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Volume 34 Issue 11
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CAI Feng, HE Li-jun, ZHOU Xiao-peng, XU Mei-juan, MEI Guo-xiong. Finite element analysis of one-dimensional consolidation of undrained symmetry plane under continuous drainage boundary[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2141-2147.
Citation: CAI Feng, HE Li-jun, ZHOU Xiao-peng, XU Mei-juan, MEI Guo-xiong. Finite element analysis of one-dimensional consolidation of undrained symmetry plane under continuous drainage boundary[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 2141-2147.
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Finite element analysis of one-dimensional consolidation of undrained symmetry plane under continuous drainage boundary

  • 1. College of Transportation Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China

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  • Received Date: February 04, 2012
  • Published Date: December 19, 2012
    Graphical Abstract
    • Abstract
  • The continuous drainage boundary can correct the pervious and impervious boundaries which are extremely idealized. Based on the Terzaghi’s one-dimensional consolidation theory and the continuous drainage boundary; an analytical solution of one-dimensional consolidation of undrained symmetry plane under continuous drainage boundary is given. One-dimensional subroutine of continuous drainage boundary is written based on the finite element analysis of ABAQUS. The influence factors of undrained symmetry plane is studied; including boundary permeability; drainage time and permeability coefficient. The variation of the undrained symmetry plane is obtained. Finally; the location of setting sand layers at different depths in saturated soft clay is compared by the method of finite element analysis. The results show that the rate of consolidation is the fastest when the sand layer is set at the location of undrained symmetry plane. The continuous drainage boundary can help to determine the location of undrained symmetry plane. The results and the process of finite element analysis are of practical and important value and significance for the development of soil consolidation theory.
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    • References (13)
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