Stability of Armour Units on Breakwater Heads under Multidirectional Waves

This study gain the assessment referring to the stability weight of armour stones for the breakwater head and trunk under multidirectional waves through the series of laboratory experiments in the multidirectional wave basin and the numerical calculations of the stone weight using the velocity measurements and the static stability formula for the armour stone on the heads and trunk. Furthermore, in order to support more comprehensive understanding of the stability weight of armour stones on the head and trunk under multidirectional waves, the dynamic stability formula for the armour stone, which is taken the rolling motion of stones on the slope of breakwaters at every moment into consideration, is developed.