ABSTRACT
Various possible mechanisms are analyzed using assumed stress deformation behaviour for the ground. The extent of calculation and the choice of the stress deformation model largely depend on the type and importance of the information required. In saturated soil, the forces are transferred by stresses in the solid particles and pressure in the pore water. The stress deformation behaviour of soil is responsible for the elastic and plastic deformations of soil when acted upon by external loads. Soil deformations are determined by the effective stresses which are a measure of the forces applying at intergranular contact points. Deformations are limited provided that the shear stress on a specific plane is less than the critical value. The empirical method is based on hypotheses developed and verified over the years in relation to the compression and failure of large soil masses. In the stress deformation behaviour of highly compressible soil, various phenomena and/or mechanisms separately play an important part.
