Collapse Upon Wetting
Pp. 123-141 (19)
This chapter presents the modeling of the phenomenon of collapse upon
wetting using the effective stress equation established in Chapter 2 and the elastoplastic
framework proposed in the previous chapter. Using the probabilistic porous-solid
model, Bishop’s parameter χ can be obtained to determine the current effective stress.
The proposed framework includes the hysteresis of the SWRC and to some extent the
hydro-mechanical coupling of unsaturated soils. This model is able to reproduce some
particularities of the phenomenon of collapse upon wetting that other models cannot
Bishop’s effective stress equation, Collapse upon wetting, Compacted
soils, Effective stress, Elastoplastic framework, Hydro-mechanical coupling,
Hysteresis, Neutral loading, Porous-solid model, Preconsolidation stress, Soilwater
retention curve, Suction controlled tests, Suction hardening, Unsaturated
soils, Yield surface.
Universidad Autonoma de Queretaro Mexico.