Sedimentation-consolidation of a double porosity material
  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. 
Henry Wong (DGCB-LGM), Chin J. Leo, Jean-Michel Pereira (UR Navier),   Philippe Dubujet (LTDS)