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3-D CONSOLIDATION ANALYSIS OF LAYERED SOIL WITH ANISOTROPIC PERMEABILITY USING ANALYTICAL LAYER-ELEMENT METHOD

Zhiyong Ai 1 Yichong Cheng(Department of Geotechnical Engineering,Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,China)  
Starting with governing equations of a saturated soil with anisotropic permeability and based on multiple integral transforms,an analytical layer-element equation is established explicitly in the Laplace-Fourier transformed domain.A global matrix of layered soil can be obtained by assembling a set of analytical layer-elements,which is further solved in the transformed domain by considering boundary conditions.The numerical inversion of Laplace-Fourier transform is employed to acquire the actual solution.Numerical analysis for 3-D consolidation with anisotropic permeability of a layered soil system is presented,and the influence of anisotropy of permeability on the consolidation behavior is discussed.
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