Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible pore fluid

Abstract

This paper presents an uncoupled state space solution to three-dimensional consolidation of layered poroelastic medium with anisotropic permeability and compressible pore fluid. Starting from the basic equations of poroelastic medium, and introducing intermediate variables, the state space equation usually comprising eight coupled state vectors is uncoupled into two sets of equations of six and two state vectors in the LaplaceFourier transform domain. Combined with the continuity conditions between adjacent layers and boundary conditions, the uncoupled state space solution of a layered poroelastic medium is obtained by using the transfer matrix method. Numerical results show that the anisotropy of permeability and the compressibility of pore fluid have remarkable influence on the consolidation behavior of poroelastic medium.

Dynamic response of road pavement resting on a layered poroelastic half‐space to a moving traffic load

“…In the past years, the interaction of a loaded plate with a saturated and layered saturated poroelastic half‐space was studied . Recently, Ai et al have presented an uncoupled state space solution to three‐dimensional consolidation of layered poroelastic medium with anisotropic permeability and compressible pore fluid . A half‐space finite element and a consistent transmitting boundary in a cylindrical coordinate system were developed for analyzing the rigid circular foundations in a water‐saturated porous layered half‐space .…”