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Volume 35 Issue zk2
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MA Xiao, QIAN Jian-gu, HAN Li-ming, CAO Jie, HUANG Mao-song. Equivalent finite element method for long-term settlement of subgrade induced by traffic load[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 910-913.
Citation: MA Xiao, QIAN Jian-gu, HAN Li-ming, CAO Jie, HUANG Mao-song. Equivalent finite element method for long-term settlement of subgrade induced by traffic load[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 910-913.
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Equivalent finite element method for long-term settlement of subgrade induced by traffic load

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 3. The Engineering Research Base of China Airport Construction Corporation of CAAC, Beijing 100101, China

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  • Received Date: July 18, 2013
  • Published Date: November 24, 2013
    Graphical Abstract
    • Abstract
  • Traffic load may produce a significant settlement of subgrade on saturated soft soils. This work aims to develop an equivalent finite element method to calculate the long-term settlement of subgrade. The pseudo-static method is used to calculate the dynamic stress ratio. An explicit stress-strain model is developed from the experimental data of axial plastic strain and accumulated pore pressure and then integrated into the initial-strain-based equivalent FEM. The equivalent FEM is established using the user-defined subroutine offered by the commercial FEM software. As an illustration, the equivalent FEM is used to compute the settlement of a typical cross-section of a road. It is found that the maximum strains are distributed near the side of road surface, and the maximum settlement is located in the central area of road surface.
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    • References (8)
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