CONSTRUCTION OF SHIMONOSEKI OFFSHORE ARTIFICIAL ISLAND

An artificial island off the coast of Shimonoseki is planned as a base of marine transportation mainly by container cargo ships. The island of about 60ha will be reclaimed at the first stage and consist of wharf area, storage area, green area and so on. The design conditions are preservation of the present coast and current and reproduction of sea weed beds around the artificial island. Gentle slope revetments with shallow rubble mounds are planned as sea weed beds. The effects on adhesion of sea weed by the shapes of blocks covering the rubble mounds or by the methods of transplantation are investigated at present by experiments as described in this paper.