Tunnel secondary lining back arch grouting pipe reserving system

A technology of secondary lining and grouting pipe, applied in tunnel lining, tunnel, wellbore lining, etc., can solve the problems of large thickness deviation of secondary lining, pollution of secondary lining, outflow of cement slurry, etc.

Active Publication Date: 2013-05-22
CHANGYE CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, due to the large deviation in the thickness of the secondary lining of the vault during construction, the lining trolley will float and sink when pouring concrete, which may easily break the waterproof board, the panel of the lining trolley is deformed, and the secondary lining has no reinforcement section. Problems such as the inability to fix the grouting pipe
At the same time, there is also a phenomenon that the cement slurry flows out of the grouting pipe and blocks the reserved grouting pipe when the second lining is capped and grouted
In addition, there is also the problem that the reserved grouting pipes will rust and pollute the secondary lining for a long time

Method used

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  • Tunnel secondary lining back arch grouting pipe reserving system
  • Tunnel secondary lining back arch grouting pipe reserving system
  • Tunnel secondary lining back arch grouting pipe reserving system

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Embodiment Construction

[0023]

[0024] Such as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 As shown, the reserved grouting pipe system for the tunnel secondary lining arch back of the present invention includes a lining trolley panel 1, an elastic cushion body 3 with a longitudinal through hole 2, a connecting pipe 4, a wire joint 5, and a grouting pipe 6 , wherein the elastic cushion body 3, the connecting pipe 4, the threaded joint 5, and the grouting pipe 6 are installed and connected sequentially from top to bottom, the connecting pipe 4 communicates with the longitudinal through hole 2 of the elastic cushion body 3, and the lower end of the grouting pipe 6 Penetrate the lining trolley panel 1 and extend downwards. The grouting pipe 6 is located on the outer wall below the lining trolley panel 1. A spring 7 is installed on the outer wall. The top of the spring 7 is fixedly connected with the lining trolley panel 1. The bottom end of the spring 7 is connected to The g...

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PUM

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Abstract

The invention discloses a tunnel secondary lining back arch grouting pipe reserving system, and belongs to the technical field of grouting pipe embedding during tunnel secondary lining construction. The system comprises a lining trolley face plate, an elastic cushion with a longitudinal through hole and a grouting pipe, the elastic cushion and the grouting pipe are sequentially mounted from top to bottom in a matching manner, the grouting pipe is communicated with the longitudinal through hole of the elastic cushion, the lower end of the grouting pipe penetrates through the lining trolley face plate to extend downwards, a spring is mounted on the outer wall, positioned below the lining trolley face plate, of the grouting pipe, the top end of the spring is fixedly connected with the lining trolley face plate, the bottom end of the spring is fixedly connected with the grouting pipe, and the spring is in a stretching state. During concreting in a secondary lining construction process, the grouting pipe can be reserved, can be prevented from bursting a waterproof board, and can cling to the waterproof board to prevent backflow of cement paste to block the grouting pipe.

Description

technical field [0001] The invention discloses a reserved grouting pipe system for a tunnel secondary lining arch back, belonging to the technical field of pre-embedded grouting pipes in the tunnel secondary lining construction process. Background technique [0002] In recent years, with the vigorous development of traffic engineering, there are more and more hidden dangers such as secondary lining cracking and water seepage in highway, railway and municipal tunnel projects. The newly revised specification for design and construction of highway tunnels requires that top grouting holes must be reserved during secondary lining construction, and arch back grouting treatment must be performed after secondary lining construction. In the existing technology, due to the large deviation in the thickness of the secondary lining of the vault during construction, the lining trolley will float and sink when pouring concrete, which may easily break the waterproof board, the panel of ...

Claims

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Application Information

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IPC IPC(8): E21D11/10
Inventor 王炳军唐振兴敖鹏康宝王帅沈建海
Owner CHANGYE CONSTR GROUP
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