Pit supporting structure and construction method thereof

Abstract

The invention relates to a pit supporting structure and a construction method thereof. The pit supporting structure comprises pit supporting row piles, water and soil stopping curtains and lateral row piles, wherein the pit supporting row piles are long and short cast-in-place concrete thin-wall pipe piles at intervals; the water and soil stopping curtains and the lateral row piles are cement mixing piles; the water and soil stopping curtains are a row of mutually engaged cement mixing piles; the lateral row piles are a plurality of rows of bidirectionally engaged cement mixing piles; the water and soil stopping curtains are arranged on one side of pit supporting row piles corresponding to the periphery of the pit; and the lateral row piles are arranged at the bottom of the pit on one side of the pit supporting row piles corresponding to the pit. The technical scheme has the effects that a basement structure is convenient to construct, the pit construction period is shortened and the construction cost is saved.

Description

technical field [0001] The invention relates to the technical field of building foundations, in particular to a foundation pit support structure and a construction method thereof. Background technique [0002] With the development of urban construction, high-rise buildings are gradually increasing, and urban buildings are becoming more and more dense. Due to the requirements of the use function and the development of underground space, high-rise buildings are generally designed with a basement with a large plane size and depth. The development of underground space involves the safety of deep building foundation pits, which is especially important for densely built areas located on soft soil foundations. Especially in cities located in coastal alluvial and alluvial plains, the project sites are mostly soft soils, and soil nail walls are often used for foundation pit support, and the foundation pit deformation and slope soil displacement are relatively large, especially in th...

AI Technical Summary

Problems solved by technology

The disadvantage is that the construction, maintenance, replacement and removal of concrete supports prolong the construction period of the foundation pit, increase the cost of the project, and also bring inconvenience to the basement construction

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