Waterproof structure and construction method for opening of newly-built structure outside existing underground structure

Abstract

The application discloses a waterproof structure for an opening of a newly-built structure connected to an existing underground structure and a construction method, which comprises an existing structure, a connected structure and a ground wall; an inner lining wall of the existing structure connected to the ground wall is provided with a connecting opening connected to the connected structure; a water stop steel plate is arranged between the connecting opening and the corresponding connected structure to form waterproofing. During construction, the ground wall and the existing structure are firstly constructed, and the water stop steel plate belonging to the existing structure is arranged; then, a breaking embedded part embedded in the ground wall is used to break the part of the ground wall which needs to be built into the connected structure, and the corresponding steel bars are cut; finally, the water stop steel plate belonging to the connected structure is arranged, and the connected structure is poured. The waterproof structure and the processing method can minimize pollution, improve construction efficiency, completely cut off the water seepage path of the opening interface between the existing underground structure and the newly-built connected structure, and ensure the waterproof effect of the whole structure.

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