ABSTRACT
This paper demonstrates a finite element model that can precisely capture the pile and soil responses under seismic motion. This model uses the ‘small-strain’ variant of Hardening Soil model to account for the effect of hysteresis damping and modulus degradation on soil behav-iour. The model parameters were calibrated for Speswhite Kaolin using the laboratory test results. The finite element model aims to simulate the dynamic centrifuge test conditions reported by Iovino et al. (2022) where the obtained responses for single pile and soil (i.e., at free field condition) were compared with the test data. Furthermore, nonlinear dynamic ground response analyses using DEEPSOIL are performed to substantiate the obtained soil responses from FE simulations. This comparative study highlights the consequence of seismic motion on pile-soil interaction. Successful simulation of centrifuge test results establishes suitability of the numerical analysis and the consti-tutive model and subsequently lays the foundation to conduct further research.
