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Plugboard type foundation pit supporting frame and supporting method thereof

A foundation pit support and plug-in technology, which is used in excavation, infrastructure engineering, construction, etc., can solve the problems of inability to use directly, high cross-sectional size, and large difference in the moment of inertia of the main shaft, and achieves easy operation and improved bending resistance. performance, the effect of controlling the deformation of the foundation pit

Pending Publication Date: 2018-09-07
TIANJIN JIANCHENGJIYE GRP
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  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, the present invention aims to propose a plug-in type foundation pit support frame to solve the problem that the existing I-beams have relatively high and narrow cross-sectional dimensions, and the moment of inertia of the two main shafts of the cross-section differs greatly. Problems that cannot be directly used in foundation pit construction

Method used

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  • Plugboard type foundation pit supporting frame and supporting method thereof
  • Plugboard type foundation pit supporting frame and supporting method thereof
  • Plugboard type foundation pit supporting frame and supporting method thereof

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a plugboard type foundation pit supporting frame and a supporting method thereof. The plugboard type foundation pit supporting frame comprises a supporting frame body and plugboards. The supporting frame body of an integral structure with the I-shaped cross section. The supporting frame body comprises a left side plate, a web plate and a right side plate. The left side plateand the right side plate are fixedly mounted on the two sides of the web plate correspondingly. The inner wall of the left side plate and the inner wall of the right side plate are both provided witha plurality of insertion grooves for insertion of the plugboards. Each insertion groove is formed by welding two fixed-length steel bars. According to the plugboard type foundation pit supporting frame and the supporting method thereof, the supporting frame body serves as a slanted supporting point and is constructed obliquely to replace a horizontal brace to improve the bending resistance of support piles, deformation of a foundation pit is effectively controlled, and the construction space is fully saved. The horizontal toppling resistance of a supporting system and the ending resistance ofthe support piles are greatly improved.

Description

technical field [0001] The invention belongs to the field of foundation pit support, in particular to a plug-in type foundation pit support frame and a support method thereof. Background technique [0002] The existing foundation pit support forms (methods) mainly include grading, gravity retaining wall, soil nail wall, pile row, underground diaphragm wall, inverted arch wall, etc. Sometimes they can be used alone or in combination, depending on the geological conditions. , the support forms adopted are also different. Under the form of pile support, because the surrounding environment of the foundation pit is complex, and there are important protection objects on the ground and underground, the design of the pile row cantilever (anti-slide pile) cannot meet the safety requirements of the foundation pit (requirement ), and auxiliary measures such as horizontal support must be added to control the displacement and deformation of the foundation pit soil during excavation and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 李刚刘永超崔凤祥刘洁
Owner TIANJIN JIANCHENGJIYE GRP
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