Construction method of novel spraying film-forming waterproof construction system for tunnel planting roof

Abstract

The invention relates to a construction method of a novel spraying film-forming waterproof construction system for a tunnel planting roof. The construction method comprises the steps that construction preparation is conducted, specifically, design files are familiar, design drawings are checked, and raw materials enter a site and are accepted and accepted; waterproof construction of the bottom plate; performing side wall waterproof construction; roof waterproof construction; laying a non-woven fabric root puncture resistant layer; and pouring a concrete protective layer. The roof waterproof device disclosed by the invention has the beneficial effects that the roof waterproof device in the roof waterproof device is a spraying film-forming waterproof system consisting of a water-emulsion asphalt waterproof layer and an acrylate spraying film waterproof layer; the spraying film-forming waterproof system can form a uniform thin film with good integrity and high construction precision on a spraying surface under the condition that the wall surface is obviously concave and convex and is in a wet state, can adapt to various complicated structural shapes, and is obvious in waterproof effect; the operation is convenient, environment-friendly, safe and reliable; according to the waterproof structure, a waterproof system combining concrete self-waterproofing and the external full-wrapping flexible waterproof layer is adopted, so that the waterproof material is free of joints, the integrity is good, and the waterproof quality is high.

Description

technical field [0001] The invention belongs to the technical field of waterproof construction of underground engineering structures, and in particular relates to a construction method of a novel spray-film-forming waterproof construction system for a tunnel planting roof. Background technique [0002] The problem of water leakage is a major stubborn problem in tunnel engineering, and it is also a prominent common quality problem in the current underground engineering construction and a subject that needs to be solved in depth. At present, the construction of anti-seepage water in tunnels generally adopts polymer waterproof sheets, such as various types of plastic sheets and rubber sheets. The use of waterproof board for waterproofing has the following problems: first, the material itself cannot be closely adhered to the concrete, it is difficult to meet the requirements of water blocking, the impact during installation, the protrusion on the back, etc. can easily puncture t...

AI Technical Summary

Problems solved by technology

There are the following problems in using waterproof boards for waterproofing: first, the material itself cannot be closely adhered to the concrete, and it is difficult to meet the requirements of water blocking. The board requires the waterproof surface to be smooth and tidy. If there are large cavities and unevenness on the wall surface, the secondary lining extrusion waterproof board will be stretched, which will easily break the waterproof board. In addition, the joint between the board and the board is the waterproof board. The weak link of the waterproofing system requires high construction precision, and a little carelessness will lead to the failure of the entire waterproofing system

[0003] Spray film-forming waterproof technology can effectively solve the above problems, and has been applied to a certain extent in the waterproof construction of mining tunnels; Damage to the formed waterproof system during the process

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