Title:
FOUNDATION PIT SUPPORTING SYSTEM AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/196449
Kind Code:
A1
Abstract:
Disclosed is a foundation pit supporting system, comprising a supporting wall, which is located on the edge of a foundation pit and is formed by inner side piles, and a composite pile, which is located on the side of the supporting wall away from the foundation pit; the composite pile comprises a jet grouting pile and a pipe pier located in the jet grouting pile; an anchor cable is provided between the supporting wall and the composite pile; one end of the anchor cable is fixedly connected to the pipe pier, and the other end of the anchor cable penetrates through the supporting wall and then is connected to an enclosing purlin; and the anchor cable extends downwards from the enclosing purlin along the direction of inclination and is connected to the pipe pier. Also disclosed is a construction method for the described foundation pit supporting system. A composite pile formed by a pipe pier and a jet grouting pile is provided in the present application, and the pipe pier is used for fixing an anchor cable so that the anchor cable has a stable fixing point in a soil body. External force borne by the pipe pier is transmitted to the jet grouting pile, and the jet grouting pile provides larger counter force for the pipe pier, thus the displacement of the pipe pier under the pulling force of the anchor cable is avoided, and the prestress of the anchor cable is reduced. Therefore, the tension on the enclosing purlin is reduced, and the safety of the foundation pit is affected.
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Inventors:
LI RENMIN (CN)
LIU FEI (CN)
WANG JIANLAN (CN)
LIU XIAOBO (CN)
WANG TAO (CN)
LIU FEI (CN)
WANG JIANLAN (CN)
LIU XIAOBO (CN)
WANG TAO (CN)
Application Number:
PCT/CN2020/102442
Publication Date:
October 07, 2021
Filing Date:
July 16, 2020
Export Citation:
Assignee:
JIANGSU SOUTH&EAST GEOTECH TECH CO LTD (CN)
International Classes:
E02D17/04
Foreign References:
| CN111335329A | 2020-06-26 | |||
| CN107190756A | 2017-09-22 | |||
| CN109295986A | 2019-02-01 | |||
| CN108411926A | 2018-08-17 | |||
| KR20190036591A | 2019-04-05 | |||
| US5244316A | 1993-09-14 |
Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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