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Volume 34 Issue 10
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WANG Wei-dong, WANG Hao-ran, XU Zhong-hua. Simplified method of deformation prediction for excavations retained by embedded walls in Shanghai soft soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(10): 1792-1800.
Citation: WANG Wei-dong, WANG Hao-ran, XU Zhong-hua. Simplified method of deformation prediction for excavations retained by embedded walls in Shanghai soft soil[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(10): 1792-1800.
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Simplified method of deformation prediction for excavations retained by embedded walls in Shanghai soft soil

  • (1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Department of Underground Structure & Geotechnical Engineering, East China Architectural Design & Research Institute, Shanghai 200002, China; 3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China)

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  • Received Date: October 19, 2011
  • Published Date: November 13, 2012
    Graphical Abstract
    • Abstract
  • Deformation prediction of excavations is one of the core contents in analyzing their effect on environment. 65 case histories of excavations retained by embedded walls in Shanghai are collected and divided into different groups. Plane strain finite element models are set up to simulate the construction procedures of excavations retained by embedded walls of different groups. The parameters of HS-Small model for Shanghai typical soil layers are got from laboratory tests and back analysis. The simplified calculation formulas considering system stiffness, excavation depth, excavation width for the maximum lateral deformation of embedded walls and the maximum ground surface settlement are deduced by normalizing 108 FEM results. The lateral deformation profile of embedded walls and the ground surface settlement profile behind the embedded walls are provided. The procedure of adopting the simplified analysis method is also illustrated. Comparison of the monitored deformations of 7 case histories and predicted deformations using the simplified analysis method reveals that the proposed simplified method is suitable for analyzing deformation of deep excavations in Shanghai.
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    • References (23)
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