Case Study of Karst Foundation Treatment for a Foundation Pit Project in Shenzhen

JIANG Yi; WANG Gang; REN Xiaoguang; YANG Jingming; HU Junjie

doi:10.13204/j.gyjzg21043008

Volume 52 Issue 7

Oct. 2022

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JIANG Yi, WANG Gang, REN Xiaoguang, YANG Jingming, HU Junjie. Case Study of Karst Foundation Treatment for a Foundation Pit Project in Shenzhen[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(7): 204-207. doi: 10.13204/j.gyjzg21043008

Citation:

JIANG Yi, WANG Gang, REN Xiaoguang, YANG Jingming, HU Junjie. Case Study of Karst Foundation Treatment for a Foundation Pit Project in Shenzhen[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(7): 204-207. doi: 10.13204/j.gyjzg21043008

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Case Study of Karst Foundation Treatment for a Foundation Pit Project in Shenzhen

doi: 10.13204/j.gyjzg21043008

1. Central Research Institute of Building and Construction (Shenzhen) Co., Ltd., MCC Group, Shenzhen 518055, China;
2. China Jingye Engineering Co., Ltd., Beijing 100088, China

Received Date: 2021-04-30
Available Online: 2022-10-28

Abstract

Abstract

Shenzhen is a karst-prone city in China. The karsts are mainly developed in the eastern region and are mainly covered karsts. The poor engineering geological conditions have brought many unfavorable conditions to the construction projects. In order to analyze the technology of karst foundation treatment in Shenzhen, foundation pit project in Shenzhen was taken as an example. First, the karst geological development of the project site was comprehensively analyzed through detailed geotechnical engineering survey, geological drilling and geophysical exploration. Then, the method of using high-pressure grouting was proposed for karst cave treatment. The overall foundation adopted CFG pile composite foundation + raft foundation to jointly exert the bearing effect of CFG pile and soil between piles, so as to improve the bearing capacity of the karst formation.
- karst foundation,
- foundation treatment,
- CFG piles

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References(16)

References

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