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Foundation pit supporting structure and construction method

A foundation pit support and construction method technology, which is applied in the direction of foundation structure engineering, excavation, construction, etc., can solve the problem that the depth of the underground diaphragm wall cannot meet the requirements of separating the underground confined water layer, and achieve the effect of meeting the needs of engineering construction

Pending Publication Date: 2022-04-12
SHANGHAI MECHANIZED CONSTR GRP
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Problems solved by technology

[0002] During the enclosure construction of the underground diaphragm wall in the city center, the length of the steel cage far exceeds the size of the site in a narrow site, which makes it impossible to carry out the construction of the underground diaphragm wall normally. After shortening the length of the steel cage according to the site restrictions, the depth of the underground diaphragm wall cannot meet the partition requirements The need for subsurface confined aquifers

Method used

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0034] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated ; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two ...

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Abstract

The invention belongs to the technical field of building engineering construction, and discloses a foundation pit supporting structure and a construction method, and the foundation pit supporting structure comprises an underground diaphragm wall and an MJS construction method cutoff wall. The underground diaphragm wall extends in the circumferential direction of the foundation pit. The MJS construction method cutoff wall extends in the extending direction of the underground diaphragm wall, the top end of the MJS construction method cutoff wall is in waterproof sealing connection with the bottom end of the underground diaphragm wall, and the MJS construction method cutoff wall is used for cutting off a confined water layer. When the length of a reinforcement cage or the height of a crane cannot meet the requirement due to the limitation of a construction site, and the depth of the underground diaphragm wall cannot meet the requirement for separating the confined water layer, the MJS construction method cutoff wall is spliced below the underground diaphragm wall and extends in the extending direction of the underground diaphragm wall, and the MJS construction method cutoff wall is spliced below the underground diaphragm wall. The top end of the MJS construction method cutoff wall is in waterproof sealing connection with the bottom end of the underground diaphragm wall, so that the MJS construction method cutoff wall is matched with the underground diaphragm wall to cut off the confined aquifer, and the engineering construction requirement is met.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to a foundation pit support structure and a construction method. Background technique [0002] During the enclosure construction of the underground diaphragm wall in the city center, the length of the steel cage far exceeds the size of the site in a narrow site, which makes it impossible to carry out the construction of the underground diaphragm wall normally. After shortening the length of the steel cage according to the site restrictions, the depth of the underground diaphragm wall cannot meet the partition requirements The need for subsurface confined aquifers. [0003] Therefore, need badly a kind of foundation pit support structure and construction method, to solve the above problems. Contents of the invention [0004] The purpose of the present invention is to provide a foundation pit support structure and construction method, which can meet the needs of en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D19/18E02D5/34
Inventor 周丹伟潘玉云姚立顺金福强刘其杰张龙姚谷峰
Owner SHANGHAI MECHANIZED CONSTR GRP
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