Reinforcing protection treatment method for tunnel lining defects

A technology for lining and tunneling, which is applied in the field of tunnel lining concrete repair technology, and can solve problems such as less thickness of invasion, non-invasion, and falling off of lining concrete
CN112031821AActive Publication Date: 2020-12-04北京鸿锐嘉科技发展有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
北京鸿锐嘉科技发展有限公司
Publication Date
2020-12-04

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Abstract

The invention discloses a reinforcing protection treatment method for tunnel lining defects. The reinforcing protection treatment method comprises the steps that the surface of lining concrete is brushed, sprayed or smeared with a bonding material; at least one layer of reinforcing net is pasted on the surface of the lining concrete in the longitudinal or circumferential direction of the tunnel; and the reinforcing net is fixed to the tunnel lining through a reinforcing structure. According to the reinforcing protection treatment method for the tunnel lining defects, through combination of thereinforcing net and the reinforcing structure, that is, through a protection matching reinforcing rigid-flexible combination method, the problems of cracking and chipping of tunnel lining concrete, especially sudden falling of concrete with cold joints, are solved, the problem of safety risk of air blast falling caused by train wind of protective reinforcement measures is solved, and a key role is played in railway tunnel operation safety.
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Description

technical field

[0001] The invention relates to a tunnel lining concrete repair process, in particular to a treatment method for serious defects in the tunnel lining. Background technique

[0002] Our country is a mountainous country, so the amount of tunnels is also very large. By the end of 2017, China Railway had put into operation 14,547 railway tunnels, with a total length of 15,326 kilometers. By the end of 2018, there were 17,738 road tunnels in China, with a total length of 17,236 kilometers. With the continuous increase of tunnel operation time, the internal quality hidden dangers of the tunnel lining gradually emerge under the interaction of various external environmental factors, resulting in the structural defects of the tunnel lining, and the structural defects of the tunnel directly affect the bearing capacity of the tunnel lining structure. The reduction will lead to structural deformation, and even catastrophic consequences such as rupture and collapse of t...

Claims

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