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Plugging and draining combined treatment method for water leakage at tunnel secondary lining construction joint

A technology of blocking and drainage combination and construction joints, which is applied in tunnel lining, tunnel, drainage and other directions, can solve the problems of no blocking and drainage combination system, no natural drainage, affecting the safety of the structure in use, etc., to avoid lining cracking, Significant economic and social benefits and less destructive effects

Active Publication Date: 2018-12-07
JINAN URBAN CONSTR GRP
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  • Abstract
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AI Technical Summary

Problems solved by technology

Most of the current leakage treatment is to simply use grouting in the hole to seal the leakage site, slotting drainage or a combination of the two systems, but the existing water blocking structure needs to destroy the secondary lining structure, which affects the safety of the structure in use The combination of plugging and drainage system is not set up, and natural drainage is not realized

Method used

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  • Plugging and draining combined treatment method for water leakage at tunnel secondary lining construction joint
  • Plugging and draining combined treatment method for water leakage at tunnel secondary lining construction joint

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Embodiment Construction

[0019] 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.

[0020] A method for combined treatment of seepage water plugging and draining in construction joints of the second lining of the tunnel, comprising the following steps:

[0021] (1) Chisel off the original filling material of the secondary lining 12 construction joint 1, chisel to the surface of the buried waterstop, clean the inner surface of the construction joint 1, and remove the oil, attachments, dust, etc. on the inner surface of the construction joint 1 gap, Ensure that the inner surface of the construction joint 1 is dry, smooth and clean to prevent poor bonding. After cleaning, use waterproof sealant 2 to compact and fill t...

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Abstract

The invention relates to the technical field of tunnel underground engineering, in particular to a plugging and draining combined treatment method for water leakage at a tunnel secondary lining construction joint. According to the plugging and draining combined treatment method, water plugging is conducted through anchor bolts and a rubber waterstop, then, natural draining is conducted through a draining guiding channel and draining guiding pipes, and the current structure of a tunnel secondary lining is not changed, so that destructiveness is less, lining cracking is effectively avoided, andtunnel safety and use are not affected; and the construction steps are simple, operability is high, a plugging and draining combined system is formed, natural draining is achieved, and economic benefits and social benefits are significant.

Description

technical field [0001] The invention relates to the technical field of tunnel underground engineering, in particular to a method for combined treatment of seepage and water plugging and draining of construction joints of the second lining of the tunnel. Background technique [0002] During the construction and operation of urban underground roads and other underground projects, due to the intricate underground pipelines and complex geology, most tunnels and underground projects have varying degrees of water damage, freezing damage, lining damage, and lining erosion, among which water damage is the most common. Leakage occurs in varying degrees. Among them, water leakage from construction joints and deformation joints is the most common. Leakage in the tunnel has a great impact on the safe operation of the tunnel, and even endangers the safety of the tunnel structure. Most of the current leakage treatment is to simply use grouting in the hole to seal the leakage site, slo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/38E21F16/02
CPCE21D11/38E21F16/02
Inventor 孙杰李雷李海宾曲红叶解德龙尉鹏江鹏井乐雨
Owner JINAN URBAN CONSTR GRP
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