Deep-foundation-pit reservoir and construction method thereof

Abstract

The invention discloses a deep-foundation-pit reservoir. The deep-foundation-pit reservoir comprises a foundation pit, multiple pile bodies and an inner support structure, wherein the foundation pit is in a drum shape; the multiple pile bodies are arranged along the pit wall of the foundation pit in a ringlike manner and occlude with one another, so that a circumferentially-closed barrier wall isformed; the inner support structure is arranged along the inner wall of the barrier wall in a ringlike manner, and the inner support structure is in the direction from the interior of the foundation pit to a soil body, so that the barrier wall is supported; and the bottom ends of the pile bodies are arranged on the bottom face of the foundation pit in a support manner. By means of the deep-foundation-pit reservoir, the pile bodies only serve as a medium of a barrier body; the situation that the pile bodies rely on the soil body anchored below the bottom face of the foundation pit to generate counter-acting force to absorb the side pressure applied by the surrounding soil body outside piles to the pile bodies is avoided, and the side pressure is transmitted to inner support ring beams, so that the inner support structure bears more side pressure; and the effect that the inner support structure is reinforced, and the piles are weakened is achieved. The side pressure of the soil body is absorbed by additionally arranging the inner support ring beams, and the required materials are far fewer than those required for inserting part of the pile bodies into the foundation pit.

Description

technical field [0001] The invention relates to a foundation pit supporting structure and a construction method, in particular to a deep foundation pit reservoir and a construction method thereof. Background technique [0002] At present, with the development of society, urban land resources are becoming more and more scarce. When the buildings above the ground cannot meet people's needs, it will lead to more and more demands for the use of underground space. The current underground space wants to expand the utilization rate. It can only expand its own area horizontally, or increase the depth of underground space vertically. In modern cities, it is obviously impossible to expand the area of ​​underground space horizontally, and it will affect other urban buildings, which makes it difficult to increase the depth of underground space vertically. Depth has been paid more and more attention by architects. At present, most of the deep foundation pits are designed to be square or...

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, the retaining wall structure in which the pile body is inserted below the soil at the bottom of the foundation pit is a retaining wall structure with many consumables and high cost.

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