A fully-coupled effective stress method of analysis incorporating an elastic-plastic constitutive modelspecifically designed for modelling sand behaviour was used to numerically simulate shake table experiments onpiles in laterally spreading soils. Details of numerical procedures including modelling of stress-strain behaviourof sand, identification of the initial stress state and 3-D dynamic analysis of the soil-pile system are presented inthis paper. Primary objective of the simulation was to assess the accuracy of the 3-D analysis in predicting theresponse of the pile foundation and to identify parameters that are critically important for successful numericalsimulation of lateral spreading experiments. The computed response is compared to that measured in the test andkey features of the behaviour of the ground, foundation piles and sheet pile wall are discussed.
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