Experimental Modelling of Wave-Structure-Soil Interaction of a Floating Offshore Wind Turbine at Large Scale

The understanding of the wave-structure-soil interaction around marine structures is important in order to drive design decisions towards lean, yet resilient marine infrastructure. In particular, in the light of the increasing use of the marine environment for renewable energy generation, analysis of the wave-structure-soil interaction becomes increasingly relevant. While most experimental studies on wave-structure-soil interaction are conducted at small to medium scale, this paper presents the initial results of an experimental test campaign on the wave-structure-soil interaction of a floating offshore wind turbine at large scale. The data of the period averaged pore pressure reveal a significant buildup of pore pressure beyond the onset of liquefaction, which can be attributed to the additional structural loading when comparing results to similar, isolated wave-soil interaction cases in the absence of a structure.