Chinese Journal of Theoretical and Applied Mechani ›› 2012, Vol. 44 ›› Issue (5): 943-947.DOI: 10.6052/0459-1879-12-003

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TRANSIENT DYNAMIC ANALYSIS OF GRADIENT FLUID-SATURATED SOIL

Zhou Fengxi1,2, Lai Yuanming2   

  1. 1. School of Civil Engineering, Lanzhou University of Technology, Lanzhou 730050, China;
    2. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2012-01-04 Revised:2012-04-16 Online:2012-09-23 Published:2012-09-30
  • Supported by:

    The project was supported by the the National Natural Science Foundation of China (11162008),the Fundamental Research Funds for the Gansu Universities(1104ZTC140) and the Fund of Department of Education of China for Master's Tutor(1103-07).

Abstract:

Based on the Biot's theory of porous media,the calculation formula of reverberation ray matrix method is established for one-dimensional transient response of fluid-saturated soil,where the non-homogeneous,inertial,viscous and the compressible of solid particles and fluid are taken into account.The present methodology is validated by comparing solutions with some known result.As numerical examples,assuming that the material properties of the saturated soil have an exponential law distribution along the thickness-coordinate,the transient response,in terms of displacement,stress and pore press,are examined using numerical inverse Laplace transform.The effect of non-homogeneous on transient responses of gradient saturated soil is demonstrated and discussed.

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Key words:

saturated porous media|non-homogeneous|reverberation ray matrix method|transient response

CLC Number: