Continuous construction method of aluminum alloy formwork for comprehensive pipe gallery

Abstract

The present invention specifically proposes a continuous construction method for aluminum alloy formwork for the comprehensive pipe gallery, wherein the second pouring construction of the first section of the comprehensive pipe gallery is carried out simultaneously with the first pouring construction of the second section of the comprehensive pipe gallery, which speeds up The construction speed shortens the construction period. At the same time as the aluminum alloy formwork for the wall and roof of the first section of the comprehensive pipe gallery is installed, the bottom formwork structure removed from the first section of the comprehensive pipe gallery is used to carry out the construction of the bottom plate and guide wall of the second section of the comprehensive pipe gallery. ;When the concrete strength reaches 1.2Mpa, the inner wall formwork and the outer wall formwork are removed, and transported to the next construction section; when the concrete pouring is completed and the strength reaches 50%~75%, the top formwork is removed, and the jacking and longitudinal support rods are retained. After the concrete strength reaches 100%, it will be demolished. At the same time, the construction of the bottom plate and guide wall of the second section of the comprehensive pipe gallery will be completed, and the demolished wall and roof aluminum alloy formwork will continue to be constructed for the second section of the comprehensive pipe gallery wall and roof. In this way, continuous cycle operation is realized.

Description

technical field [0001] The invention relates to the construction of an underground comprehensive utility gallery, in particular to a continuous construction method of an aluminum alloy formwork used for the comprehensive utility gallery. Background technique [0002] As a construction facility built underground in the city to accommodate urban engineering pipelines, the pipe gallery is an important part of urban infrastructure construction. The comprehensive pipe gallery, that is, a common ditch and a common pipeline, is a tunnel space built underground in the city. Communication, gas, heating, water supply and drainage and other engineering pipelines are integrated to achieve unified planning. [0003] At present, two pourings are usually used in the construction of the pipe gallery, that is, from the bottom to the top, the lower part of the guide wall is poured first, and then the remaining part is poured. When the guide wall is poured, the outer formwork is mostly made o...

AI Technical Summary

Problems solved by technology

Among them, the wooden formwork requires more supporting components; it takes a long time to set up and remove the formwork, and the turnover efficiency is low; the erection, transfer and disassembly of the formwork all require more labor costs; Phenomena such as slurry leakage and mold expansion are prone to occur, resulting in poor molding effect after mold removal, and common quality problems such as wrong platform, honeycomb, and pockmarked surface are prone to occur

Wood-plastic molds also require more labor costs and supporting components; the turnover efficiency is low; and their rigidity is poor, and mold expansion is prone to occur during pouring, and the molding effect is average

Due to the outstanding turnover characteristics and good construction quality of aluminum formwork, it has broad market prospects in the application of large-scale pipe gallery standard section structures, but aluminum formwork also requires more labor; the turnover speed is slightly faster than wooden formwork, but the overall efficiency is not good. high

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