… soil behaviour, which is built in the space of stress versus degree of saturation. In Part I, a
new volume change equation is proposed in terms of stress and degree of saturation, to give a …

… stress–strain behaviour of real soils (such as softening behaviour, peak strength, shear-…
can be replaced by a number of advanced saturated models, such as a bounding surface model, …

… normal compression line (NCL) plots as a planar surface in both v:ln p * :ln s * and S r :ln
p * :ln s * spaces, and when transitions from unsaturated to saturated conditions occur under …

… soil behaviour. In this approach, all constitutive laws are built in the space of stress versus
degree of saturation. A … of saturation, to give a better explanation to the non-linear change of …

… saturated soil models. Such models, however, cannot successfully reproduce partially saturated
soil behaviour. … in p − s eq stress space (p o = p* o ) and k = 0, the partially saturated and …

… soils can be partially saturated with water. Therefore, constitutive models for soils should
ideally represent the soil behaviour … as an independent axis in the stress space in this paper. In …

… saturated state all the void spaces between the particles are filled with water, but in the
unsaturated state a proportion of the void spaces … saturated, fine-grained soils and the behaviour …

… new volume change equation in the space of stress and saturation is proposed in this paper.
… of saturation. Compression under constant suction will raise the degree of saturation which, …

… soil behaviour. However this approach cannot take into account the effect of degree of
saturation or water contents on the stress–strain behaviour and strength of unsaturated soils. The …

… initially compacted dry soil, it is expected that the microstructure will saturate first, because
… as the intra-aggregate space) is consistent with the behaviour of interacting clay platelets. …