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Nonlinear mechanical and poromechanical analyses : comparison with analytical solutions

Abstract

International audienceThe validation of computational schemes for modelling multiphysic phenomena in porous geomaterials is a key importance in geoenvironmental applications. This paper focuses on the vadiation of nonlinear and coupled hydromechanical schemes by comparing the results of numerical predictions performed with COMSOL and the mathematical solutions. Firstly, we simulate the nonlinear mechanical behaviour of rock mass around a deep cylindrical hole. The second example treats on the simulation of the well-known one-dimensional consolidation of a column of saturated porous rock. Finally a validation of poroelastic calculations based on the drainage of a cylindrical hole in porous media is achieved by comparison to an existing analytical solution

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