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Instability of loose sand under drained conditions / J. Chu in Journal of geotechnical and geoenvironmental engineering, Vol. 138 N° 2 (Fevrier 2012) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 207-216 Titre : Instability of loose sand under drained conditions Type de document : texte imprimé Auteurs : J. Chu, Auteur ; W. K. Leong, Auteur ; W. L. Loke, Auteur Année de publication : 2012 Article en page(s) : pp. 207-216 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Constitutive  relations  Failures  Laboratory  tests  Sand  Shear  strength Résumé : A type of prefailure instability which occurs under fully drained conditions is studied in this paper. It is observed experimentally that when a specimen is sheared along a drained stress path involving a decrease in effective mean stress, it becomes unstable after the stress path crosses an instability line. The instability occurring under drained conditions is different from the type observed under undrained conditions. The differences and similarities between the two types of instability are elaborated. The practical implication of the study in analyzing the failure mechanisms of granular soil slope is also discussed. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v138/i2/p207_s1?isAuthorized=no [article] Instability of loose sand under drained conditions [texte imprimé] / J. Chu, Auteur ; W. K. Leong, Auteur ; W. L. Loke, Auteur . - 2012 . - pp. 207-216. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 138 N° 2 (Fevrier 2012) . - pp. 207-216 Mots-clés : Constitutive  relations  Failures  Laboratory  tests  Sand  Shear  strength Résumé : A type of prefailure instability which occurs under fully drained conditions is studied in this paper. It is observed experimentally that when a specimen is sheared along a drained stress path involving a decrease in effective mean stress, it becomes unstable after the stress path crosses an instability line. The instability occurring under drained conditions is different from the type observed under undrained conditions. The differences and similarities between the two types of instability are elaborated. The practical implication of the study in analyzing the failure mechanisms of granular soil slope is also discussed. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v138/i2/p207_s1?isAuthorized=no