seat, so that the pipe body can remain stable, that is, the first lock buckle and the second lock buckle can remain stable during grouting, and a grouting conduit can be provided to supplement the secondary grouting when the water-stopping effect of the lock buckle device is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0013] Figure 2 For the utility model Figure 1 A magnified top view of the local structure;

[0014] Figure 3 For the utility model Figure 2 A front cross-sectional view of

[0015] Figure 4 For the utility model Figure 3 A-section structure enlarged view.

[0016] In the figure: 1. pipe body; 2. first locking buckle; 3. second locking buckle; 4. first connecting seat; 5. second connecting seat; 6. grouting hole; 7. grouting conduit. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 A tunnel pre-support pipe curtain steel pipe water-stop lock buckle structure, comprising a pipe body 1, the number of pipe bodies 1 is multiple, the left side of each pipe body 1 is fixedly connected with a first lock buckle 2, the right side of each pipe body 1 is fixedly connected with a second lock buckle 3, the first lock buckle 2 on the left side of one pipe body 1 contacts the second lock buckle 3 on the right side of another pipe body 1, the number of first lock buckles 2 on each pipe body 1 is two, and the side where the two first lock buckles 2 are close to each other is fixedly connected with a first connecting seat 4, and the design of the first connecting seat 4 can limit the second lock buckle 3,

[0019] See also Figure 2-4The first connecting seat 4 is internally slidably connected with the second lock buckle 3, and the second connecting seat 5 is internally slidably connected with the first lock buckle 2, which can keep the first lock buckle 2 stable after being connected to the second lock buckle 3. There are two second lock buckles 3 on each pipe body 1, and the side where the two second lock buckles 3 are away from each other is fixedly connected with the second connecting seat 5. Through the design of the second connecting seat 5, the first lock buckle 2 can be limited. A grouting hole 6 is opened inside the inner wall of the right side of each pipe body 1, and the aperture of the grouting hole 6 is Φ10m, and the longitudinal spacing is 300m.

[0020] See also Figure 2-4 The grouting hole 6 is connected to the gap between the first lock buckle 2 and the second lock buckle 3. When grouting into the pipe body 1, cement slurry can enter the gap between the first lock buckle 2 and the second lock buckle 3 through the grouting hole 6 on the side wall of the pipe body 1. The back of each pipe body 1 is fixedly connected with a grouting conduit 7. The number of grouting conduits 7 on the back of each pipe body 1 is two, and the two grouting conduits 7 are symmetrically distributed on the pipe body 1. Through the design of the grouting conduit 7, it can be used to supplement the secondary grouting when the water-stopping effect of the locking device is poor.

[0021] The specific implementation process of the utility model is as follows: when in use, by connecting the first lock buckle 2 on one of the tube bodies 1 with the second lock buckle 3 of the other tube body 1, the first lock buckle 2 is slid into the second connection seat 5 on the second lock buckle 3, and the second lock buckle 3 is slid into the first connection seat 4 on the first lock buckle 2, the first lock buckle 2 and the second lock buckle 3 can be positioned, so that the first lock buckle 2 cannot move, and the first lock buckle 2 and the second lock buckle 3 can be kept stable during grouting;

[0022] When grouting is injected into the pipe body 1, cement slurry enters the gap between the lock buckles through the grouting holes 6 on the side wall of the pipe body 1. The grouting pressure is 0.2-0.5MPa, so that the slurry fills the gap between the first lock buckle 2 and the second lock buckle 3. The gap between the first lock buckle 2 and the second lock buckle 3 is filled with high-pressure cement slurry. After solidification, it achieves a water-stopping effect and can also improve the structural rigidity.

[0023] 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 tunnel pre-support pipe curtain steel pipe water-stop lock structure, comprising a pipe body (1), characterized in that: There are a plurality of tube bodies (1), the left side of each tube body (1) is fixedly connected to a first lock buckle (2), and the right side of each tube body (1) is fixedly connected to a second lock buckle (3), the first lock buckle (2) on the left side of one tube body (1) contacts the second lock buckle (3) on the right side of another tube body (1), there are two second lock buckles (3) on each tube body (1), a second connecting seat (5) is fixedly connected to the sides of the two second lock buckles (3) that are away from each other, a grouting hole (6) is opened inside the inner wall of the right side of each tube body (1), and a grouting conduit (7) is fixedly connected to the back side of each tube body (1).

2. A tunnel pre-support pipe curtain steel pipe water-stop lock structure according to claim 1, characterized in that: There are two first locking buckles (2) on each of the tube bodies (1), and a first connecting seat (4) is fixedly connected to one side of the two first locking buckles (2) that are close to each other.

3. A tunnel pre-support pipe curtain steel pipe water-stop lock structure according to claim 2, characterized in that: The first connecting seat (4) is internally slidably connected to a second lock buckle (3), and the second connecting seat (5) is internally slidably connected to a first lock buckle (2).

4. A tunnel pre-support pipe curtain steel pipe water-stop lock structure according to claim 1, characterized in that: The grouting hole (6) is in communication with the gap between the first lock buckle (2) and the second lock buckle (3).

5. The waterproof locking structure for steel pipes of tunnel pre-support pipe curtain according to claim 1 is characterized by: The number of grouting conduits (7) on the back side of each pipe body (1) is two, and the two grouting conduits (7) are symmetrically distributed on the pipe body (1).

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