Abstract
The purpose of this work is to analyze the dynamic response of transversely isotropic saturated media under circular moving loads, in which the vertical and tangential loads can be simultaneously considered. Based on Biot's poroelastic theory and the Galilean transformation, the partial differential governing equations in a fixed Cartesian coordinate system are converted into those in a moving coordinate system. The ordinary differential equations are obtained in the transformed domain by using the Fourier transform. The extended precise integration method for layered media is adopted to solve the equations in the transformed domain by introducing the boundary conditions. The solutions in the physical domain are acquired by the Fourier transform inversion. After verifying the accuracy of the presented method, we perform several numerical examples to analyze the influences of the transverse isotropy and stratification of media, load shapes and the tangential moving load on the dynamic behaviors.
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