Deep foundation pit internal supporting fabricated supporting changing construction tool and method

Abstract

The invention provides a deep foundation pit internal supporting fabricated supporting changing construction tool and method. The tool comprises a supporting pile, an upper force transmission belt, afertilizer tank, a lower force transmission belt, an exterior wall structure, a foundation slab, a pre-demounted internal support, an upper preprocessed steel pipe assembly, an assembled inclined strut, a lower preprocessed steel pipe assembly and a concrete pier. The deep foundation pit internal supporting fabricated supporting changing construction constructed through the tool comprises the steps of concrete pier positioning, foundation slab or pre-demounted internal supporting constructing; concrete pier constructing; basement exterior wall constructing; concrete force transmission belt constructing; and upper preprocessed steel pipe assembly and assembled inclined struct mounting, wherein internal supporting demounting and main structure constructing are carried out. The deep foundation pit internal supporting fabricated supporting changing construction tool and method have the advantages that the safety of a foundation pit can be greatly improved; the construction speed can be greatly increased through the construction method; and the construction method accords with the construction idea of environmental protection.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to an assembly-type brace-replacing construction tool and a construction method for inner supports in deep foundation pits. Background technique [0002] With more and more underground buildings, the scale and depth of foundation pit excavation continue to expand, and the safety risks brought about by deep foundation pit construction continue to increase. One of the main safety hazards in deep foundation pit construction is that the excessive deformation of the foundation pit support structure causes the settlement or even collapse of surrounding structures. At present, foundation pits with relatively large depths mostly adopt the support method of internal support + support piles (or underground diaphragm walls, etc., hereinafter referred to as support piles). The construction of the main structure will inevitably conflict with the internal support structure. When th...

AI Technical Summary

Problems solved by technology

In the process of dismantling the internal support, the stress on the support structure will change suddenly, and the support structure at relatively weak positions such as the corner of the foundation pit is very easy to deform too much. If it is not handled properly, it will cause very large losses.

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