Shear strength and shear-induced volume change behavior of unsaturated soils from a triaxial test program / Sandra L. Houston in Journal of geotechnical and geoenvironmental engineering, Vol. 134 n°11 (Novembre 2008)  

Public ISBD [article]  inJournal of geotechnical and geoenvironmental engineering > Vol. 134 n°11 (Novembre 2008) . - pp. 1619–1632 Titre : Shear strength and shear-induced volume change behavior of unsaturated soils from a triaxial test program Type de document : texte imprimé Auteurs : Sandra L. Houston, Auteur ; Natalia Perez-Garcia, Auteur ; William N. Houston, Auteur Année de publication : 2009 Article en page(s) : pp. 1619–1632 Note générale : Geotechnical and geoenvironmental engineering Langues : Anglais (eng) Mots-clés : Shear strength Suction Volume change Unsaturated soils Triaxial tests Soil properties Résumé : A series of unsaturated soil triaxial tests were performed on four soils including sand, silt, and a low plasticity clay. Attempts were made to correlate unsaturated soil properties from these tests and data from the literature with soil-water characteristics curve (SWCC), soil gradation, and saturated soil properties. The feasibility of estimating unsaturated soil property functions from saturated soil properties, SWCCs and gradation data, is demonstrated. A hyperbolic model for estimation of the unsaturated soil parameter, ϕb , versus matric suction is presented. Shear induced volume change behavior was also studied, and results are included in this paper. Although not correlated with soil index properties, these shear-induced volume change data are important to complete stress-deformation analyses, and represent a significant addition to the existing data base of unsaturated soil properties. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A11%281 [...] [article] Shear strength and shear-induced volume change behavior of unsaturated soils from a triaxial test program [texte imprimé] / Sandra L. Houston, Auteur ; Natalia Perez-Garcia, Auteur ; William N. Houston, Auteur . - 2009 . - pp. 1619–1632. Geotechnical and geoenvironmental engineering Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 134 n°11 (Novembre 2008) . - pp. 1619–1632 Mots-clés : Shear strength Suction Volume change Unsaturated soils Triaxial tests Soil properties Résumé : A series of unsaturated soil triaxial tests were performed on four soils including sand, silt, and a low plasticity clay. Attempts were made to correlate unsaturated soil properties from these tests and data from the literature with soil-water characteristics curve (SWCC), soil gradation, and saturated soil properties. The feasibility of estimating unsaturated soil property functions from saturated soil properties, SWCCs and gradation data, is demonstrated. A hyperbolic model for estimation of the unsaturated soil parameter, ϕb , versus matric suction is presented. Shear induced volume change behavior was also studied, and results are included in this paper. Although not correlated with soil index properties, these shear-induced volume change data are important to complete stress-deformation analyses, and represent a significant addition to the existing data base of unsaturated soil properties. En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%291090-0241%282008%29134%3A11%281 [...]

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