Foundation pit waterproof curtain and construction method thereof

Abstract

The invention relates to the field of foundation pit building engineering, in particular to a foundation pit waterproof curtain and a construction method thereof. The foundation pit waterproof curtain comprises a foundation pit side wall, a waist beam and slope protection piles, a prefabricated groove is formed in the foundation pit side wall, a fixing mechanism is arranged in the prefabricated groove, the fixing mechanism comprises a prefabricated block, an inserting rod, a rotating rod and a driving rod, and the prefabricated block is fixedly connected to the inner wall of the prefabricated groove; an inserting groove is formed in the prefabricated block, the inserting rod can be inserted into an inner cavity of the inserting groove, a first storage groove is formed in the inserting rod, a first penetrating hole is formed in the side wall of the first storage groove, a first inserting groove is formed in the side wall of the prefabricated groove, an inserting block is arranged in the first penetrating hole, and the inserting block can be inserted into the first inserting groove; a driving assembly is arranged in the first storage groove; the fixing mechanism further comprises a connecting assembly. The foundation pit waterproof curtain has the effects that the possibility that the part, in the side wall of the foundation pit, of an anchor rod is shaken is reduced, then the possibility that the anchor rod is separated from the side wall of the foundation pit is reduced, and therefore the fixing strength of the slope protection pile is improved.

Description

technical field [0001] The application relates to the field of foundation pit construction engineering, in particular to a foundation pit water-stop curtain and a construction method thereof. Background technique [0002] At present, the water-stop curtain refers to a concept, which is the general term for the water-stop series around the main body of the project. It is a continuous water-stop body used to prevent or reduce the groundwater on the side wall of the foundation pit and the bottom of the foundation pit from flowing into the foundation pit. When excavating deep foundation pits for subway stations in areas with abundant groundwater, when the groundwater outside the pits falls in the foundation pits, due to the influence of water level difference and soil creep, the water level will change, and the water in the aquifer will flow into the foundation pits. The side wall flow causes leakage on the side wall of the foundation pit and affects the stability of the founda...

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor believes that the anchor rod is directly driven into the side wall of the foundation pit. After a long time of use, the slope protection pile may shake, which may cause the part of the anchor rod in the side wall of the foundation pit to loosen. This in turn increases the possibility of separation between the anchor rod and the side wall of the foundation pit, thereby reducing the fixing strength of the slope protection pile

Images