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Tunnel second lining construction joint waterproof structure

A waterproof structure and construction joint technology, applied in the direction of tunnel lining, tunnel, drainage, etc., to achieve the effect of strong operability, significant economic and social benefits, and simple construction steps

Inactive Publication Date: 2018-11-16
JINAN URBAN CONSTR GRP
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

However, the existing waterproof structure at the construction joints is only to install waterproof membranes at the construction joints, and to install rubber waterstops at the middle joints. Once water leakage occurs, it needs to be remedied by destroying the secondary lining structure.

Method used

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  • Tunnel second lining construction joint waterproof structure
  • Tunnel second lining construction joint waterproof structure

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Embodiment Construction

[0015] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

[0016] The present invention provides a waterproof structure for the construction joint of the second lining of the tunnel. Five parts of the waterproof structure are set at the construction joint 1. Compared with the existing post-processing measures, the present invention takes precautions, and the advance processing structure of the present invention is safer and more convenient. , effective, the following will introduce the five-part waterproof structure made at the construction joint 1 one by one:

[0017] The first part: During the construction of the structure, a water receiving box space is reserved inside the construction j...

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Abstract

The invention relates to the technical field of tunnel underground engineering, in particular to a tunnel second lining construction joint waterproof structure. Through arrangement of five parts of structures that a water receiving box is pre-arranged in advance, a construction joint is filled with a polystyrene foam board and a polyurethane sealant, a middle-buried-type steel edge rubber water stop belt is pre-buried in a middle joint, double-layer waterproof coiled materials are laid, and an external rubber water stop belt is arranged, the problem of water leakage of the construction joint is prevented and treated in advance, and aiming at the problem of water leakage of different causes and parts, an effective novel waterproof structure system combining plugging, cutting and draining isformed.

Description

technical field [0001] The invention relates to the technical field of tunnel underground engineering, in particular to a waterproof structure for construction joints of the second lining of the tunnel. Background technique [0002] The causes of water leakage in underground engineering are different, usually caused by incomplete design considerations, insufficient construction and inappropriate selection of engineering materials. To solve the problem of water leakage in underground engineering, it is necessary to comprehensively consider from different disciplines to form system solution. Among them, the water leakage problem at the tunnel construction joint position is complicated and changeable, and the technical nature is strong. There are often the following reasons that lead to the water leakage phenomenon: 1. The deformation of the underground project is too large, exceeding the allowable deformation range; 2. The underground The rapid displacement of the expansion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21D11/10E21F16/02
CPCE21D11/10E21D11/383E21D11/385E21F16/02
Inventor 金宝李海宾段帅韩雪光张远波禚丽丽朱洪丽杜轩
Owner JINAN URBAN CONSTR GRP
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