Subway station waterproof off-wall ditch structure and construction method thereof

Abstract

The invention discloses a subway station waterproof off-wall ditch structure and a construction method thereof. The subway station waterproof off-wall ditch structure is arranged on a middle plate on one side of a side wall of a station and located below a construction seam in the side wall; the subway station waterproof off-wall ditch structure comprises a water retaining ridge arranged on the middle plate in the length extension direction of the side wall; a groove is formed between a water baffle and the side wall; a drainage pipeline which extends in the length direction of the groove and is provided with an opening in the upper end face is fixedly arranged in the groove; a space between the outer surface of the drainage pipeline and the inner wall of the groove is filled with waterproof mortar; and a waterproof structure layer is arranged between the waterproof mortar and the inner wall of the groove. According to the subway station waterproof off-wall ditch structure and the construction method thereof, the waterproof effect of an off-wall ditch is guaranteed through the waterproof structure layer, the drainage pipeline with the opening in the upper end face is convenient to install, the gradient is easy to adjust, water cannot make direct contact with the waterproof structure layer, the inner wall of the drainage pipeline is smooth, water drainage is facilitated, and the drainage effect of the off-wall ditch is guaranteed.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a waterproof wall-separating ditch structure of a subway station and a construction method thereof. Background technique [0002] In the waterproof design of subway underground stations, the waterproof level is first-class waterproof, that is, water leakage and wet stains are not allowed. [0003] The wall ditch structure of the subway station is located at the junction of the side wall and the slab, and is mainly used to collect and divert water leakage from the side wall. The structural waterproofing method in the prior art is to use impermeable concrete for the side walls to form a concrete self-waterproof structure; and there is no waterproof design requirement for the slab. Due to the construction process problem, the post-pouring construction of the wall ditch is often carried out after the completion of the main structure, so there are construction joints in...

AI Technical Summary

Problems solved by technology

Due to the construction process problem, the post-pouring construction of the wall ditch is often carried out after the completion of the main structure, so there are construction joints in the construction, and the structure size of the wall ditch is small, and the slope of the wall ditch is not good. Drainage, the construction is difficult, and it is easy to generate accumulated water in the ditch. The accumulated water will leak into the track area through the middle plate or construction joints without self-waterproof ability, which will eventually lead to poor waterproof effect and increase the cost of plugging. It also poses a safety hazard to the operation of the subway

Images