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A telescopic steel pipe piece and its installation method for the construction of tunnel communication passages

A technology for communication channels and steel pipes, which is applied in tunnels, installation of anchor rods, tunnel linings, etc., can solve the problems of inability to reuse and difficult disassembly of segments, and achieve rapid disassembly and reuse, easy disassembly, enhanced integrity and stability sexual effect

Active Publication Date: 2022-02-11
CHINA RAILWAY SHISIJU GROUP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention discloses a steel pipe piece and an installation method for the construction of the tunnel connecting passage, aiming to solve the problem that the section of the shield tunnel connecting passage is difficult to disassemble and cannot be reused

Method used

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  • A telescopic steel pipe piece and its installation method for the construction of tunnel communication passages
  • A telescopic steel pipe piece and its installation method for the construction of tunnel communication passages
  • A telescopic steel pipe piece and its installation method for the construction of tunnel communication passages

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Embodiment 2

[0046] An embodiment of the present disclosure provides an assembly method based on the above-mentioned telescopic steel pipe sheet for construction of a tunnel communication channel, the method includes the following process:

[0047] The overall construction process of the segment is as follows:

[0048] (1) Before the segment is installed, the bearing plate is extended

[0049] Before the segment is installed, pull the jacking steel pipes on the arc-shaped bearing plate and the rectangular bearing plate to make the rectangular bearing plate and the arc-shaped bearing plate protrude, and the external dimension of the stretched segment is consistent with the concrete prefabricated segment. The jacking steel pipe is fixed in the stressed steel pipe by the limit bolt, and at the same time, a PVC plastic plate is installed on the outside of the bottom bearing plate and a waterproof sealing strip is pasted around it, so as to prevent slurry leakage and later steel pipe pieces at ...

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Abstract

The disclosure relates to a telescopic steel pipe piece and an installation method for the construction of a tunnel connecting passage, which belong to the technical field of rail transit engineering. The steel pipe piece includes a rectangular bottom plate with an arc-shaped surface. Both ends in the width direction are connected to the first side plate, a second side plate perpendicular to the first side plate is provided in the length direction of the rectangular bottom plate, and a skeleton is arranged above the rectangular bottom plate, and the skeleton is within the length and width of the rectangular bottom plate. Several stressed steel pipes are arranged in each direction, and the first side plate and the second side plate are provided with jacking steel pipes, and the jacking steel pipes are slidably fixed on the stressed steel pipes. The disclosed steel pipe piece solves the problem that the section section of the connecting channel of the shield tunnel is difficult to disassemble and cannot be reused.

Description

technical field [0001] The disclosure belongs to the field of rail transit engineering, and in particular relates to a telescopic steel pipe piece and an installation method for the construction of a tunnel connecting passage. Background technique [0002] The statements herein merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Shield or TBM tunnels are mostly supported by prefabricated concrete segments, and the installed segments need to be removed first during the construction of the tunnel connecting passage. At present, the demolition of presupported concrete segments at the communication channel is mostly done by pneumatic picks. The vibration generated by the pneumatic picks will affect the stability of the existing structure, and the workload of the pneumatic picks is large, the construction speed is slow, and the construction safety is poor. In order to facilitate the construction of the com...

Claims

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Application Information

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IPC IPC(8): E21D11/18E21D11/38E21D20/02E21D11/00
CPCE21D11/18E21D11/38E21D20/02E21D11/00
Inventor 李克金梁尔斌王志康李秀东王军吴圣智韩健勇
Owner CHINA RAILWAY SHISIJU GROUP CORP
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