Static liquefaction of a saturated loose sand stratum

The ideal case of an infinite horizontal, homogeneous oedometrically consolidated saturated loose sand stratum, sheared in displacement controlled conditions is numerically analysed. The phenomenon of the stratum liquefaction, which is due to both the material mechanical instability and the water presence within pores, is discussed. The numerical results have been obtained by means of a spatial one dimension finite difference numerical code within which both the local and the non-local versions of the same elasto-viscoplastic constitutive model are implemented. Both pore water and shear strain wave propagation within the soil layer is described