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Validation of centrifuge model scaling for soil systems via trapdoor tests / Geraldo R. Iglesia in Journal of geotechnical and geoenvironmental engineering, Vol. 137 N° 11 (Novembre 2011) 

Public ISBD [article]  in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 11 (Novembre 2011) . - pp. 1075-1089 Titre : Validation of centrifuge model scaling for soil systems via trapdoor tests Type de document : texte imprimé Auteurs : Geraldo R. Iglesia, Auteur ; Herbert H. Einstein, Auteur ; Robert V. Whitman, Auteur Année de publication : 2012 Article en page(s) : pp. 1075-1089 Note générale : Géotechnique Langues : Anglais (eng) Mots-clés : Centrifuge  modeling  Trapdoor  tests  Physical  modeling  Scaling  laws  Granular  media Résumé : The validity of centrifuge modeling of soil systems is investigated by means of a “yielding trapdoor” setup similar to the one used by previous researchers for examining soil arching. A modeling-of-models exercise is thus carried out in accordance with centrifuge scaling requirements. This parametric study also includes the effects of g-level, grain-size, trapdoor width, and overburden depth. Particle-size scaling may be necessary to achieve full model-prototype similitude, depending on the structure-to-grain-size ratio. However, it appears that reasonable results can be achieved with centrifuge models, using the same soil as the prototype, where the structural dimensions are at least 20 times the grain size. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i11/p1075_s1?isAuthorized=no [article] Validation of centrifuge model scaling for soil systems via trapdoor tests [texte imprimé] / Geraldo R. Iglesia, Auteur ; Herbert H. Einstein, Auteur ; Robert V. Whitman, Auteur . - 2012 . - pp. 1075-1089. Géotechnique Langues : Anglais (eng) in Journal of geotechnical and geoenvironmental engineering > Vol. 137 N° 11 (Novembre 2011) . - pp. 1075-1089 Mots-clés : Centrifuge  modeling  Trapdoor  tests  Physical  modeling  Scaling  laws  Granular  media Résumé : The validity of centrifuge modeling of soil systems is investigated by means of a “yielding trapdoor” setup similar to the one used by previous researchers for examining soil arching. A modeling-of-models exercise is thus carried out in accordance with centrifuge scaling requirements. This parametric study also includes the effects of g-level, grain-size, trapdoor width, and overburden depth. Particle-size scaling may be necessary to achieve full model-prototype similitude, depending on the structure-to-grain-size ratio. However, it appears that reasonable results can be achieved with centrifuge models, using the same soil as the prototype, where the structural dimensions are at least 20 times the grain size. DEWEY : 624.1 ISSN : 1090-0241 En ligne : http://ascelibrary.org/gto/resource/1/jggefk/v137/i11/p1075_s1?isAuthorized=no