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Dynamic centrifuge model tests on clay embankments / B. L. Kutter in Géotechnique, Vol. 39 N°1 (Mars 1989) 

Public ISBD [article]  in Géotechnique > Vol. 39 N°1 (Mars 1989) . - pp. 91 –106 Titre : Dynamic centrifuge model tests on clay embankments Type de document : texte imprimé Auteurs : B. L. Kutter, Auteur ; R. G. James, Auteur Année de publication : 2007 Article en page(s) : pp. 91 –106 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Stability  Centrifuge  modelling  Slopes  Clays  Earthquakes  Deformation Résumé : Centrifuge modelling is a valuable means for obtaining data to study the response of geotech-nical structures to infrequent or extreme events such as earthquakes. The results of a study of five clay embankments subjected to 23 simulated earthquakes on the Cambridge geotechnical centrifuge are presented and analysed. The influence of earthquake intensity on dynamic magnification, the existence of a yield acceleration, and a delayed failure were observed in this test series. Deformation patterns observed by X-ray radiography are presented. The stress history and soil shear strength data for the models are presented to enable other researchers to test their ability to predict the observed embankment response. The mechanisms of deformation and failure of the embankments are observed and discussed. Well-documented data of this type are not available from natural earthquakes, since large earthquakes are infrequent and unrepeatable, and it is difficult to predict where they will strike. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.1989.39.1.91 [article] Dynamic centrifuge model tests on clay embankments [texte imprimé] / B. L. Kutter, Auteur ; R. G. James, Auteur . - 2007 . - pp. 91 –106. Génie Civil Langues : Anglais (eng) in Géotechnique > Vol. 39 N°1 (Mars 1989) . - pp. 91 –106 Mots-clés : Stability  Centrifuge  modelling  Slopes  Clays  Earthquakes  Deformation Résumé : Centrifuge modelling is a valuable means for obtaining data to study the response of geotech-nical structures to infrequent or extreme events such as earthquakes. The results of a study of five clay embankments subjected to 23 simulated earthquakes on the Cambridge geotechnical centrifuge are presented and analysed. The influence of earthquake intensity on dynamic magnification, the existence of a yield acceleration, and a delayed failure were observed in this test series. Deformation patterns observed by X-ray radiography are presented. The stress history and soil shear strength data for the models are presented to enable other researchers to test their ability to predict the observed embankment response. The mechanisms of deformation and failure of the embankments are observed and discussed. Well-documented data of this type are not available from natural earthquakes, since large earthquakes are infrequent and unrepeatable, and it is difficult to predict where they will strike. ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.1989.39.1.91