Foundation pit waterproof curtain and construction method thereof

Abstract

The invention relates to the field of constructional engineering, and discloses a foundation pit waterproof curtain and a construction method thereof. The foundation pit waterproof curtain comprises a plurality of water stop columns, wherein the plurality of water stop columns are engaged with one another, reinforcement cages I are pre-buried in the water stop columns, one end of the reinforcement cages I extend to the positions above the top surfaces of the water stop columns, connecting beams are poured among the tops of the plurality of water stop columns, reinforcement cages II are pre-buried in the connecting beams, a plurality of bundles of steel bar groups are inserted into the reinforcement cages II, one end of each steel bar group penetrates through the connecting beams and are located on the side, away from a foundation pit, of the waterproof curtain, and the other end of each steel bar group is located in the foundation pit. The foundation pit waterproof curtain has the effect of reducing deformation of the waterproof curtain caused by side pressure so as to increase the stability of the waterproof curtain.

Description

technical field [0001] The application relates to the field of construction engineering, in particular to a foundation pit water-stop curtain and a construction method thereof. Background technique [0002] The water-stop curtain 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 side wall of the foundation pit and groundwater at the bottom of the foundation pit from flowing into the foundation pit. Foundation pit enclosure is generally divided into three parts. The first part is the retaining pile, which mainly plays the role of a retaining wall. The form may be a reinforced concrete pile or other forms of piles. There is a certain gap between the piles, but they can retain the soil. The second part is the water-stop curtain part, whose function is to consolidate the soil behind the retaining wall and block the exchange of water layers inside and outside the foundation pit, whi...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that: the above-mentioned water-stop curtain is a curtain composed of high-pressure rotary grouting piles, and when there is a large downward pressure outside the foundation pit, the soil outside the foundation pit will exert lateral pressure on the curtain, Side pressure can easily cause the curtain to deform, thereby affecting the stability of the curtain

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