Reinforcing method for single-sided shear wall template by top-down method of basement

Abstract

The invention discloses a reinforcing method for a single-sided shear wall template by a top-down method of a basement. The reinforcing method comprises the following steps of earth excavation: constructing earth of the basement in layers from top to bottom, wherein the height in the first stage is 1.5 m, a revetment is finished to 90 degrees, holes are formed in the revetment for positioning, points are distributed as the transverse separation distance is 500 and the longitudinal separation distance is 500, the distance from the distributed points parallel to a first row of anchor rods to thetopmost part is 20 CM, the distance from the distributed points parallel to the last row to the ground is 20 CM and the distances from the anchor rods left and right to the outermost side are 20 CM,too according to the area of the whole poured shear wall; and revetment finishing: arranging reinforcing mesh sheets which shall be firmly fixed to a side slope. The drilled reinforcing steel bar anchor rods are simple to construct, high in tensile resistance and safe and stable, so that the method is high in construction method and convenient for field operation. The perpendicularity and the forming effect of the shear wall can be measured efficiently and accurately, common quality problems of dislocation, die expansion and the like of a single-sided plate are overcome, few materials are input, the cost is low and the method is welcomed by operation workers and management staffs.

Description

technical field [0001] The invention relates to the field of construction technology, in particular to a reinforcement method for a single-side shear wall formwork in a basement by reverse construction. Background technique [0002] In the basement excavation and reverse construction method, when excavating, the underground structure of the main project is used as the foundation pit support structure, and the design and construction method of the underground structure is adopted from top to bottom, that is, when the excavation reaches a certain design elevation, Start to make the main structure first, and then continue to excavate downward until the excavation reaches the design elevation. When constructing shear walls of underground structures, concrete shear walls and other vertical member formwork reinforcements are often encountered due to construction space constraints, and formwork and reinforcement systems can only be installed on one side. The construction of the fo...

AI Technical Summary

Problems solved by technology

The construction of the formwork reinforcement is difficult and the construction speed is slow. If it is not handled properly, it will cause more serious mold expansion and misalignment. The usual method is to use section steel to customize the single-side movable formwork combination tool, but the cost is high, and only use The special part of the basement structure has less turnover times and low cost performance, which is not conducive to material saving and cost control

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