The damping of saturated poroelastic soils during steady-state vibrations (Q1805247)

We analyze the damping that arises from the soil-water interaction within nearly-saturated soils during steady-state vibrations. Based on the two- phase theory of Biot, we analytically derive the spectral response of a column made of nearly saturated poroelastic soils as a function of soil stiffness, degree of saturation, porosity, specific gravity, and permeability. A parametric study determines the influence of these parameters on the fundamental period, maximum amplitude, energy dissipation, damping factor, and maximum pore pressure.