Modelling the Behaviour of Compacted Soils

Predictions based on a recently developed model for unsaturated soil behaviour have been compared with some results of two experimental programs on compacted soils recently published in the literature. In both programs compacted specimens were subjected to loading and wetting sequences. It is shown that experimental observations are consistently reproduced by the model. This success has led to a simplified frame-work for compacted soil behaviour in which model parameters represent soil type and compaction method whereas the as compacted dry density and moulding water content are conveniently described by initial preconsolidation stress and water suction.