A method for plugging the end of pipe jacking curtain

A pipe curtain and end technology, which is applied in the field of waterproof construction of the pipe curtain end of the pipe jacking tunnel in the whole process, to facilitate grouting treatment, save water seepage treatment costs, and contribute to the safety of the tunnel structure

Active Publication Date: 2020-04-14
CHINA RAILWAY 18TH BUREAU GRP CO LTD +1
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for plugging the end of the pipe jacking screen to solve the problem of how to effectively block the end of the pipe jacking screen

Method used

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  • A method for plugging the end of pipe jacking curtain
  • A method for plugging the end of pipe jacking curtain
  • A method for plugging the end of pipe jacking curtain

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Embodiment Construction

[0029] Such as Figure 1-6 As shown, a method for sealing the end of a pipe-jacking pipe curtain. In the construction of a pipe-jacking tunnel, steel edge waterstops 1-2 are installed on the inner lining wall 1-1 and the three linings of the pipe-jacking tunnel in the early stage, grouting is sealed, and the later stage The end of pipe curtain 3-1 is welded and sealed with steel plate 2-1, filled with concrete, laid with waterproof coiled material, constructed as water sealing wall 4-2, and grouted to seal the pipe curtain 3-1.

[0030] The specific technical scheme is carried out according to the following steps:

[0031] a. Waterproof construction of lining wall 1-1 at the end of pipe curtain 3-1

[0032] During the construction of the inner lining wall 1-1, install the pipe jacking orifice pipe and the steel edge waterstop 1-2 and reserve the grouting pipe 3-2, and use steel plates to protect the steel edge waterstop 1-2 , wherein the construction of the lining wall 1-1 s...

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Abstract

The invention discloses a method for sealing an end of a pipe curtain of a jacking pipe. According to jacking pipe tunnel construction, steel edge waterstop belts are installed on lining walls and jacking pipe tunnel three-linings in the earlier stage, grouting sealing is carried out, steel plates are welded and plugged to the end of the pipe curtain in the later stage, concrete filling is carriedout, waterproof roll paving is carried out, water sealing wall construction is carried out, grouting sealing is carried out, and the pipe curtain is sealed. According to the method, the steel edge waterstop belts effectively enable a dark excavation section, an inner lining wall and a water sealing wall to form a single waterproof and drainage system, later water seepage disposal risks are conveniently prevented, the water seepage treatment cost can be effectively saved, in addition, the pipe curtain cannot be damaged by the plugging manner, the safety of the tunnel structure is facilitated,and a reserved grouting pipe facilitates leakage water grouting treatment at the position of the pipe curtain in the later stage.

Description

technical field [0001] The invention relates to a method for sealing the end of a pipe curtain in a pipe jacking tunnel, and is particularly suitable for a method for waterproofing the entire process of the end of a pipe curtain in a pipe jacking tunnel. Background technique [0002] Pipe jacking technology is a non-excavation pipe laying construction technology used in municipal construction. The pipe jacking construction has the advantages of fast speed, small construction site, low noise, and relatively small impact on the surrounding environment and can work deep underground. advantage. However, under some complex geological and stratigraphic conditions, there is a great potential safety hazard at the end of the pipe jacking during the construction process. The specific pipe curtain end sealing treatment is not perfect, which will easily cause water seepage and leakage in the later stage, which will seriously affect the safety of the main structure. Therefore, there is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/028F16L1/06
CPCF16L1/028F16L1/06
Inventor 潘建立刘应亮蒋峰峰张瑞乐王江孟妍金鑫王占江薛成健
Owner CHINA RAILWAY 18TH BUREAU GRP CO LTD
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