Numerical Study on Lateral Response of Offshore Monopile in Sand under Local Scouring Conditions

Currently, p-y models have been broadly adopted for estimating the lateral bearing capacity of large-diameter monopiles in offshore engineering. However, existing curves cannot reflect effect pile diameter D on response under local scouring conditions. In order to extend model a pile, well-calibrated three-dimensional pile-soil performed by ABAQUS is used study ultimate soil resistance P and initial stiffness k Lin’s model. Based numerical simulation results, two diameter-related parameters A B, which represent relationships between obtained model, respectively, are proposed introduced into present modified The comparison results show that capable providing better estimation than condition.