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Device and method for rapid treatment of local defects in high ground stress tunnels

A technology of high ground stress and tunnel disease, applied in tunnels, tunnel linings, shaft equipment, etc., can solve the problems of affecting the normal operation of trains, unsatisfactory treatment effects, and high treatment costs, achieve good application prospects, avoid poor treatment effects, Patch for quick effects

Active Publication Date: 2020-08-25
西安华清科教产业(集团)有限公司
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Problems solved by technology

[0003] At present, there is no good way to treat tunnel diseases. It is usually treated by spraying concrete with hanging nets. When the disease is serious, the secondary lining needs to be removed and rebuilt. Secondary diseases may occur, and the treatment cost of the latter is high and the treatment time is long, which affects the normal operation of the train

Method used

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  • Device and method for rapid treatment of local defects in high ground stress tunnels
  • Device and method for rapid treatment of local defects in high ground stress tunnels

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Embodiment

[0050] Treatment of a tunnel lining defect on the Yuwan Railway. The tunnel defect was cracking and peeling of the lining on the right side wall. According to the investigation of tunnel experts, local high ground stress is the most critical factor causing the defect. It is required to repair it as soon as possible without affecting the traffic as much as possible. . Adopt the scheme that the present invention provides, concrete steps are:

[0051] Step 1: First, organize personnel to detect and identify tunnel defects, and determine the area of ​​tunnel defects as: length 3m×width 1m, basically parallel to the tunnel axis;

[0052] Step 2: Communicate with the Wanzhou Railway Bureau to determine the timetable for the operation of the train, and clarify that the operation time of the skylight is from 1:00 p.m. to 5:00 p.m. All the following construction work will be carried out during the skylight time;

[0053] Step 3: Erection of temporary steel arches 2 within the area of ...

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Abstract

The invention discloses a rapid treatment device and method for local defects of a tunnel with high crustal stress. Defect exploration and identification are conducted first on the local defects of the tunnel, a temporary steel arch frame is erected within a tunnel defect range, and top locking steel pipes and bottom locking steel pipes are inserted to the upper portion and lower portion within the tunnel defect range respectively to ensure the safety of a construction process. By means of the method, fast positioning can be achieved, local governance is conducted, the construction is carriedout in the skylight time during running of a train, and the influence on running of the train is small; the method has high pertinency and can be used for rapid treatment of the small tunnel defects,the problem of a poor treatment effect of conventional treatment means is avoided, the cost can be reduced at the same time, an environmental protection effect is achieved, and a good application prospect is achieved.

Description

technical field [0001] The invention belongs to the field of tunnel disease treatment, and in particular relates to a rapid treatment device and treatment method for local diseases of high ground stress tunnels. Background technique [0002] At present, thousands of road and railway tunnels have been built in my country. The geological conditions of the tunnels are very complex. After the tunnels are completed and put into operation, various diseases may gradually appear with the increase of the operating years. The causes of tunnel damage are more complicated, and generally there are three factors: firstly, design reasons, tunnel design support parameters are not reasonable enough, and the durability of lining concrete is insufficient with the operation of the tunnel, leading to various diseases gradually; secondly, construction factors, Local construction quality problems may occur during the tunnel construction process, such as local lining concrete is not compacted by vi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/00E21D11/14E21D11/18E21D11/10E21D11/38E21D20/02
CPCE21D9/001E21D11/10E21D11/14E21D11/18E21D11/38E21D20/021
Inventor 王军保张玉伟宋战平付君杨腾添
Owner 西安华清科教产业(集团)有限公司
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