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Tunnel crack repair method

A technology for repairing cracks and tunnels, which is applied in tunnels, tunnel linings, earthwork drilling and mining, etc. It can solve problems such as water seepage in tunnel cracks, and achieve the effect of ensuring compactness and good waterproofing

Inactive Publication Date: 2016-07-20
韦积分
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for repairing tunnel cracks, which can solve the problem of water seepage in tunnel cracks

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] This method of tunnel crack repair includes the following steps:

[0018] A. Drilling: Drilling to find the leakage channel, the hole spacing of the drilling is: 0.2 meters, the hole diameter is 20 cm, and the hole depth is 10 cm;

[0019] B. Cleaning: remove the ashes in the holes and seams in step A;

[0020] C. Grouting: use grouting plugs to grout the holes. The grout used is water-soluble polyurethane grouting liquid. The grouting method is to advance along the crack from one end to the other, and use single-hole grouting one by one. The grouting of the hole can be completed after the grout is released, and the grouting of the next hole can be continued;

[0021] D. Sealing: After grouting, take out the grouting plug and seal the hole with mortar, which is epoxy resin mortar.

Embodiment 2

[0023] This method of tunnel crack repair includes the following steps:

[0024] A. Drilling: Drilling to find the leakage channel, the hole distance of the drilling is: 0.5 meters, the hole diameter is 30 cm, and the hole depth is 20 cm;

[0025] B. Cleaning: remove the ashes in the holes and seams in step A;

[0026] C. Grouting: use grouting plugs to grout the holes. The grout used is water-soluble polyurethane grouting liquid. The grouting method is to advance along the crack from one end to the other, and use single-hole grouting one by one. The grouting of the hole can be completed after the grout is released, and the grouting of the next hole can be continued;

[0027] D. Sealing: After grouting, take out the grouting plug and seal the hole with mortar, which is epoxy resin mortar.

[0028] After the tunnel cracks are repaired according to the above steps, the overall structure of the tunnel will not be damaged, the compactness of the tunnel concrete will be ensured, ...

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PUM

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Abstract

The invention discloses a tunnel crack repair method, and relates to the technical field of architectural engineering construction. The tunnel crack repair method comprises the following steps: (A) drilling: the drilling is performed to find out a leakage channel; the drilling pitch is 0.2-0.5 m; the aperture is 20-30 cm; and the hole depth is 10-20 cm; (B) crack surface closing: ash in holes and gaps in the step (A) is removed; (C) grouting: the holes are grouted by using a grouting plug; and (D) hole sealing: after the grouting is finished, the grouting plug is taken out, and resin mortar is used for sealing the holes. Compared with the prior art, the tunnel crack repair method solves the problems of water leakage and water seepage after tunnel cracking.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a method for repairing cracks in tunnels. Background technique [0002] There are obvious penetrating pores in the concrete cracks of the tunnel. If the penetrating cracks and pores are not dealt with in time, there will be internal water seepage and external water infiltration. And cause the phenomenon of water seepage in the mountain body, which will directly affect the service life of the hydraulic tunnel, and then affect the safe and stable operation of the tunnel. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for repairing tunnel cracks, which can solve the problem of water seepage in tunnel cracks. [0004] In order to solve the above problems, the technical solution adopted in the present invention is: the method for repairing the cracks in this tunnel, comprising the following step...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/38
CPCE21D11/10E21D11/38
Inventor 韦积分
Owner 韦积分
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