Outboard template construction method of post-pouring belt of outer wall of underground structure

Abstract

The invention relates to a building construction method, in particular to an outboard template construction method of a post-pouring belt of an outer wall of an underground structure, which comprises the following steps of: freely taking steel bar wastes produced in a construction site, binding a precast slab reinforcement cage in a single-row two-way binding way, wherein the width is more than that of the post-pouring belt and the length is 1 or 1.2 m; after the reinforcement cage is bound, binding a fixed precast slab steel wire at the intersection of transverse and longitudinal steel bars, wherein the extension length of the steel wire is 400-500 m and the binding position of the steel wire is arranged in a quincunx way; using a 5*10 mm or 10*10 mm wood beam as a precast slab template; after the reinforcement cage is bound and formed and the template is supported, pouring precast slabs when residue concrete is provided on site, wherein the thickness is 50 mm; and when an excessive trough is backfilled, binding the precast slabs on the steel bar of the post pouring belt by using a preserved steel wire, and stacking the precast slabs on the vertical surface of the outer wall one by one. The invention is convenient and simple, saves time and labor, and enables the steel bars and the concrete to be fully utilized, thereby reducing the waste and saving the cost.

Description

Technical field: [0001] The invention relates to a building construction method, in particular to a method for constructing an outer formwork of an exterior wall of an underground structure after pouring. Background technique: [0002] At present, after the construction of the underground structure is completed, the post-cast belt cannot be poured immediately according to the design requirements. The site and other reasons are extremely unfavorable to the construction. In order to ensure the smooth progress of the construction, the fertilizer tank is usually backfilled in advance. On the outside of the post-pouring belt of the external wall, bricklaying molds are used and plastered, then waterproofed, and finally backfilled. The traditional method uses red bricks to build the brick formwork. This method is slow in construction speed, labor-intensive and materials-intensive, and the raw materials of the brick body are rare resources in the country and need to be saved. The ...

AI Technical Summary

Problems solved by technology

The use of brick molds causes a waste of resources

In addition, due to the performance of the red brick itself, if the structure itself has many basement floors, or the basement floor height is high, the use of brick molds at this time may cause the bottom to be crushed, which is not conducive to the stability of the brick mold structure.

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