Bridging Effective Stress and Soil Water Retention Equations in Deforming Unsaturated Porous Media: A Thermodynamic Approach

• Published in: Transport in porous media Vol. 117; no. 3; pp. 349 - 365
• Main Authors: Huyghe, J. M., Nikooee, E., Hassanizadeh, S. M.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.04.2017; Springer Nature B.V
• Subjects: Civil Engineering; Classical and Continuum Physics; Constitutive relationships; Deformation effects; Earth and Environmental Science; Earth Sciences; First principles; Geotechnical Engineering & Applied Earth Sciences; Hydrogeology; Hydrology/Water Resources; Industrial Chemistry/Chemical Engineering; Porous media; Retention; Soil stresses; Soil water; Wetting fluid; Non-wetting fluid; Saturation; Porous medium

The finite deformation of an unsaturated porous medium is analysed from first principles of mixture theory. An expression for Bishop’s effective stress is derived from (1) the deformation-dependent Brooks and Corey’s water retention curve and (2) the restrictions on the constitutive relationships of...