ABSTRACT
The consolidation and shearing parameters of soil largely depend on their constitutive models. The widely accepted v-ln(p) model of soil consolidation is unable to describe the specific volume v at the mean normal stress p = 0 and its linear parameters vary with the soil water content w and stress p. The normalized ln(v)-p/p n model successfully describes v at any p as a function of w. In fact, the parameters of dry soil at p = 0 would be the basic characteristics for the basis on soil fabrics. The soil states are precisely described by the p,v,S r instead of p,v,w for continuous changes of soil saturation Sr with consolidation pressure. For the soil states p, v, S r, the normalized model extends to the ln(v)-p/p n-S r form that rolls on a surface generated in its self-contained orthogonal axes. Accordingly, for the soil states p, v, S r, the model of shearing stresses takes on the M-p/p n-S r form. The linear parameters of the extended models of consolidation and triaxial shearing being independence of the stress and moisture status are the basic characteristics of soil fabrics.
