Abstract
A model for predicting the dynamic response and liquefaction of earth structures was developed. The model was based on Biot's theory for the propagation of elastic waves in a porous medium and an empirical relation put forth by Finn, et al. for the volumetric strain resulting from an applied shear strain. The finite element method was utilized to solve the equations. The model was applied to a hypothetical earth dam. The results of the analysis were compared to the observed liquefaction in the San Fernando dam and were shown to be reasonable.
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