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Foundation pit separation construction method

A construction method and technology for foundation pits, which are applied in basic structure engineering, excavation, construction, etc., can solve problems such as construction difficulties of enclosure structures, and achieve the effects of improving construction efficiency, reducing steel consumption, and ensuring safety.

Inactive Publication Date: 2017-06-13
SHANGHAI NO 7 CONSTR
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  • Application Information

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Problems solved by technology

[0002] During the construction, there are often existing buildings around the foundation pit. The existence of the existing buildings makes the construction of the enclosure structure near the existing buildings in the proposed foundation pit very difficult, and it is necessary to set up a large steel trestle bridge. The problem of supporting

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. The technical content and features of the present invention will be described in detail below by referring to the illustrated embodiments in conjunction with the accompanying drawings. It should be further noted that all the drawings are in very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. For the convenience of description, the "up" and "down" described below are consistent with the directions of up and down in the drawings, but this should not be a limitation of the technical solution of the present invention.

[0028] see Figure 1 to Figure 4 , figure 1 It is a structural schematic diagram of the foundation...

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Abstract

The invention discloses a foundation pit separation construction method. The method comprises the following steps: before a foundation pit is excavated, a cast-in-place bored pile is arranged in a foundation pit support for dividing the foundation pit into an earlier construction area of an existing building and an after-construction area near the existing building; a three-axis stirring pile waterproof curtain is arranged on one side, near the existing building, of the cast-in-place bored pile; a reinforced concrete ring beam is arranged at the top of the cast-in-place bored pile to connect with a foundation pit support ring beam; multiple concrete piers are arranged between one side, far from the existing building, of the cast-in-place bored pile and the reinforced concrete ring beam; the construction of the after-construction area is suspended; the earlier construction area is excavated and provided with steel supports; reinforced concrete brackets are arranged on a baseplate of the earlier construction area opposite to the concrete piers; and after the baseplate of the earlier construction area reaches the designed strength, and profile steel inclined throwing supports are arranged between the concrete piers and the reinforced concrete brackets. The method can guarantee the safety of the foundation pit after separation construction, meanwhile, improves the construction efficiency, and saves materials.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a construction method for subdividing foundation pits. Background technique [0002] During the construction, there are often existing buildings around the foundation pit. The existence of the existing buildings makes the construction of the enclosure structure near the existing buildings in the proposed foundation pit very difficult, and it is necessary to set up a large steel trestle bridge. Carry out the problem of supporting. [0003] Therefore, how to provide a foundation pit sub-pit construction method that can ensure the safety of foundation pit enclosure after sub-pit construction, save materials, and reduce costs has become a technical problem that needs to be further improved and optimized in the construction industry. Contents of the invention [0004] The purpose of the present invention is to provide a construction method for foundation pit sub-pit, which can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D17/04E02D19/18
CPCE02D17/02E02D17/04E02D19/18
Inventor 李斌陈喆谭江林作胜朱世平王珏非
Owner SHANGHAI NO 7 CONSTR
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