Deep foundation pit dismounting and replacing support construction method for building construction

Abstract

The invention relates to a deep foundation pit dismounting and replacing support construction method for building construction, and belongs to the technical field of basement construction. According to the construction method, an inner support is not disassembled in the main body construction stage, main body wall and column steel bars are drilled to penetrate through an inner supporting beam, a support changing system formed by combining a support changing beam and a force transmission plate strip is additionally arranged, main body structure construction is conducted firstly, after the main body is constructed to +/-0.000m, the support is disassembled, and cutting is conducted through a rope saw for support disassembling; by means of the construction method, the safety of the foundation pit in the construction main body stage is powerfully guaranteed, the construction progress is accelerated, machines, manpower, materials and the like are saved, and the safety of the surrounding environment is guaranteed.

Description

technical field [0001] The invention relates to a construction method for dismantling and replacing braces for deep foundation pits for building construction, and belongs to the technical field of basement construction. Background technique [0002] With the rapid development of the economy and the acceleration of the urbanization process, the utilization of urban space gradually tends to the excavation of three-dimensional space, and deep foundation pits continue to emerge. In the construction of deep foundation pit, the process of dismantling and replacing braces has become a difficult problem in construction. In order to solve this technical problem, Application No. 201910635034.0 discloses a deep foundation pit inner-supported assembled support replacement construction tooling and construction method, the tooling includes a support pile, an upper force belt, a fertilizer trough, a lower force belt, an outer wall The structure, base plate, pre-removed inner support, uppe...

AI Technical Summary

Problems solved by technology

In order to solve this technical problem, the application number 201910635034.0 discloses a deep foundation pit support assembly type support replacement construction tooling and construction method, the tooling includes support piles, uploading force belts, fertilizer grooves, downward force belts, outer walls The structure, foundation floor, pre-demolished internal support, upper pre-installed steel pipe assembly, assembled diagonal brace, lower pre-processed steel pipe assembly, and concrete pier are assembled into a single complete power transmission belt through the above components, but the construction period for this type of power transmission belt is set It is long and consumes a lot of materials. It cannot be used as a permanent support structure. It can only be applied to the bottom plate of the foundation pit. The scope of application is limited, which affects the on-site construction