Article

Science in China Series G: Physics, Mechanics and Astronomy

, Volume 51, Issue 7, pp 883-893

Dynamic response of a poroelastic stratum to moving oscillating load

  • YuanGuo ChenAffiliated withSchool of Aerospace Engineering and Applied Mechanics, Tongji University
  • , Bo JinAffiliated withSchool of Aerospace Engineering and Applied Mechanics, Tongji University Email author 

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Abstract

The dynamic response of a poroelastic stratum subjected to moving load is studied. The governing dynamic equations for poroelastic medium are solved by using Fourier transform. The general solutions for the stresses and displacements in the transformed domain are established. Based on the general solutions, with the consideration of boundary conditions, the final expressions of stresses and displacements in physical domain are put forward for the three-dimensional single-layer medium. Some numerical solutions for the stresses, displacements and pore fluid pressure are presented and reveal that the response of a poroelastic stratum varies obviously with the moving velocity.

Keywords

poroelastic stratum Biot’s dynamic equation Fourier transform moving oscillating load