Abstract
ABSTRACT An elementary constitutive model to describe the behaviour of bonded soils or soft rocks subject to mechanical and/or chemical degradation is presented. To limit formalism as much as possible, the original Cam Clay model is taken as a starting point and axisymmetric conditions are considered. The effect of grain bonding is taken into account by one parameter that decreases with increasing strains and amount of chemical attack. Comparisons with experimental data in laboratory tests are shown together with two applications.
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