Prestress supporting device based on synchronous construction of contact channel and shield

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a prestress supporting device based on synchronous construction of a contact channel and a shield, which comprises a shield tunnel, a duct piece is fixedly mounted on the shield tunnel, a supporting frame is fixedly connected to the surface of the duct piece, a first hydraulic cylinder is fixedly connected to the upper surface of the supporting frame, and a second hydraulic cylinder is fixedly connected to the lower surface of the supporting frame. A first hydraulic cylinder is fixedly connected to the surface of the supporting frame, a first supporting block is fixedly connected to a piston rod of the first hydraulic cylinder, a first inclined strut is fixedly connected to the surface of the supporting frame, the end, away from the supporting frame, of the first inclined strut is fixedly connected to the first hydraulic cylinder, and a second hydraulic cylinder is fixedly connected to the surface of the first inclined strut. According to the utility model, the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder and the fourth hydraulic cylinder are arranged on the supporting frame, and the first supporting block, the second supporting block, the third supporting block and the fourth supporting block are used for supporting all point positions of the duct piece, so that the duct piece dislocation caused by frost heaving force is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a prestressed support device based on synchronous construction of a communication channel and a shield. Background Art

[0002] In order to prevent collapse during excavation of the connecting channel, the soil will be frozen before excavation of the connecting channel. Usually, low-temperature liquid materials will be injected around the tunnel. However, the frost heave force outside the tunnel will cause the pipe segments inside the tunnel to be misaligned. Therefore, a prestressed support device based on the synchronous construction of the connecting channel and the shield is needed. Utility Model Content

[0003] The utility model aims to provide a prestressed support device based on synchronous construction of a communication channel and a shield machine, so as to solve the problem in the above-mentioned background technology that the frost heave force outside the tunnel may cause the pipe segments inside the tunnel to be misaligned.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solution, a prestressed support device based on the synchronous construction of a communication channel and a shield: comprising a shield tunnel, a pipe segment is fixedly installed on the shield tunnel, a support frame is fixedly connected to the surface of the pipe segment, a first hydraulic cylinder is fixedly connected to the upper surface of the support frame, a first support block is fixedly connected to the piston rod of the first hydraulic cylinder, a first diagonal brace is fixedly connected to the surface of the support frame, an end of the first diagonal brace away from the support frame is fixedly connected to the first hydraulic cylinder, a second hydraulic cylinder is fixedly connected to the surface of the first diagonal brace, a second support block is fixedly connected to the piston rod of the second hydraulic cylinder, a third support cylinder is fixedly connected to both sides of the support frame, a third support block is fixedly connected to the piston rod of the third support cylinder, a second diagonal brace is fixedly connected to both sides of the support frame, an end of the second diagonal brace away from the support frame is fixedly connected to the third support cylinder, a fourth hydraulic cylinder is fixedly connected to the surface of the second diagonal brace, and a fourth support block is fixedly connected to the piston rod of the fourth hydraulic cylinder.

[0005] Preferably, two groups of the first diagonal braces are provided, and the first diagonal braces support the first hydraulic cylinder on the support frame.

[0006] Preferably, the first hydraulic cylinder drives the first support block to move to the surface of the segment through a piston rod, and the second hydraulic cylinder drives the second support block to move to the surface of the segment through a piston rod.

[0007] Preferably, two groups of the second diagonal braces are provided on one side of the support frame, and the second diagonal braces support the third support cylinder on both sides of the support frame.

[0008] Preferably, the third support cylinder drives the third support block to move to the surface of the segment through the piston rod, and the fourth hydraulic cylinder drives the fourth support block to move to the surface of the segment through the piston rod.

[0009] Preferably, the support frame is in a "C" shape, and an "X" shaped bracket is arranged inside the support frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. A support frame is fixedly installed at the bottom of the segment. The first hydraulic cylinder drives the first support block through the piston rod at the top of the support frame to support the top of the segment. The second support block drives the second support block through the piston rod on the first diagonal brace to support both sides of the top of the segment. The third support cylinder drives the third support block through the piston rod on both sides of the support frame to support both sides of the segment. The fourth hydraulic cylinder drives the fourth support block through the piston rod on the second diagonal brace to support the upper part and the lower part of both sides of the segment. By supporting each point of the segment, the dislocation of the segment caused by frost heaving force is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a front view structural schematic diagram of the present utility model;

[0013] Figure 2 is a front view sectional three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 3 For the present utility model Figure 2 is an enlarged structural schematic diagram at A in;

[0015] Figure 4 For the present utility model Figure 2 is an enlarged structural schematic diagram at B in.

[0016] In the figure: 1, shield tunnel; 11, segment; 2, support frame; 21, first hydraulic cylinder; 22, first support block; 23, first diagonal brace; 24, second hydraulic cylinder; 25, second support block; 26, third support cylinder; 27, third support block; 28, second diagonal brace; 29, fourth hydraulic cylinder; 210, fourth support block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Please refer to Figure 1-4 , an embodiment provided by the present utility model:

[0018] A prestressed support device based on synchronous construction of a communication channel and a shield: comprising a shield tunnel 1, a pipe segment 11 is fixedly installed on the shield tunnel 1, a support frame 2 is fixedly connected to the surface of the pipe segment 11, a first hydraulic cylinder 21 is fixedly connected to the upper surface of the support frame 2, a first support block 22 is fixedly connected to the piston rod of the first hydraulic cylinder 21, a first diagonal brace 23 is fixedly connected to the surface of the support frame 2, an end of the first diagonal brace 23 away from the support frame 2 is fixedly connected to the first hydraulic cylinder 21, a second hydraulic cylinder 24 is fixedly connected to the surface of the first diagonal brace 23, and the piston rod of the second hydraulic cylinder 24 A second support block 25 is fixedly connected to the upper side, a third support cylinder 26 is fixedly connected to both sides of the support frame 2, a third support block 27 is fixedly connected to the piston rod of the third support cylinder 26, a second diagonal brace 28 is fixedly connected to both sides of the support frame 2, one end of the second diagonal brace 28 away from the support frame 2 is fixedly connected to the third support cylinder 26, a fourth hydraulic cylinder 29 is fixedly connected to the surface of the second diagonal brace 28, a fourth support block 210 is fixedly connected to the piston rod of the fourth hydraulic cylinder 29, and the prestressed support can support the pipe segment 11 inside the shield tunnel 1 to avoid dislocation of the pipe segment 11.

[0019] Furthermore, two groups of first diagonal braces 23 are provided, and the first diagonal braces 23 support the first hydraulic cylinder 21 on the support frame 2. The first diagonal braces 23 improve the stability of the first hydraulic cylinder 21 on the support frame 2. The first diagonal braces 23 are at an inclined angle, and the inclination angles of the two groups of first diagonal braces 23 are opposite.

[0020] Furthermore, the first hydraulic cylinder 21 drives the first support block 22 to move to the surface of the pipe segment 11 through the piston rod, and the second hydraulic cylinder 24 drives the second support block 25 to move to the surface of the pipe segment 11 through the piston rod. The first hydraulic cylinder 21 supports the top of the pipe segment 11 through the first support block 22, and the second hydraulic cylinder 24 supports both sides of the top of the pipe segment 11 through the second support block 25.

[0021] Furthermore, two groups of second diagonal braces 28 are arranged on one side of the support frame 2. The second diagonal braces 28 support the third support cylinder 26 on both sides of the support frame 2. The second diagonal braces 28 improve the stability of the third support cylinder 26 on both sides of the support frame 2. The second diagonal braces 28 are at an inclined angle, and the inclination angles of the two groups of second diagonal braces 28 are opposite.

[0022] Furthermore, the third support cylinder 26 drives the third support block 27 to move to the surface of the pipe segment 11 through the piston rod, and the fourth hydraulic cylinder 29 drives the fourth support block 210 to move to the surface of the pipe segment 11 through the piston rod. The third support cylinder 26 supports the pipe segment 11 on both sides through the third support block 27, and the fourth hydraulic cylinder 29 can support the upper and lower areas on both sides of the pipe segment 11 through the fourth support block 210.

[0023] Further, the support frame 2 is in a "C" shape, allowing the battery-powered vehicle moving inside the shield tunnel 1 to pass through. An "X"-shaped bracket is arranged inside the support frame 2 to ensure the stability of the support frame 2 itself.

[0024] Working principle: The support frame 2 is fixedly installed at the bottom of the segment 11. The first hydraulic cylinder 21 drives the first support block 22 through the piston rod at the top of the support frame 2 to support the top of the segment 11. The second support block 25 drives the second support block 25 through the piston rod on the first diagonal brace 23 to support both sides of the top of the segment 11. The third support cylinder 26 drives the third support block 27 through the piston rod on both sides of the support frame 2 to support both sides of the segment 11. The fourth hydraulic cylinder 29 drives the fourth support block 210 through the piston rod on the second diagonal brace 28 to support the upper and lower parts of both sides of the segment 11. By supporting each point of the segment 11, the dislocation of the segment 11 caused by the frost heaving force is avoided.

Claims

1. A prestressed support device based on synchronous construction of a communication channel and a shield, comprising a shield tunnel, on which a segment is fixedly installed, characterized in that: A support frame is fixedly connected to the surface of the segment. A first hydraulic cylinder is fixedly connected to the upper surface of the support frame. A first support block is fixedly connected to the piston rod of the first hydraulic cylinder. A first diagonal brace is fixedly connected to the surface of the support frame. One end of the first diagonal brace away from the support frame is fixedly connected to the first hydraulic cylinder. A second hydraulic cylinder is fixedly connected to the surface of the first diagonal brace. A second support block is fixedly connected to the piston rod of the second hydraulic cylinder. Third support cylinders are fixedly connected to both sides of the support frame. A third support block is fixedly connected to the piston rod of the third support cylinder. Second diagonal braces are fixedly connected to both sides of the support frame. One end of the second diagonal brace away from the support frame is fixedly connected to the third support cylinder. A fourth hydraulic cylinder is fixedly connected to the surface of the second diagonal brace. A fourth support block is fixedly connected to the piston rod of the fourth hydraulic cylinder.

2. A prestressed support device based on synchronous construction of a communication channel and a shield according to claim 1, characterized in that: There are two groups of the first diagonal braces, and the first diagonal braces support the first hydraulic cylinder on the support frame.

3. A prestressed support device based on synchronous construction of a communication channel and a shield according to claim 2, characterized in that: The first hydraulic cylinder drives the first support block to move to the surface of the segment through the piston rod, and the second hydraulic cylinder drives the second support block to move to the surface of the segment through the piston rod.

4. A prestressed support device based on synchronous construction of a communication channel and a shield according to claim 3, characterized in that: There are two groups of the second diagonal braces on one side of the support frame, and the second diagonal braces support the third support cylinders on both sides of the support frame.

5. A prestressed support device based on synchronous construction of a communication channel and a shield according to claim 4, characterized in that: The third support cylinder drives the third support block to move to the surface of the segment through the piston rod, and the fourth hydraulic cylinder drives the fourth support block to move to the surface of the segment through the piston rod.

6. A prestressed support device based on synchronous construction of a communication channel and a shield according to claim 5, characterized in that: The support frame is in an "L" shape, and an "X"-shaped bracket is arranged inside the support frame.

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