WAVE OVERTOPPING MITIGATION BY A VERTICAL WALL OR A WAVE RETURN WALL AT THE END OF A PITCHED ROCK SLOPE

This extended abstract contains two topics: stability of a pitched rock slope (in contrast to randomly placed rock) and mitigation excessive wave overtopping at an existing slope. The single layer could reasonably well be predicted by the Van der Meer formula. criteria for start damage failure, however, become much stricter armour layer. commonly used EurOtop-equations were fit influence factors vertical wall, with without bullnose, return wall. A wall will increase crest level, where replaces part structure has same level as original structure. Test conditions focused on steep waves (high steepness) only, this is actual design situation Singapore structures facing sea directly.