Tunnel diversion composite type waterproof and drainage system as well as construction method and use method thereof

Abstract

The invention discloses a tunnel diversion composite type waterproof and drainage system which comprises a surrounding rock waterproof and drainage system and a tunnel internal drainage system, wherein the surrounding rock waterproof and drainage system comprises a waterproof and drainage layer and a surrounding rock water drainage and collection pipe; the waterproof and drainage layer consists of multiple waterproof and drainage plates arranged in a butting manner; the surrounding rock water drainage and collection pipe consists of a concrete prefabricated pipe and a cover plate; the tunnel internal drainage system comprises a left water collecting tank, a right water collecting tank, a tunnel internal water drainage and collection pipe, a left drainage pipe and a right drainage pipe; the tunnel internal water drainage and collection pipe is arranged on a water collecting pipe base. The invention also discloses a construction method and a use method for the tunnel diversion composite type waterproof and drainage system. According to the tunnel diversion composite type waterproof and drainage system as well as the construction method and the use method thereof disclosed by the invention, the convenience for construction is realized; the diversion of surrounding rock waterproof and drainage and tunnel internal waterproof and drainage is realized, two functions of resisting water and draining water are integrated, the overall waterproof and drainage effects of the integral tunnel are improved, and the difficult problems of tunnel crack, leakage, frost heaving, water logging or icing and the like of a tunnel can be thoroughly solved.

Description

Technical field [0001] The invention belongs to the technical field of tunnels and underground engineering waterproofing and drainage, and in particular relates to a tunnel diversion composite waterproofing and drainage comprehensive system and a construction method and a use method thereof. Background technique [0002] At present, composite lining waterproof and drainage systems are widely used at home and abroad. In terms of waterproofing: After pre-grouting and waterproofing measures, the tunnel section is excavated, and then bolt support is carried out to strengthen the strength of the surrounding rock. At the same time, the reinforcement mesh is constructed to connect with the end of the bolt and spray concrete to complete the initial support. The first line of defense; then a composite waterproof layer is constructed as the second line of defense; after that, the second concrete lining is completed to form the third structural self-waterproof layer. In actual projects, th...

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Problems solved by technology

At the same time, the waterproof and drainage system of the tunnel is constructed according to this method, the process is complicated, and the project cost is relatively high

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