Sedimentation-consolidation of a double porosity material

Henry Wong (1) , Chin J. Leo (2) , Jean-Michel Pereira (3) , Philippe Dubujet (4)

1 DGCB-LGM - Laboratoire Géomatériaux
2 School of Engineering
3 cermes - Géotechnique
4 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

This paper studies the sedimentation-consolidation of a double porosity material, such as lumpy clay. Large displacements and finite strains are accounted for in a multidimensional setting. Fundamental equations are derived using a phenomenological approach and non-equilibrium thermodynamics, as set out by Coussy [Coussy, Poromechanics, Wiley, Chichester, 2004]. These equations particularise to three non-linear partial differential equations in one dimensional context. Numerical implementation in a finite element code is currently being undertaken.

Mots clés: Sedimentation; Consolidation; Double porosity; Porous media

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Henry Wong, Chin J. Leo, Jean-Michel Pereira, Philippe Dubujet. Sedimentation-consolidation of a double porosity material. Computers and Geotechnics, 2007, 34 (6), pp.532-538. ⟨10.1016/j.compgeo.2006.12.001⟩. ⟨hal-00324516⟩