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Volume 36 Issue zk2
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XIE Jian-bin, ZENG Xian-ming, HU Jing-you, WEN Yi-bo, WU Chang-chang. Application of hardening soil model in deep excavations supported by pile-anchor and pile-braced composite supporting structures[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 56-63. DOI: 10.11779/CJGE2014S2010
Citation: XIE Jian-bin, ZENG Xian-ming, HU Jing-you, WEN Yi-bo, WU Chang-chang. Application of hardening soil model in deep excavations supported by pile-anchor and pile-braced composite supporting structures[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(zk2): 56-63. DOI: 10.11779/CJGE2014S2010
shu

Application of hardening soil model in deep excavations supported by pile-anchor and pile-braced composite supporting structures

  • 1. Department of Civil Engineering, Yunnan University, Kunming 650091, China;
    2. The Third Research Institute of the Corps of Engineers, General Staff of PLA, Luoyang 471023, China;
    3. Kunming Junlong Geotechnical Engineering Co., Ltd., Kunming 650021, China

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  • Received Date: July 27, 2014
  • Published Date: July 27, 2014
    Graphical Abstract
    • Abstract
  • Based on the hardening soil model, a deep excavation supported by pile-anchor and pile-braced composite supporting structures is analyzed. The excavation is located in the downtown of Kunming City, and the surrounding environment of the deep foundation pit is complex. The associated parameters of the hardening soil model are designed by consolidated-drained triaxial compression test and consolidation test. Then three-dimensional finite element analysis of the excavation during constructing and supporting processes is carried out using the software of MADIS/GTS. The results of finite element method are compared with the measured data and the calculated results of m-method. The comparison shows that the hardening soil model can be adopted to analyze the deep excavation supported by pile-anchor and pile-braced composite supporting structures. The real deformation mechanism and regularity of foundation excavation can be obtained by using the hardening soil model.
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    • References (15)
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