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Article Dans Une Revue Computers and Geotechnics Année : 2013

Numerical prediction of liquefied ground characteristics from back-analysis of lateral spreading centrifuge experiments

Résumé

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.
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Dates et versions

hal-00946116 , version 1 (13-02-2014)

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S. Montassar, Patrick de Buhan. Numerical prediction of liquefied ground characteristics from back-analysis of lateral spreading centrifuge experiments. Computers and Geotechnics, 2013, 52 (-), pp.15/07/2014. ⟨10.1016/j.compgeo.2013.01.010⟩. ⟨hal-00946116⟩
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