›› 2006, Vol. 27 ›› Issue (12): 2208-2212.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Analysis of sheltering effects of previously driven piles on soil displacements in soft soils

WU Xiao-feng1, 2, WANG Hao3, WEN Xin-lun4   

  1. 1. Key Laboratory of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Department of Geotechnical Engineering, School of Civil Engineering, Tongji University, Shanghai 200092, China; 3. Vndergrond Space Design Institute, SMEDI, Shanghai 200092, China; 4. Shanghai Foundation Engineering Company, Shanghai 200002, China
  • Received:2005-02-05 Online:2006-12-11 Published:2013-12-09

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Abstract: Using the theoretical analysis results for the piles in soils undergoing lateral movement and the numerical simulation based on the finite element method, the sheltering effect of previously driven piles on the soil displacements in soft soils in pile driving engineering is discussed. The research shows that the sheltering effect of previously driven piles on the total lateral soil displacement is little. Different shear stiffness factors of the interface elements are used to analyze the influence of time interval between later and previously driven piles on the sheltering effect of previously driven piles. The sheltering effect of previously driven piles on ground heave is contributed mainly to the horizontal block to the soil movement and the restraining of soil heave by the large shaft friction for the short and long time interval, respectively.

Key words: pile driving engineering, soft soils, sheltering effects, ground heave, lateral soil displacement

CLC Number: 

  • TU 473.1
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