Review of fundamental principles in modelling unsaturated soil behaviour

D Sheng - Computers and Geotechnics, 2011 - Elsevier
An unsaturated soil is a state of the soil. All soils can be partially saturated with water.
Therefore, constitutive models for soils should ideally represent the soil behaviour over …

On constitutive modelling of unsaturated soils

A Gens, M Sánchez, D Sheng - Acta Geotechnica, 2006 - Springer
The paper presents a review of constitutive modelling of unsaturated soils. After a brief
historical perspective, a number of existing constitutive models are classified and discussed …

A microstructurally based effective stress for unsaturated soils

EE Alonso, JM Pereira, J Vaunat, S Olivella - Géotechnique, 2010 - icevirtuallibrary.com
Current alternative choices of stress state variables in unsaturated soils are described and
compared, with a special focus on the use of an effective stress. Experimental data on …

Soil–environment interactions in geotechnical engineering

A Gens - Géotechnique, 2010 - icevirtuallibrary.com
The range of problems that geotechnical engineers must face is increasing in complexity
and scope. Often, complexity arises from the interaction between the soil and the …

A new modelling approach for unsaturated soils using independent stress variables

D Sheng, DG Fredlund, A Gens - Canadian Geotechnical …, 2008 - cdnsciencepub.com
Although a number of constitutive models for unsaturated soils exist in the literature, some
fundamental questions have not been fully answered. There are questions related to (i) the …

Interpretation of unsaturated soil behaviour in the stress–saturation space, I: volume change and water retention behaviour

AN Zhou, D Sheng, SW Sloan, A Gens - Computers and Geotechnics, 2012 - Elsevier
Unsaturated soil behaviour, such as volume change, shear strength and yield stress, is
usually interpreted and modelled in terms of stress and suction. This approach is consistent …

Shear strength criteria for unsaturated soils

D Sheng, A Zhou, DG Fredlund - Geotechnical and Geological …, 2011 - Springer
Shear strength is one of the fundamental properties of unsaturated soils. It has been found to
change with matric suction. Various shear strength equations have been proposed for …

Numerical modeling of multiphase fluid flow in deforming porous media: A comparison between two-and three-phase models for seismic analysis of earth and rockfill …

AR Khoei, T Mohammadnejad - Computers and Geotechnics, 2011 - Elsevier
In this paper, a fully coupled numerical model is presented for the finite element analysis of
the deforming porous medium interacting with the flow of two immiscible compressible …

An advanced hydro-mechanical constitutive model for unsaturated soils with different initial densities

A Zhou, D Sheng - Computers and Geotechnics, 2015 - Elsevier
This paper presents an advanced constitutive model for unsaturated soils, using Bishop's
effective stress (σ′) and the effective degree of saturation (S e) as two fundamental …

A computationally efficient SPH framework for unsaturated soils and its application to predicting the entire rainfall-induced slope failure process

Y Lian, HH Bui, GD Nguyen, S Zhao, A Haque - Géotechnique, 2022 - icevirtuallibrary.com
The first and fully validated smoothed particle hydrodynamics (SPH) model is presented to
tackle coupled flow–deformation problems in unsaturated porous media that undergo large …