抄録
There are many isolated coral reefs around the Okinawa Islands, and most of themhave configuration of circular plateau with diameter about 400-2000m. The depths ofwater on the coral reefs are about 2m at high tide and become about 0.5-1.0m at lowtide. Up to this day, high utilizations of the coral reefs have been proposed, oneof them is an application of a method developing artificial beach along open sea coast.
Because of existance of strong longshore currents induced by high incident waves, generally, a natural beach is not formed on the coaral reef. In this study, a method ofdevelopment of artificial beachs along open sea coast for making beachs on the reefsis proposed.
