Construction method for basement floor post-cast strip waterproofing structure

Abstract

The invention discloses a construction method for a basement floor post-cast strip waterproofing structure and belongs to the technical field of waterproofing of buildings. The construction method comprises the following steps: laying a main drain pipe and a branch drain pipe in a water filtering tank to a floor sump, fully laying graded broken stone in the water filtering tank to form a broken stone water filtering layer, arranging mortar stop blocks on two sides at the lower part of a post-cast strip, and mounting floor reinforcing bars; mounting mortar stop blocks on two sides at the upper part of the post-cast strip after mounting a post-cast strip side form; and pouring post-cast strip concrete after pouring floor concrete on two sides of the post-cast strip, and curing concrete under a strip-film heat and moisture preservation condition for not less than 14 days. The construction method provided by the invention can reduce water pressure of a basement floor, realizes the waterproofing function of the basement floor post-cast strip and guarantees the pouring quality of concrete.

Description

technical field [0001] The invention belongs to the technical field of building waterproofing, and in particular relates to a construction method for a post-cast waterproof structure of a basement bottom plate. Background technique [0002] In the construction of large-scale basement structures, it is necessary to set up post-casting belts to solve the problems of poor settlement and reduce shrinkage stress. The structural design and construction technology of post-casting belts will affect the construction quality of the entire basement structure, and even affect the normal use function. At present, the waterproof construction of the basement bottom slab post-casting belt mainly adopts the construction method of plugging, and the structural measures of pre-embedding steel plate waterstops in the bottom slab and setting a waterproof layer at the bottom of the slab, but there are still different degrees of seepage in the basement bottom slab post-casting belt. leakage situati...

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Problems solved by technology

[0002] In the construction of large-scale basement structures, it is necessary to set up post-casting belts to solve the problems of poor settlement and reduce shrinkage stress. The structural design and construction technology of post-casting belts will affect the construction quality of the entire basement structure, and even affect the normal use function

At present, the waterproof construction of the basement bottom slab post-casting belt mainly adopts the construction method of plugging, and the structural measures of pre-embedding steel plate waterstops in the bottom slab and setting a waterproof layer at the bottom of the slab, but there are still different degrees of seepage in the basement bottom slab post-casting belt. Leakage

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