Foundation pit supporting structure and construction method

Abstract

The invention discloses a foundation pit supporting structure. The structure comprises a plurality of row piles which are uniformly arranged at intervals around the periphery of a foundation pit, andthe tops of the row piles are provided with sloping reinforcing regions; the sloping reinforcing regions comprise horizontal connecting sections, inclined pressing slope sections and slope top hardening sections, and the included angles between the inclined pressing slope sections and the horizontal plane are 40-45 degrees; and vertically arranged reinforcing piles located inside soil bodies are arranged below the inclined pressing slope sections, and the reinforcing piles are uniformly arranged at intervals around the periphery of the foundation pit and are all parallel to the row piles. According to the structure, the row piles and the sloping reinforcing regions are arranged, so that slopes of the foundation pit are well supported; meanwhile, the reinforcing piles are arranged to reinforce the soil bodies, so that the overall stability of the soil bodies in the sloping regions is improved; the sloping reinforcing regions are reasonably divided into three sections so that the side pressure of the soil bodies in the sloping regions to the row piles can be relieved; and the sloping reinforcing regions and the tops of the row piles are connected into wholes to form mutual supportingsystems, so that the overall stability is higher.

Description

technical field [0001] The invention relates to the technical field of foundation pit support, in particular to a foundation pit support structure and a construction method. Background technique [0002] Foundation pit support has always been a particularly important part of tall buildings, and with the increase in building height and the diversification of functions, the functional requirements and quality requirements for the foundation are becoming more and more stringent, which also leads to more and more construction cycles. As time goes by, when there are many large-scale commercial district buildings, the foundation pit is often required to be used for 1-2 years, which undoubtedly poses greater challenges and requirements for the construction and support of the foundation pit. [0003] During the foundation construction period, the foundation pit not only needs to resist the water pressure in the surrounding soil, the dynamic load around the foundation pit, the impact...

AI Technical Summary

Problems solved by technology

[0002] Foundation pit support has always been a particularly important part of tall buildings, and with the increase in building height and the diversification of functions, the functional requirements and quality requirements for the foundation are becoming more and more stringent, which also leads to more and more construction cycles. When the foundation of many large-scale commercial buildings is built, it is often necessary to use the foundation pit for 1-2 years, which undoubtedly poses greater challenges and requirements for the construction and support of the foundation pit

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