A Two Dimensional Finite Element Consolidation Model for Unsaturated Soil
A fully coupled model involving the transient flow of air and water in a deformable unsaturated soil has been developed and implemented in a finite element program. The elastoplastic constitutive model representing the behaviour of the unsaturated soil uses net stress and suction as stress parameters enabling wetting induced swell and collapse to be modelled. In this paper the numerical model is used to study the collapse and swell mechanisms occurring in a column of soil subjected to infiltration.
KeywordsWater Pressure Soil Column Unsaturated Soil Finite Element Program Vertical Strain
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