Stress — Strain Laws and Parameter Values

Abstract

Stress-strain laws for soil appear to have been developed with restrictions on their applicability, if any, relating to whether the soil is cohesive or non-cohesive rather than whether it is insitu or a fill. The same models have been used for both, only the parameters are different. This is not completely true. For example, a dedicated model is used for insitu London clay, and later in this chapter it will be noted that a difficulty in applying the critical state model to fills is that it was originally developed for laboratory re-constituted clays (i.e. depositied in water). Nonetheless, the formulation of the basic models is not affected by this distinction. Consequently much of the content of this chapter applies to insitu soils as well as to fills.