PHYSICAL MODELLING FOR THE PRINCESS ELISABETH ISLAND, OVERTOPPING DESIGN FOR A CAISSON WITH A DOUBLE WAVE WALL GEOMETRY

For the design of the world’s first offshore energy island, consisting of vertical caisson breakwaters with a double row of wave walls to prevent the land area from severe wave overtopping, intense physical modelling has been carried out in 2D wave flumes and a large 3D wave basin. Some lessons learned throughout the detailed design will be presented, with a focus on wave overtopping. Rockwork stability and wave impact forces also have been measured but are not the focus of this abstract.