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Volume 36 Issue zk1
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HU Hai-ying, ZHANG Yu-cheng, LIU Hui-kang, RAO Cai-qin, LUO Yi-dao, LIU Xiao-bin. Case study of super-deep foundation pit of Pingan IFC[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk1): 31-38. DOI: 10.11779/CJGE2014S1005
Citation: HU Hai-ying, ZHANG Yu-cheng, LIU Hui-kang, RAO Cai-qin, LUO Yi-dao, LIU Xiao-bin. Case study of super-deep foundation pit of Pingan IFC[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk1): 31-38. DOI: 10.11779/CJGE2014S1005
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Case study of super-deep foundation pit of Pingan IFC

  • 1. College of Water Conservancy and Civil Engineering, South China Agricultural University, Guangzhou 510642, China;
    2. Guangdong Research Institute of Water Resources and Hydropower, Guangzhou 510610, China;
    3. The Geotechnical Engineering Technology Center of Guangdong Province, Guangzhou 510610, China;
    4. The Emergency Technology Research Center of Guangdong Province for Public Events Guangzhou 510610, China;
    5 Department of Civil Engineering, South China University of Technology, Guangzhou 510640, China;
    6. Shenzhen Construction Quality Supervision Center, Shenzhen 518032, China;
    7. Shenzhen City Foundat ion Eng .Co., Ltd., Shenzhen 518026 , China

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  • Received Date: July 27, 2014
  • Published Date: July 27, 2014
    Graphical Abstract
    • Abstract
  • Pingan IFC is the highest building under construction in South China at present, whose top floor is 588 m high and spire's is 660 m high, with 5 floors under the ground and 118 floors above the ground. The excavation depth of foundation pit is up to -33.8 m, and the surrounding environment is complex. It is subjected to many nearby buildings and subway tunnel at its north side. Therefore, the design and construction of supports for the foundation pit are difficult. The key technical schemes for the design and construction of the foundation pit are introduced. The double-ring inner-supporting structure is used as the inner support system, and the combination of high-pressure jet grouting pile and grouting with sleeve valve pipe method is used to cut off water. Considering the ring inner-supporting structure, the earth is removed at trestle. As a super-deep foundation pit under complex environment, its design and technical solution may provide reference for similar projects.
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    • References (13)
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