FLAC model validation Centrifuge NJM01

A 2D nonlinear dynamic model of a pile-supported wharf was created and calibrated using recorded data from a centrifuge test in prototype scale. The piles in the centrifuge test and the numerical model were subjected to the combined effects of inertial loads from the superstructure mass and kinematic loads from liquefaction-induced ground deformations during earthquake loadings. The numerical model was created in FLAC. Pressure-dependent multi-yield surface constitutive model was used to simulate undrained cyclic behavior of sands with different relative densities and the rockfill. The objective of the numerical modeling was to create a calibrated numerical model that captures key responses of the wharf and the soil in order to be used in subsequent studies. Practical simplifications were made to simulate the 3D response of piles, wharf, soils and the centrifuge container in a 2D analysis. The implications of these simplifications are discussed in the final report.