Deep foundation pit underground warehouse and construction method thereof

A construction method and technology for deep foundation pits, which are applied in infrastructure engineering, excavation, artificial islands, etc., can solve the problems of high cost and many consumables, and achieve the effect of low cost and less consumables.

Inactive Publication Date: 2017-11-17
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 soil at the bottom of the foundation pit is a retaining wall structure with many consumables and high cost.

Method used

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  • Deep foundation pit underground warehouse and construction method thereof
  • Deep foundation pit underground warehouse and construction method thereof
  • Deep foundation pit underground warehouse and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a deep foundation pit underground warehouse, comprising: a foundation pit 1, the foundation pit is in the shape of a barrel; several piles 2 are arranged circularly along the pit wall of the foundation pit 1, and are interlocked together, form 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 2 The bottom end of is located on the bottom surface of the foundation pit 1 .

[0042] The deep foundation pit underground storeroom 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 .

[0043] The deep foundation pit underground warehouse of this embodiment preferably in...

Embodiment 2

[0051] This embodiment discloses a construction method for an underground storehouse in a deep foundation pit, comprising the following steps: a. Setting interlocking pile positions on a leveled construction site, wherein the pile positions are arranged in a circle; b. Drill holes on the pile positions 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. Excavate the soil surrounded by the retaining wall to the design depth, and arrange the inner support structure circularly along the inner wall of the retaining wall, wherein the inner support structure is opposed to the soil by the inner side of the retaining wall The retaining wall forms a support, and the design depth is above the bottom of the pile body; d. Excavating the soil surrounded by the retaining wall above the bottom end of the pile body to form a...

Embodiment 3

[0058] This embodiment also discloses a construction method for a deep foundation pit underground storehouse, comprising the following steps: a. setting interlocking pile positions on the leveled construction site, wherein the pile positions 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, the prefabricated piles are arranged in a ring and form a closed retaining wall; c. The soil surrounded by the 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 supported by the inner side of the retaining wall to the soil , wherein, the design depth is above the bottom of the pile body; d. excavate the soil surrounded by the retaining wall above the bottom of the pile body to form a foundation pit, and make the pile...

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PUM

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Abstract

The invention relates to a deep foundation pit underground warehouse. The deep foundation pit underground warehouse comprises a barrel-shaped foundation pit, a plurality of pile bodies and an inner support structure, the multiple pile bodies are annularly arranged along the pit wall of the foundation pit and are meshed together to form a circumferential sealed barricade, and the inner support structure is annularly arranged along the inner wall of the barricade and forms supporting to the barricade from the interior of the foundation pit to a soil body; and the bottom ends of the pile bodies are supported to the bottom face of the foundation pit. By means of the design, the pile bodies only serve as media of the barricade, the pile bodies do not absorb side pressure of the soil body around the outsides of the pile bodies to the pile bodies depending on counter-acting force generated by the soil body anchored below the bottom face of the foundation pit, the side pressure is transmitted to an inner support ring beam, more side pressure is borne by the inner support structure, and support strengthening and pile weakening effects are achieved. Materials needed by additionally arranging the inner support ring beam for absorbing the side pressure of the soil body are far fewer than materials needed by a part for inserting the pile bodies into the foundation pit. In this way, by means of the design, on the premise that the same soil stopping capacity is achieved, consumed materials are few, and cost is lower.

Description

technical field [0001] The invention relates to a foundation pit support structure and a construction method, in particular to an underground warehouse 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 designed...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D29/045
CPCE02D17/04E02D29/045E02D2200/1607
Inventor 刘献刚胡保根屈峰
Owner JIANGXI JIYE SCI & TECH
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