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Pipe roof construction method

A construction method and technology of pipe curtains, which are applied in earth-moving drilling, mining equipment, tunnels, etc., can solve the problems of large ground track subsidence, and achieve the effect of solving large ground track subsidence.

Pending Publication Date: 2019-03-19
CHINA RAILWAY SHISIJU GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a pipe curtain construction method to solve the problem of large ground track settlement caused by tunnel pipe curtain construction in the prior art

Method used

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Embodiment Construction

[0022] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0023] A tube curtain construction method, applied to the construction of underground tunnels passing through the station, please refer to Figure 1 to Figure 3 , The pipe curtain construction method includes: infiltration grouting on the ground; setting the starting and ending positions of the tunnel, and digging a working well at the starting and ending positions, and the working well at the starting position is used as the starting The starting well, the working well at the end position is used as the receiving well; the multi-section steel pipes 10 are driven from the starting well into the preset tunnel route until they pass through the receiving well; all the steel pipes 10 of the tu...

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Abstract

The invention provides a pipe roof construction method. The pipe roof construction method is applied to construction of an underground channel passing through a station and is characterized by comprising permeation-grouting the ground; setting the initial position and the final position of a channel, and digging a working well respectively in the initial position and the final position, wherein the working well of the initial position is a starting well, and the working well of the final position is a receiving well; driving a plurality of steel pipes from the starting well into a preset tunnel route until out of the receiving well; sequentially from bottom to top, driving in all the steel pipes of a pipe roof structure; sequentially from top to bottom, cutting and supporting the steel pipes of the pipe roof structure; excavating earth enclosed by the pipe roof structure simultaneously from the starting well and the receiving well towards the middle of the tunnel until the entire tunnel is broken through. The pipe roof construction method solves the problem of large ground track subsidence caused by tunnel pipe roof construction in the prior art.

Description

Technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a pipe curtain construction method. Background technique [0002] Traditional tunnels do not require very high accuracy for the settlement of subgrades constructed on the ground during the construction process and after the completion of the construction. With the expansion of railways and highways, some tunnels are constructed with existing buildings above them. Once the tunnels below are excavated, it is inevitable. A certain degree of settlement is caused. The longer the time, the more obvious the settlement will be, which will damage or even collapse the building above the tunnel construction, which is very dangerous. [0003] For example, an existing railway station, due to its location in the city center and traffic congestion on the road, urgently needs to open new roads to disperse traffic flow. A certain municipality plans to build two underground lanes to pass thro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00
CPCE21D9/00E21D9/001
Inventor 李占先王焕王可用路刚刘小果李腾郭勇
Owner CHINA RAILWAY SHISIJU GROUP CORP
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