Method for temporary water stopping and soil retaining construction of post-cast strips of basement

Abstract

The invention provides a method for temporary water stopping and soil retaining construction of post-cast strips of a basement. The method mainly comprises the following steps that 1, water stopping construction at the post-cast strip of a bottom board is carried out, specifically, a bottom board foundation portion is arranged, a pouring formwork of the bottom board is manufactured, bottom board steel bars are arranged in the pouring formwork, a first non-disassembling formwork and a first water stopping steel plate are provided, the first non-disassembling formwork is fixed, and concrete is poured for the bottom board; 2, water stopping and soil retaining construction at the post-cast strip of an external wall, specifically, a blocking precast block mold is manufactured, steel bars are embedded in the precast block mold, pouring of blocking precast blocks is carried out, the embedded steel bars of the blocking precast blocks are spot-welded to a post-cast strip reinforcing mesh on the external wall, a waterproof coiling material is laid on the upper surface of each blocking precast block, and backfilling of the periphery of a foundation pit is carried out; and 3, water stopping construction at the post-cast strip of a floor. The method has the beneficial effects that the water-free environment in the basement is ensured by carrying out temporary closed water stopping construction on the post-cast strips of the basement bottom board, the external wall and the floor, the number of construction procedures is small, the construction period is shortened, and the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of basement construction, in particular to a construction method for a basement post-cast belt for temporary water and soil retention. Background technique [0002] In construction engineering, the basement is a very important and common part. It is mainly used for garage parking or business. The backfilling around the foundation pit can only be done after the basement post-casting tape is constructed. It takes a long time from the start of the foundation pit support construction to the completion of the basement post-pouring belt. The foundation pit support works for too long before the foundation pit is backfilled, and there are certain safety hazards. For example, when the basement post-pouring belt is not poured, the groundwater will Seep into the basement from the rear pouring zone of the floor, and rainwater will also flow into the basement from the rear pouring zone of the outer wall and floor (roof),...

AI Technical Summary

Problems solved by technology

During this period, there will be many rainfalls, and the deformation of the foundation pit will be accelerated because it cannot be backfilled; and groundwater and rainwater will flow into the basement from the post-poured belt, resulting in long-term water accumulation in the foundation pit and the basement

For the safety of the foundation pit and the water-free environment in the basement, it is necessary to pump and drain the foundation pit and the basement for a long time, which not only affects the normal construction of the basement, but also increases the construction cost and prolongs the construction period; , which will delay the start time of buildings under construction

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