Retaining wall used for foundation pit supporting and construction method for retaining wall

A foundation pit support and construction method technology, which is applied in the direction of foundation structure engineering, excavation, sheet pile walls, etc., can solve the problems of high cost and many consumables, and achieve the effect of low cost and less consumables

Inactive Publication Date: 2017-12-15
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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  • Retaining wall used for foundation pit supporting and construction method for retaining wall
  • Retaining wall used for foundation pit supporting and construction method for retaining wall
  • Retaining wall used for foundation pit supporting and construction method for retaining wall

Examples

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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a retaining wall for foundation pit support includes: foundation pit 1, the foundation pit is barrel-shaped; several pile bodies 2 are arranged in a ring along the pit wall of the foundation pit 1, and mutually Bite together to form a circumferentially closed wall 3; the inner support structure 4 is arranged circularly along the inner wall of the wall 3, and the wall 3 is supported by the inner side of the wall 3 towards the soil A; The bottom end of the pile body 2 is located on the bottom surface of the foundation pit 1 .

[0042] The retaining wall used for foundation pit support 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 annular along the inner wall of the wall body 3 set up.

[0043] The retaining wall used for foundation pit support in this embodiment preferably includes: pile top ring beam 5, which is ring-shaped a...

Embodiment 2

[0051] This embodiment discloses a construction method for a retaining wall used for foundation pit support, including the following steps: a. Set interlocking piles on the leveled construction site, wherein the piles are circular Arrangement; 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 circumferential seal c. Excavate the soil surrounded by the wall to the design depth, and arrange the inner support structure circularly along the inner wall of the wall, wherein the inner support structure is formed by the inner side of the wall forming support to the wall to the soil, and the design depth is above the bottom of the pile; d. Excavating the soil surrounded by the wall above the bottom of the pile to form foundation pit, and the bottom end of the pile body is supported on the bottom surface of the foundation pit. ...

Embodiment 3

[0058] This embodiment also discloses a construction method for a retaining wall used for foundation pit support, which includes the following steps: a. Setting interlocking piles on the leveled construction site, wherein the piles are circular Shape arrangement; b. Insert several prefabricated piles with occlusal structure on the pile position, the prefabricated piles are interlocked together through the occlusal 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 a design depth, and the inner support structure is arranged circularly along the inner wall of the wall, wherein the inner support structure is formed from the inner side of the wall to the soil. The wall forms a support, wherein the design depth is above the bottom of the pile; d. Excavating the soil surrounded by the wall above the bottom of the pile to form a foundation pit, and The bottom end of the pile body is supported...

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PUM

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Abstract

The invention discloses a retaining wall used for foundation pit supporting. A foundation pit is in the shape of circular barrel; the retaining wall comprises a plurality of pile bodies, and an inner support structure, wherein the pile bodies are arranged in an annular mode along the pit wall of the foundation pit, and are engaged with one another to form a peripherally sealed wall body; the inner support structure is arranged in the annular mode along the inner wall of the retaining wall; the inner part of the foundation pit faces towards a soil body to support the wall body; and the bottom ends of the pile bodies are supported on the bottom surface of the foundation pit. With the adoption of the design, the pile bodies are only used as media of a retaining body, the pile bodies do not depend on the soil body anchored under the bottom surface of the foundation pit to generate counter-acting force to absorb side pressure, applied to the pile bodies, of the soil body outside the pile bodies, but transmit the side pressure to an inner support ring beam, and the inner support structure bears more side pressure, so that the effects of strong support and weak piles are achieved. Materials needed for absorbing the side pressure of the soil body by additionally arranging the inner support ring beam are much less than materials needed for inserting the pile bodies into the foundation pit.

Description

technical field [0001] The invention relates to a foundation pit support structure and a construction method, in particular to a retaining wall for foundation pit support 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 ...

Claims

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Application Information

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IPC IPC(8): E02D17/04E02D5/12E02D5/20
CPCE02D5/12E02D5/20E02D17/04
Inventor 刘献刚胡保根屈峰
Owner JIANGXI JIYE SCI & TECH
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