抄録
The Naha breakwater, for which a sloping top caisson covered with wave dissipating blocks was adopted, had been already constructed except 40-m at the head of south side breakwater of 900-m in total length. Since this breakwater head is located close to Naha airport, installation of blocks is very difficult because of the obstacle limitation of the airport. In addition, the wave runup height must be considered not to exceed this surface.
The sloping slit caisson was selected as a alternative structure in order to reduce wave runup without wave dissipating blocks. This paper describes the hydraulic characteristics of this structure investigated by the model experiments and numerical simulations.
