Waterproof structure system of underground pipe gallery expansion joint and construction method of waterproof structure system

Abstract

The invention relates to the technical field of waterproof structure systems of underground pipe gallery expansion joints and discloses a waterproof structure system of an underground pipe gallery expansion joint and a construction method of the waterproof structure system. The waterproof structure system comprises a middle-buried water stop belt, a joint embedding material, a joint filling material, waterproof coatings sprayed on the side wall of a pipe gallery, and waterproof rolls covering the expansion joint. The middle-buried water stop belt, the joint embedding material and the joint filling material are arranged at the position of the expansion joint. The portions, on the two sides of the middle-buried water stop belt, of the telescopic joint are filled with the joint embedding material. The joint filling material on the side, close to the inner wall of the pipe gallery, of the expansion joint is located on the outer side of the inner waterproof coating. The outer waterproof coating is sprayed on the surface of the outer wall of the pipe gallery, the first waterproof roll and the second waterproof roll are sequentially laid on the outer side of the outer waterproof coating, and the central axes of the first waterproof roll and the second waterproof roll are overlapped with the central axis of the expansion joint. The binding force of the waterproof structure system and a concrete structure is high, and the waterproof structure system is not likely to crack and good in waterproof effect.

Description

technical field [0001] The invention relates to the technical field of waterproof structure system of expansion joints of underground pipe gallery, in particular to a waterproof structure system of expansion joints of underground pipe gallery and a construction method thereof. Background technique [0002] Pipe corridors are the arteries of urban underground facilities, and the problem of water leakage has always been a common quality problem that plagues underground pipe corridor projects; as a "century-old project", effective waterproofing has become the top priority. The pipe gallery is basically a long horizontal structure and is buried underground. Generally, there are many joints and structural joints. Due to the comprehensive influence of various factors such as the dynamic load of vehicles on the ground, the lateral pressure generated by surrounding buildings, and the uneven settlement of the structure, the expansion joints of the pipe gallery will cause different de...

AI Technical Summary

Problems solved by technology

The pipe gallery is basically a long horizontal structure and is buried underground. Generally, there are many joints and structural joints. Due to the comprehensive influence of various factors such as the dynamic load of vehicles on the ground, the lateral pressure generated by surrounding buildings, and the uneven settlement of the structure, the expansion joints of the pipe gallery will cause different degrees of dislocation, floating, and cracking of the waterstop, resulting in Water leakage occurs in the expansion joints of the pipe gallery, which brings safety hazards to various pipes and pipelines inside

Moreover, since there is a rainwater tank in the pipe gallery, the inner wall and outer wall of the pipe gallery are facing the water, the traditional waterproof structure system generally fills the expansion joint with caulking material, which has the function of water sealing and can adapt to the change of the expansion joint. However, the waterproof coefficient of this waterproof structure system is low, and it is prone to leakage; and the expansion joint path of the pipe gallery is long, and leakage and cracking are prone to occur at the joints

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