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Foundation pit supporting structure and construction method thereof

A foundation pit support and support structure technology, which is applied in foundation structure engineering, excavation, construction, etc., can solve the problem of low material utilization rate, achieve high material utilization rate, strong anti-overturning ability of support, and fast construction speed Effect

Pending Publication Date: 2018-08-10
JIANGSU UNIV OF SCI & TECH IND TECH RES INST OF ZHANGJIAGANG
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the defect of low material utilization rate of the foundation pit support structure in the prior art

Method used

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  • Foundation pit supporting structure and construction method thereof
  • Foundation pit supporting structure and construction method thereof
  • Foundation pit supporting structure and construction method thereof

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specific Embodiment approach

[0078] As a specific implementation of this embodiment, it specifically includes:

[0079] 1) According to the soil layer parameters provided by the geological exploration report, combined with the depth of the foundation pit, and considering the influence of various factors such as precipitation, determine the length of the steel sheet pile 10, the supporting waist beam, the internal supporting structure 23 and the length control device 24 with a force-increasing function. parameter. In the embodiment, transmission gear set 242 power gear 24210 teeth number Z 1 =20, modulus m 1 =2.5, steering gear 24211 tooth number Z 2 =60, modulus m 2 =2.5, transmission ratio i 1 = 3; Axial rotation gear 24213 teeth number Z 1 =2, modulus m 1 =3, power over gear 24214 tooth number Z 2 =100, modulus m 2 = 3, transmission ratio i 2 =50; power transmission gear 24215, plane transition gear 24218, and hydraulic rod homing power gear 24219 have 32 teeth Z, and modulus m is 7; hydraulic ...

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Abstract

The invention relates to the technical field of civil engineering, in particular to a foundation pit supporting structure and a construction method thereof. The structure comprises steel plate piles which are oppositely arranged, and supporting pieces fixed between the steel plate piles; and the supporting pieces are of a splicing structure and are adjustable in length. According to the foundationpit supporting structure, the supporting piece with the adjustable length is arranged so that the supporting piece can automatically control the axial force of the supporting piece, displacement control of the foundation pit supporting structure can be achieved according to the deformation of a foundation pit, and a relatively wide application range is achieved; and in addition, the supporting piece of the splicing structure can avoid the welding process in the construction process, so that the construction process is simple, and the material utilization rate is high.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a foundation pit support structure and a construction method thereof. Background technique [0002] The foundation pit support is to ensure the safety of the underground structure construction and the surrounding environment, and the support, reinforcement and protection measures are adopted for the side wall of the foundation pit and the surrounding environment. Currently commonly used support structures include underground diaphragm walls, row piles, steel sheet piles, soil nailed walls, and natural grading. Among them, support forms such as underground diaphragm walls, row piles, and soil nail walls have good support reliability, but after the construction is completed, some components still remain underground, which will affect the underground environment. Although the steel sheet pile has the advantage of being reusable, its rigidity is small, so it is...

Claims

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Application Information

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IPC IPC(8): E02D17/04
CPCE02D17/04
Inventor 王林张晓五黄献文刘平刘新宇刘顺青仇诗雨刘宇
Owner JIANGSU UNIV OF SCI & TECH IND TECH RES INST OF ZHANGJIAGANG
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