Soils at the ground surface experience multiple cycles of drying and wetting. On drying, soils shrinkage cracks may appear. The development depends on tensile strength soil. Such increase permeability soil can cause slopes earth structures to fail due rainfall. Several models have been proposed for unsaturated considering effect matric suction. However, are either cohesionless (coarse-grained) ...

Numerical simulation of flow through multidimensional heterogeneous soils under unsaturated conditions is a computationally intensive task. The governing unsaturated flow equation is nonlinear. The degree of nonlinearity depends on the unsaturated hydraulic properties of the soil and the degree of heterogeneity. In this paper, we present a highly efficient method to simulate unsaturated steady ...

Unsaturated soils in engineered geostructures like embankments or retaining walls may experience seismic compression during earthquakes due to particle rearrangement associated with large-strain cyclic shearing. Although previous studies have investigated volume changes drained shearing of unsaturated soils, undrained presents a more complex situation. During shearing, total volume, matric suct...

“Multi-scale, multi-components, multi-phases” are the key words that characterize the double porosity media, like fissured rocks, aggregated soils or composite geomaterials, subject to environmental conditions. In relation to this context an integrated upscaling approach to the modelling of water flow and solute transport under unsaturated conditions in double porosity media, is presented. The ...