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Foundation pit partition support structure and support method based on foundation pit partition support structure

A technology for supporting structures and foundation pits, which is applied in basic structure engineering, excavation, construction, etc., can solve the problems of high risk of chiseling, and achieve the effect of convenient and fast construction and good application prospects.

Inactive Publication Date: 2017-02-15
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, when the part 6 to be removed needs to be removed, the second-stage foundation pit support 3 is also supported on the part 6 to be removed, and the risk of chiseling is relatively high

Method used

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  • Foundation pit partition support structure and support method based on foundation pit partition support structure
  • Foundation pit partition support structure and support method based on foundation pit partition support structure

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] In the prior art, the supporting structure of the foundation pit partition is as follows: figure 1 As shown, it has been described in detail in the background technology, and will not be repeated here.

[0022] Such as figure 2 As shown, the foundation pit partition support structure provided by the present invention includes the first-stage enclosure device 2, the first-stage main structure 1 inside the first-stage enclosure device, and the first-stage enclosure device 2 outside the first-stage enclosure device 2 away from the first-stage enclosure device 2 The second-stage enclosure device 5, the crown beam 4 on the upper end of the second-stage enclosure device, the top of the first-stage main structure 1 is a roof, and the edge of the roof facing the second-stage enclosure device 5 is provided with multiple or entire cont...

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Abstract

The invention discloses a foundation pit partition support structure and a support method based on the foundation pit partition support structure. The foundation pit partition support structure comprises a primary enclosure device, a primary main structure located on the inner side of the primary enclosure device, a secondary enclosure device and a crown beam located at the upper end of the secondary enclosure device. The foundation pit partition support structure is characterized in that a plurality of buttresses are arranged at the top of the primary main structure at intervals and face the edge of the secondary enclosure device, or a whole continuous buttress is arranged at the top of the primary main structure and faces the edge of the secondary enclosure device, and the buttresses are higher than the primary enclosure device; and a plurality of secondary foundation pit supports are horizontally arranged between the crown beam and the buttresses and located above the primary enclosure device in a spaced mode. The buttresses are used for supporting the secondary foundation pit supports to a top plate of the formed primary main structure, the secondary foundation pit supports are isolated from the primary enclosure device, and thus on the basis of the foundation pit partition support structure, the primary enclosure device can be chiseled away safely, conveniently and quickly.

Description

technical field [0001] The invention relates to the field of underground engineering such as building construction and rail transit, and specifically refers to a partitioned foundation pit support structure and a support method based on the structure. Background technique [0002] Many subway stations and large-scale underground projects often use multiple foundation pits for construction. When the structures of each area are connected, they often face the problems of inconvenient removal of enclosure devices (enclosure walls or enclosure piles) and safety risks. Existing underground projects often adopt the method of partitioned construction. When the foundation pit support in the second-stage construction area is erected, it is generally supported on the enclosure device (enclosure wall or enclosure pile) in the first-stage construction area. When the structure of the first stage is connected, it is necessary to chisel out the enclosure device (enclosure wall or enclosure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 周兵谢婷蜓沈婷蒋晔董俊万勇曹文轩
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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