Method for changing support of foundation pit enclosing rib plates

A technology of foundation pit enclosure and ribs, which is applied in excavation, foundation structure engineering, construction, etc., can solve the problems of insufficient, lack of rigidity of horizontal floor, and inability to replace braces, etc., so as to reduce costs, shorten construction period, and reduce construction period ratio Effect

Inactive Publication Date: 2011-04-06
SHANGHAI NO 4 CONSTR
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Problems solved by technology

[0003] Because of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a method for exchanging bracing of the surrounding ribs of a foundation pit. The lack of stiffness causes the problem that the support cannot be replaced, and it is also conducive to the construction of large and high floors of the foundation structure

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  • Method for changing support of foundation pit enclosing rib plates
  • Method for changing support of foundation pit enclosing rib plates

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Embodiment Construction

[0017] The present invention will be further described below according to accompanying drawing and specific embodiment:

[0018] Adopt the method for exchanging braces of foundation pit enclosing rib plate of the present invention, can comprise the following steps during specific on-site implementation:

[0019] 1. Construction enclosure wall

[0020] The enclosure wall is the main force-bearing member that resists the lateral pressure of the soil outside the foundation pit. A horizontal internal support system is installed inside the foundation pit to connect the enclosure walls to each other to realize the transmission of horizontal force.

[0021] After the construction of the enclosure wall is completed, the excavation of the soil in the foundation pit will start when the strength meets the design requirements. When the soil is excavated to the specified depth in the design, the inner reinforcement of the enclosure wall is stripped, the reinforcement of the inner support ...

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Abstract

The invention discloses a method for changing the support of foundation pit enclosing rib plates, which comprises the following steps of: 1) finishing the construction of a foundation pit enclosing wall; 2) finishing the construction of a foundation base plate; 3) manufacturing a trapezoidal rib plate vertical to the enclosing wall at certain intervals along the direction of the enclosing wall; and 4) constructing an enclosing purlin, wherein the enclosing purlin connects all rib plates into a whole, and the trapezoidal rib plates, the enclosing wall and the foundation base plate are connected through reserved or planted steel bars. The method solves the problem that the support cannot be changed due to insufficient rigidity caused by the loss of a horizontal floor plate, is favorable for constructing infrastructure large-story height floors, can effectively shorten the construction period of a foundation pit, reduces the ratio of the construction period of the foundation pit to the whole construction period, and is favorable for reducing cost.

Description

technical field [0001] The invention relates to a method for replacing braces of a foundation pit enclosure protection rib. Background technique [0002] The conventional method of supporting the bottom slab is to remove the concrete support above the bottom slab after all the pouring of the bottom slab is completed. For conventional projects, this method is understandable, but in some projects, the foundation structure is very complex, or due to the need for construction period, the construction must be staggered, so when the foundation floor has not yet formed a whole or part of it, it is necessary to replace the support. The traditional method does not It doesn't apply anymore. Contents of the invention [0003] Because of the above-mentioned problems existing in the prior art, the object of the present invention is to provide a method for exchanging bracing of the surrounding ribs of a foundation pit. The lack of rigidity causes the problem that the support cannot be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02
Inventor 王巍谷志旺邱锡宏张铭黄轶顾靖陈国烽
Owner SHANGHAI NO 4 CONSTR
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