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Sealing installation structure of tunnel pipeline and installation method of tunnel pipeline

A technology for installing structures and pipelines, which is applied in the direction of pipes/pipe joints/fittings, pipes, mechanical equipment, etc. It can solve problems such as polluting working wells, construction difficulties, and surface subsidence, so as to prevent the loss of drag reducing mud, improve the sealing effect, Effect of reducing radial offset

Active Publication Date: 2018-03-06
GUANGZHOU ELECTRIC POWER DESIGN INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Groundwater, mud sand and lubricating slurry are easy to flow out of this gap, making construction difficult and contaminating working wells, and may even cause surface subsidence and cause safety accidents

Method used

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  • Sealing installation structure of tunnel pipeline and installation method of tunnel pipeline
  • Sealing installation structure of tunnel pipeline and installation method of tunnel pipeline
  • Sealing installation structure of tunnel pipeline and installation method of tunnel pipeline

Examples

Experimental program
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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below:

[0027] Such as figure 1 As shown, the sealing installation structure of the tunnel pipeline according to the present invention includes: a working well, a tunnel pipeline 20 , an installation tank 30 , and an annular capsule 40 .

[0028] see figure 2 , 3 , the working well has a working well wall 11 , and the working well wall 11 is provided with a hole 13 . The tunnel pipe 20 is inserted into the soil layer 12 connected with the working shaft wall 11 through the opening 13 . The installation tank 30 is detachably installed on the working well wall 11 , and the side wall of the installation tank 30 is in close contact with the working well wall 11 . The installation groove body 30 has an annular groove, the notch of which is opposite to the side wall of the tunnel pipe 20 , and the installation groove body 30 is sheathed outside the tunnel pipe 20 . The annular capsule 40 is installed in the an...

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Abstract

The invention discloses a sealing mounting structure of a tunnel pipeline and a mounting method of the tunnel pipeline. The mounting structure comprises a working well, the tunnel pipeline, mounting groove bodies and annular bag bodies, wherein holes are formed in the wall of the working well; the tunnel pipeline is inserted into a soil layer through the holes; the mounting groove bodies are detachably mounted on the wall of the working well, and the sidewalls of the mounting groove bodies are clung to the wall of the working well; the mounting groove bodies which are provided with annular grooves sleeve the tunnel pipeline; the annular bag bodies are mounted in the corresponding annular grooves and sleeve the tunnel pipeline; the annular bag bodies are propped against the bottom parts of the corresponding annular grooves and the sidewall of the tunnel pipeline. According to the mounting structure, the error allowance value of the opening size of the holes in the wall of the working well can be extended, thus the radial deviation of the tunnel pipeline in the propping-in process can be reduced, and the abrasion between the holes and other mounting assemblies can be avoided; in addition, the sealing effect is realized in the mounting process of the tunnel pipeline, so that the loss of the drag reducing mud which is poured in the propping-in construction of the tunnel pipeline can be prevented; a complete and effective mud sleeve can be formed, and thus the lubricating can be performed to achieve drag reducing, and the holes can be prevented from water.

Description

technical field [0001] The invention relates to the technical field of tunnel pipeline installation, in particular to a tunnel pipeline sealing installation structure and a tunnel pipeline installation method. Background technique [0002] In the tunnel shaft wall pipe jacking project, a hole slightly larger than the outer diameter of the pipe joint is reserved on the shaft wall first, so that the pipe can be smoothly jacked into the tunnel hole. While the pipe joint is pushed into the opening of the tunnel shaft wall, there will be a certain gap between the opening and the outer surface of the pipe joint. Groundwater, silt and lubricating slurry are easy to flow out of this gap, which makes construction difficult and pollutes the working well, and may even cause surface subsidence and cause safety accidents. Contents of the invention [0003] Based on this, the present invention overcomes the defects of the prior art, and provides a tunnel pipe sealing installation struc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L5/02
CPCF16L5/02
Inventor 黎伟苏伟房营光谷任国陈沛民张彬欧振锋莫光玲
Owner GUANGZHOU ELECTRIC POWER DESIGN INST
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