From Solids to Fluidized Soils: Applications to Fast Catastrophic Landslides

M. PASTOR; D. MANZANAL; J.A. FERNANDEZ MERODO; P. MIRA; T. BLANC; M.J. PASTOR ELIZALDE; B. HADDAD; M. SÁNCHEZ; I. HERREROS; V. DREMPETIC; C. ALVAREZ-CEDRÓN

Monte Veritá

Conferencia; Conferencia Invitada: From shear bands to rapid flow; 2009

Institute for building materials -computational physic for engineering materials

Geomaterials are mixtures of solids with voids which are filled by fluids such as air and water. Due to the strong coupling between phases, pore pressures can be generated if loading is applied fast enough. In the case of loose metastable materials, unstable behavior and catastrophic failure can happen. An important case is that of fast catastrophic landslides with large velocities caused by high pore pressures in their lower part. The purpose of this paper is to present mathematical, constitutive and rheological models which describe the most relevant phenomena, together with discretization techniques.