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

Autor: Yichong Cheng, Chao Wu, Zhi Yong Ai, Wenze Zeng
Rok vydání: 2011
Předmět:
Zdroj: Frontiers of Architecture and Civil Engineering in China. 5:171-179
ISSN: 1673-7512
1673-7407
DOI: 10.1007/s11709-011-0103-0
Popis: 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 Laplace-Fourier 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.
Databáze: OpenAIRE