Pit supporting system and installation method

A technology of support system and installation method, applied in excavation, infrastructure engineering, construction, etc., can solve the problems of low installation accuracy, difficult construction, labor and time consuming, etc., to improve project quality, speed up foundation pit construction, reduce The effect of construction costs

Active Publication Date: 2012-02-08
SHANGHAI CONSTR NO 5 GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a foundation pit support system and installation method to solve the problems in the prior art that the hoisting construction of the foundation pit steel support is difficult, labor-intensive and time-consuming, the installation accuracy is not high, and the axial force cannot be applied quickly

Method used

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  • Pit supporting system and installation method
  • Pit supporting system and installation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment （ 1

[0025] figure 1 It is a structural schematic diagram of Embodiment 1 of the foundation pit support system of the present invention, please refer to figure 1 , a foundation pit support system, comprising a telescopic steel support 2 including a steel pipe support 21 and a seat box 23, the seat box 23 is installed on one end of the steel support 21, one side of the seat box 23 is open, the support The opening side of the seat box 23 is located on the side opposite to the connecting part of the steel pipe support 21 and the support box 23, a jack 22 is placed in the support box 23, and the top of the piston of the jack 22 is exposed to the opening side, and is offset against the first steel plate 11 , the bottom of the jack 22 abuts against the connection part, and a jack 22 is installed in the support box 23 so that the length of the telescopic steel support 2 can be adjusted by operating the jack 22, and the other side of the steel pipe support 21 is connected to a joint 24 , ...

Embodiment （ 2

[0029] figure 2 It is a structural schematic diagram of the first support of the foundation pit support system of the present invention, please refer to figure 2 , on the basis of the above-mentioned embodiments, the first support 3 of the foundation pit support system of the present invention is specifically a corbel support, comprising: two corbel rib plates 31 installed in parallel on the first steel plate 11, installed A plurality of beef hamstring side panels 33 on the sides of the two beef hamstring panels 31, the two beef hamstring panels 31 are perpendicular to the plate surface of the first steel plate 11, and the plurality of beef hamstring side panels 33 are perpendicular to the two cow hamstring panels 31 , two hamstring plates 31 are fixedly installed on the plate surface of the first steel plate 11 by welding, and a panel 32 is horizontally installed on two hamstring plates 31 and a plurality of hamstring side plates 33, and the bottom surface of the panel 32 ...

Embodiment （ 3

[0031] image 3 It is a structural schematic diagram of the second support of the foundation pit support system of the present invention, please refer to image 3, on the basis of the above embodiments, the second support 4 of the foundation pit support system of the present invention is specifically a steel box support, including: at least one triangular ribbed plate 42 is installed on the plate surface of the second steel plate 12, and the triangular The ribbed plate 42 is installed on the plate surface of the second steel plate 12 by welding, the triangular ribbed plate 42 can be a triangular steel plate, and the triangular ribbed plate 42 is fixed more firmly by welding, so that the triangular ribbed plate 42 can withstand upward and downward pressure, at least one triangular ribbed plate 42 is equipped with a shelf 41, and the triangular ribbed plate 42 is equipped with a shelf 41 to support the joint head sealing plate, and the joint joint 24 can be placed on the shelf ...

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PUM

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Abstract

The invention provides a pit supporting system and an installation method. The pit supporting system comprises a diaphragm wall which is arranged on the surface of a pit body, wherein a first steel plate is longitudinally arranged on one side of the diaphragm wall, a second steel plate is arranged on the diaphragm wall on the side opposite to the side of the first steel plate, a first support is installed on the first steel plate, a second support is installed on the second steel plate, and the first support and the second support are arranged at the same height of a pit; and the two ends of a retractable steel support are respectively arranged on the first support and the second support, and the first steel plate is abutted against the second steel plate. By arranging the supports on the diaphragm wall in the pit to lift the retractable steel support, the effects of reducing construction cost, improving engineering quality, accelerating pit construction and effectively controlling pit deformation are achieved.

Description

technical field [0001] The invention relates to a support system and an installation method, in particular to a foundation pit support system and an installation method. Background technique [0002] The industry standard of the People's Republic of China "Technical Regulations for Building Foundation Pit Support" JGJ120-99 defines the foundation pit support as follows: In order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, the support adopted for the side wall of the foundation pit and the surrounding environment Blocking, reinforcement and protection measures. [0003] Whether it is a deep foundation pit project for a high-rise building or a subway, since it is excavated in the city, there are usually various structures such as traffic arteries, built buildings or pipelines around the foundation pit, which involves the excavation of the foundation pit. A very important content is to protect the safe u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/04E02D29/02
Inventor 王正平李立顺吕达高顺成
Owner SHANGHAI CONSTR NO 5 GRP CO LTD
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