Transport in Porous Media

, Volume 122, Issue 3, pp 515–519 | Cite as

Comment on “Bridging Effective Stress and Soil Water Retention Equations in Deforming Unsaturated Porous Media: A Thermodynamic Approach”—J. M. Huyghe, E. Nikooee, S. M. Hassanizadeh; Published online: 4 March 2017—DOI 10.1007/s11242-017-0837-9

  • Nasser Khalili
  • Arman Khoshghalb

The authors present a semi-empirical relationship for the determination of the effective stress parameter for unsaturated soils based on thermodynamics considerations. The model proposed requires as input: suction value of interest, air entry value (AEV) of the soil, slope of the soil water retention curve (SWRC) in the log–log plane and a fitting parameter, \(\xi \)


  1. Bishop, A., Blight, G.: Some aspects of effective stress in saturated and partly saturated soils. Geotechnique 13, 177–197 (1963)CrossRefGoogle Scholar
  2. Khalili, N., Khabbaz, M.H.: Unique relationship for \(\chi \); for the determination of the shear strength of unsaturated soils. Geotechnique 48(5), 681–687 (1998)CrossRefGoogle Scholar
  3. Khalili, N., Habte, M.A., Zargarbashi, S.: A fully coupled flow deformation model for cyclic analysis of unsaturated soils including hydraulic and mechanical hystereses. Comput. Geotech. 35(6), 872–889 (2008)CrossRefGoogle Scholar
  4. Khoshghalb, A., Pasha, A.Y., Khalili, N.: A fractal model for volume change dependency of the water retention curve. Geotechnique 65(2), 141–146 (2015)CrossRefGoogle Scholar
  5. Lee, I.M., Sung, S.G., Cho, G.C.: Effect of stress state on the unsaturated shear strength of a weathered granite. Can. Geotech. J. 42(2), 624–631 (2005)CrossRefGoogle Scholar
  6. Mašín, D.: Predicting the dependency of a degree of saturation on void ratio and suction using effective stress principle for unsaturated soils. Int. J. Numer. Anal. Methods Geomech. 34(1), 73–90 (2010)Google Scholar
  7. Pasha, A.Y., Khoshghalb, A., Khalili, N.: Pitfalls in interpretation of water content based soil water characteristic curve of a deformable porous medium. Int. J. Geomech. 16(6), D4015004 (2016)CrossRefGoogle Scholar
  8. Pasha, A.Y., Khoshghalb, A., Khalili, N.: A hysteretic model for the evolution of water retention curve with void ratio. J. Eng. Mech. ASCE 143(7), 04017030 (2017)CrossRefGoogle Scholar
  9. Rassam, D., Williams, D.: A relationship describing the shear strength of unsaturated soils. Can. Geotech. J. 36, 363–368 (1999)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2017

Authors and Affiliations

  1. 1.School of Civil and Environmental EngineeringUNSW SydneySydneyAustralia

Personalised recommendations