Abstract
Non-linear consolidation analysis using a finite element formulation based on Biot's consolidation theory has been used to study the behaviour of strip and circular footings resting on an elastic-perfectly plastic soil satisfying the Mohr-Coulomb yield criterion. The initial stress method with a modified Newton-Raphson iterative scheme has been used for this study. Displacement of the footing and pore pressure dissipation in the soil are compared with those of linear analysis. Incorporation of the plastic behaviour of soil increases the consolidation rate and settlement. Effects of flow rule and p 0 c ratio on consolidation behaviour have also been reported.
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