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Tong Li-yuan, Wang Bin, Liu Yi-huai. 3-D numerical analysis of large subsoil liquefaction distortion influence resulted from earthquake on bridge pile foundation[J]. Journal of Traffic and Transportation Engineering, 2007, 7(3): 91-94.
Citation: Tong Li-yuan, Wang Bin, Liu Yi-huai. 3-D numerical analysis of large subsoil liquefaction distortion influence resulted from earthquake on bridge pile foundation[J]. Journal of Traffic and Transportation Engineering, 2007, 7(3): 91-94.
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3-D numerical analysis of large subsoil liquefaction distortion influence resulted from earthquake on bridge pile foundation

  • 1.

    School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China

  • 2.

    Expressway Construction Headquarters of Jiangsu Province, Nanjing 210004, Jiangsu, China

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  • Author Bio:

    Tong Li—yuan(1975-), male, lecturer, +86-25-83795005, atmu@seu.edu.cn

  • Received Date: 2006-12-12
  • Publish Date: 2007-06-25
    Abstract
  • In order to study large subsoil liquefaction distortion influence resulted from earthquake on bridge pile foundation, typical computation models in two and three soil layers were set up, the interaction nonlinearity relation between pile and soil was analyzed, the dynamic finite difference analysis of single pile and group piles was carried out by using FLAC-3D, and the characteristics of displacement and inner force of pile foundation were studied in detail. Analysis result shows that the bending moment extremum at the interface between liquefaction layer and non-liquefaction layer controls the failure of pile in the two and three soil layers, liquefaction layer has little effect on the bending moment of pile; the pile cap limits pile lateral displacement to a certain extent, and has little effect on its bending moment extremum; according to group piles, the lateral displacement and the bending moment distribution of upgrade pile are similar to that of downgrade pile, but the values of upgrade pile are larger.

     

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