Axisymmetric consolidation of multi-layered foundation with anisotropic permeability and compressible fluid due to well point sink
AI Zhi-yong1, 2, HU Ya-dong1, 2, ZENG Wen-ze1, 2
1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China
Abstract：Starting from the governing equations for axisymmetric consolidation of poroelastic materials with anisotropic permeability and compressible fluid, and using the technique of Laplace-Hankel transform, the generalized expressions for the displacements and stresses of materials in transformed domain are derived. Based on the theory of the analytical layer-element method, the global stiffness is assembled by imposing the boundary conditions and continuity between layers on the problem. Applying the inversion of the Laplace-Hankel transform, the solution to the consolidation problem of multi-layered foundation due to well point sink is obtained. In order to verify the proposed theory, numerical results are carried out by means of the compiled procedure and compared with the existing references. The numerical results demonstrate that the bigger the velocity of well point sink, the more quickly the surface displacement, and the feature of compressible fluid can decease the development of surface displacement under the same time factor.
艾智勇, 胡亚东, 曾文泽. 井点降水时可压缩渗透各向异性地基固结分析[J]. 岩土工程学报, 2013, 35(zk2): 501-505.
AI Zhi-yong, HU Ya-dong, ZENG Wen-ze. Axisymmetric consolidation of multi-layered foundation with anisotropic permeability and compressible fluid due to well point sink. Chinese J. Geot. Eng., 2013, 35(zk2): 501-505.
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