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This paper presents an elastoplastic constitutive model for the coupling of hydraulic and stress–strain behavior of unsaturated soils under isotropic loading conditions. The proposed model is capable of considering the influence of irrecoverable changes in water volume fraction on stress–strain behavior and plastic strain on hydraulic behavior. Bounding surface and subloading surface plasticity frameworks...
The values of soil structural pressures may serve as identifiers of boundaries of deformation zones below foundations. Under soil structural pressure, σ sz , we will understand the maximum stress value for which only recoverable deformations may be observed. The paper presents a method for determination of structural pressures using oedometer test results. Experimental data published in literature...
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