Finite Element Method for Soil Deformations

Abstract

<p> A finite element method, incorporating the Hellinger-Reissner variational principle, has been developed for calculations of stress-strain and pore pressure for undrained and drained soil deformations. The soil is considered as cross-isotropically elastic material to account for the anisotropy of soil behaviour resulting from geological formations. A general expression for pore pressure parameters, taking into account the consolidation condition, has been hypothesized. Experimental investigations of consolidated undrained triaxial tests have been performed to study the validity of this expression.</p>