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Volume 35 Issue zk1
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LIU Yi-lin, NING Zhao-ke, JIANG Rui-qing, HUANG Mao-song. 3D elastoplastic stability analysis of slopes with weak interlayers reinforced by piles based on FEM[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 216-221.
Citation: LIU Yi-lin, NING Zhao-ke, JIANG Rui-qing, HUANG Mao-song. 3D elastoplastic stability analysis of slopes with weak interlayers reinforced by piles based on FEM[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 216-221.
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3D elastoplastic stability analysis of slopes with weak interlayers reinforced by piles based on FEM

  • 1. Research Institute of Highway Ministry of Transport, Beijing 100088, China; 2. Key Laboratory of Road Construction & Material of Ministry of Transport, Beijing 100088, China; 3.Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 4. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

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  • Received Date: March 03, 2013
  • Published Date: July 18, 2013
    Graphical Abstract
    • Abstract
  • In view of the strength reduction method used for slope stability analysis frequently, the stability of the homogeneous slope and the slope with weak interlayer, which are reinforced by piles, is analyzed by means of the commercially available finite element analysis software. It shows that for the homogeneous slope, when the diameter of pile is regular, the safety of factor decreases while the pile spacing increases and the pile stiffness decreases. The soil pressure increases along the depth of the pile. In the same situation, the factor of safety obtained by the strength reduction method is larger than that obtained by the limit analysis. For the slope with weak interlayer, the sliding surface develops from the foot of the slope to the top while the pile spacing is small. However, the sliding surface develops along the weak interlayer basically while pile spacing is large.
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    • References (1)
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