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Article dans une revue
Numerical prediction of liquefied ground characteristics from back-analysis of lateral spreading centrifuge experiments
Abstract : In this paper, liquefied and laterally spreading soils triggered by seismic shaking are modeled as viscoplastic Bingham media characterized by two rheological parameters: the undrained residual shear strength and the Bingham viscosity coefficient. Since the precise evaluation of these two characteristics directly by appropriate in situ or laboratory experimental tests remains a very difficult task, an identification procedure is developed to assign numerically realistic values to both rheological characteristics from back-calculation of liquefaction-induced lateral spreading using centrifuge experiments. The proposed numerical procedure is applied successfully to two series of reported centrifuge tests where lateral displacements data during shaking were available. © 2013 Elsevier Ltd.
https://hal-enpc.archives-ouvertes.fr/hal-00946116
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Soumis le : jeudi 13 février 2014 - 16:48:08
Dernière modification le : vendredi 15 janvier 2021 - 11:56:06
Contributeur : Ist Enpc Connectez-vous pour contacter le contributeur
Soumis le : jeudi 13 février 2014 - 16:48:08
Dernière modification le : vendredi 15 janvier 2021 - 11:56:06