Cross pipe gallery outer waterproof construction method

Abstract

The invention discloses a cross pipe gallery outer waterproof construction method. According to the construction method, construction joints are formed by a certain distance in side walls of a main pipe gallery and side walls of a secondary pipe gallery above the top faces of bottom plates, a concrete cushion layer is laid at the bottom of a foundation pit, guide walls are built from two sides ofthe side walls of the main pipe gallery, and soil outside the guide walls is tamped to be flat below the top faces of the guide walls; the concrete cushion layer is laid to be flush with the top surfaces of the guide walls, and guide walls are built on two sides of the side walls of the secondary pipe gallery on the concrete cushion layer of a bottom plate of the secondary pipe gallery; waterproofcoiled materials of a bottom plate and the side walls of the main pipe gallery and the bottom plate of the secondary pipe gallery are pre-laid; a waterproof reinforcing layer is pre-laid at the external corner part of a top plate of the secondary pipe gallery; waterproof treatment is performed on the intersection part between the side walls of the secondary pipe gallery and the top plate of the main pipe gallery; and waterproof treatment is conducted on the side walls above the bottom plate of the secondary pipe gallery, and protection of the waterproof coiled materials is achieved. By meansof the method, gapless laying of the waterproof coiled materials at a cross pipe gallery is achieved, coiled material stress concentration and damage to the waterproof coiled materials are reduced, the waterproof effect is good, construction is easy, and the construction period is shortened.

Description

technical field [0001] The invention belongs to the field of construction of a comprehensive pipe gallery, and in particular relates to a waterproof construction method outside a cross pipe gallery. Background technique [0002] Such as figure 1 As shown, the cross pipe gallery is at the junction of the main and secondary pipe galleries. Once there is a leak, it will affect the normal use of other pipe galleries. The roof of the main corridor at the junction of the main and secondary corridors is shared with the bottom plate of the secondary corridor. It is difficult to lay waterproof rolls at the corners of the junction between the bottom plate of the secondary conduit corridor and the side wall of the main corridor. If waterproof measures are not in place, it is easy to cause water leakage at this place , and leak-trapping measures are difficult to implement. Contents of the invention [0003] The purpose of the present invention is to provide a waterproof construction...

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Problems solved by technology

[0002] like figure 1 As shown, the cross pipe gallery is at the junction of the main and secondary pipe galleries. Once there is a leak, it will affect the normal use of other pipe galleries

The roof of the main corridor at the junction of the main and secondary corridors is shared with the floor of the secondary corridor. It is difficult to lay waterproof rolls at the junction of the bottom plate of the secondary conduit corridor and the side wall of the main corridor. If the waterproof measures are not in place, it is easy to cause water leakage at this place , and leak-trapping measures are difficult to implement

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