Abstract
The paper presents a water retention model for compacted clayey soils. The model is based on a description of the aggregated structure of the material and its evolution along generalized hydraulic and mechanical stress paths. The water retention properties of each structural level are distinguished and described separately using an expression of the type proposed by van Genuchten (1980). The water retention model is validated against experimental data on Boom Clay compacted at different dry densities. Its qualitative performance are highlighted along a complex hydromechanical path. The proposed formulation succeeds in tracking simultaneously the evolution of the fabric pattern and of the hydraulic state of compacted clays along generalized stress paths.
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