Deep foundation pit underground grain depot and construction method thereof

A construction method and technology for deep foundation pits, which can be used in infrastructure engineering, excavation, artificial islands, etc., and can solve the problems of many consumables and high costs

Inactive Publication Date: 2017-11-07
JIANGXI JIYE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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...

Method used

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  • Deep foundation pit underground grain depot and construction method thereof
  • Deep foundation pit underground grain depot and construction method thereof
  • Deep foundation pit underground grain depot and construction method thereof

Examples

Experimental program
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Embodiment 1

[0043] Such as figure 1 As shown, an underground grain storage with a deep foundation pit includes: a foundation pit 1, the foundation pit is in the shape of a barrel; several pile bodies 2 are arranged circularly along the pit wall of the foundation pit 1, and are interlocked together , forming a circumferentially closed retaining wall 3; the internal support structure 4 is arranged circularly along the inner wall of the retaining wall 3, and the retaining wall 3 is supported by the inner side of the retaining wall 3 toward the soil A; the pile body The bottom end of 2 is located on the bottom surface of the foundation pit 1.

[0044] The deep foundation pit underground grain storage in this embodiment preferably includes: the inner support structure 4 includes at least one inner support ring beam, and the at least one inner support ring beam is annularly arranged along the inner wall of the retaining wall 3 .

[0045] The deep foundation pit underground grain storage in thi...

Embodiment 2

[0053] This embodiment discloses a construction method for an underground grain storage in a deep foundation pit, comprising the following steps: a. setting interlocking piles on the leveled construction site, wherein the piles are arranged in a circle; b. .Drill holes on the pile site to form pile holes, pour concrete or cement soil into the pile holes to form several pile bodies interlocking with each other, and the pile bodies are arranged in a ring to form a circumferentially closed retaining wall c. Excavating the soil surrounded by the retaining wall to the design depth, and circularly arranging the inner support structure along the inner wall of the retaining wall, wherein, the inner support structure is directed from the inner side of the retaining wall to the soil forming support for the retaining wall, and the design depth is above the bottom of the pile; d. Excavating the soil surrounded by the retaining wall above the bottom of the pile to form a foundation pit, An...

Embodiment 3

[0060] This embodiment also discloses a construction method for an underground grain storage in a deep foundation pit, comprising the following steps: a. setting interlocking piles on the leveled construction site, wherein the piles are arranged in a circle; b. Insert several prefabricated piles with an interlocking structure on the pile position, the prefabricated piles are interlocked together through the interlocking structure, and the prefabricated piles are arranged in a ring to form a closed retaining wall; c. The soil surrounded by the retaining wall is excavated to the design depth, and the inner support structure is arranged circularly along the inner wall of the retaining wall, wherein the inner support structure is formed by the inner side of the retaining wall towards the retaining wall Support, wherein, the design depth is above the bottom of the pile body; d. Excavate the soil surrounded by the retaining wall above the bottom end of the pile body to form a foundat...

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PUM

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Abstract

The invention relates to a deep foundation pit underground grain depot. The deep foundation pit underground grain depot comprises a foundation pit, a plurality of pile bodies and an inner support structure, wherein the foundation pit is in a shape of a drum; the plurality of pile bodies are circularly arranged along the pit wall of the foundation pit and are engaged with each other so as to form a circumferentially-closed retaining wall; the inner support structure is circularly arranged along the inner wall of the retaining wall so as to support the retaining wall from the interior of the foundation pit to soil; and the bottom ends of the pile bodies are supported to the bottom surface of the foundation pit. By adopting the design, the pile bodies are only used as media of a blocking body, side pressure which is applied to the pile bodies by soil around piles is not absorbed by the pile bodies by virtue of counterforce generated by soil which is anchored under the bottom surface of the foundation pit, but the side pressure is transferred to an inner support ring beam, and more side pressure is borne by the inner support structure, so that the effects of strong support and weak piles are achieved. Materials required for absorbing the side pressure of the soil by the additional inner support ring beam are far less than materials required for inserting 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 an underground grain storage for a deep foundation pit 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 d...

Claims

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Application Information

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IPC IPC(8): E02D29/045E02D17/04E02D5/18E02D5/20
CPCE02D5/187E02D5/20E02D17/04E02D29/04
Inventor 刘献刚胡保根屈峰
Owner JIANGXI JIYE SCI & TECH
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