Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift / H. E. Acosta-Martinez in Géotechnique, Vol. 62 N° 4 (Avril 2012)  

Public ISBD [article]  inGéotechnique > Vol. 62 N° 4 (Avril 2012) . - pp. 317–328 Titre : Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift Type de document : texte imprimé Auteurs : H. E. Acosta-Martinez, Auteur ; S. Gourvenec, Auteur ; M. F. Randolph, Auteur Année de publication : 2012 Article en page(s) : pp. 317–328 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Bearing capacity Clays Foundations Model tests Offshore engineering Pore pressures Time dependence Résumé : Environmental and buoyancy forces impart overturning moments and potentially direct uplift to offshore foundation systems. Shallow skirted foundations are an attractive design solution, as negative excess pore pressures developed within the soil plug provide temporary uplift resistance. This paper presents the results of beam centrifuge tests on a shallow skirted foundation in a lightly overconsolidated clay under eccentric transient and sustained uplift. When compared with the response under concentric uplift, the experimental results show a reduction in capacity and an increase in the rate of degradation of capacity under sustained loading. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/issue/geot/62/4# [article] Centrifuge study of capacity of a skirted foundation under eccentric transient and sustained uplift [texte imprimé] / H. E. Acosta-Martinez, Auteur ; S. Gourvenec, Auteur ; M. F. Randolph, Auteur . - 2012 . - pp. 317–328. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 62 N° 4 (Avril 2012) . - pp. 317–328 Mots-clés : Bearing capacity Clays Foundations Model tests Offshore engineering Pore pressures Time dependence Résumé : Environmental and buoyancy forces impart overturning moments and potentially direct uplift to offshore foundation systems. Shallow skirted foundations are an attractive design solution, as negative excess pore pressures developed within the soil plug provide temporary uplift resistance. This paper presents the results of beam centrifuge tests on a shallow skirted foundation in a lightly overconsolidated clay under eccentric transient and sustained uplift. When compared with the response under concentric uplift, the experimental results show a reduction in capacity and an increase in the rate of degradation of capacity under sustained loading. DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/issue/geot/62/4#

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