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Volume 35 Issue zk1
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SHENG Zhi-qiang, SHI Yu-cheng, SUN Jun-jie, QIU Ren-dong, LU Yu-xia, LIU Kun, WAN Xiu-hong. Three-dimensional FEM analysis of settlement and deformation of pile-soil system under vertical load using ABAQUS[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 366-371.
Citation: SHENG Zhi-qiang, SHI Yu-cheng, SUN Jun-jie, QIU Ren-dong, LU Yu-xia, LIU Kun, WAN Xiu-hong. Three-dimensional FEM analysis of settlement and deformation of pile-soil system under vertical load using ABAQUS[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk1): 366-371.
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Three-dimensional FEM analysis of settlement and deformation of pile-soil system under vertical load using ABAQUS

  • 1. Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China; 2. Open Laboratory of Loess Earthquake Engineering, CEA, Lanzhou, 730000, China; 3. Geotechnical Disaster Prevention Engineering Technology Research Center of Gansu Province, Lanzhou 730000, China; 4. Institute of Foundation Engineering, China Academy of Building Research, Beijing 100013, China

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  • Received Date: February 28, 2013
  • Published Date: July 18, 2013
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    • Abstract
  • By means of the finite element software named ABAQUS, the settlement and deformation of the pile-soil system under vertical load are analyzed. The foundations with pile groups can be divided into three categories: different pile spacings, different pile lengths, and different pile numbers. For numberical analysis, the Mohr-Coulomb criterion is adopted. Based on some large scale mode tests on pile groups, it is found that the results of 3D FEM analysis using ABAQUS software are convincing. The results show that the settlement of pile group foundation decreases if the pile spacing or length increases. Compared with the settlement and deformation of pile group foundation with different pile numbers, the settlement increases with the number of piles, nevertheless, the settlement value is stable when piles are larger than number 25×25. In other words, the change of the settlement of the pile foundation is not obvious with the increase of the pile number if it exceeds a certain level. Many researches should be done to show whether or not the foundation settlement of smaller number (25×25) of piles can be calculated, and the settlement of the foundation with larger number of piles meets the need of engineering design.
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