沖合構造物背後の海浜変形機構に関する実験的研究

抄録

Recently, it is frequent that securing a vast space on the land region in turning out to be difficult and obliged to seek it in the sea area, and because of this, the coastal region has been faced to more wide-ranging beach erosion problems. In planning offshore structures such as artificial islands, it is necessary to forecast the influence of the structurec onstructiono n the beacha nd adjacentc oast.
In the present study, the sediment movement pattern behind offshore structure was studied through a series of three dimensionaml ovableb ed experimentsin an aim to developt he numericalm odel which forecastsm orphological change includingb each erosion. From the experimentalr esults, it has been understoodt hat the sedimentm ovement patterns near the surf zone and offshore zone are clearly separated and this was adopted in the model. The numerical model of morphologicacl hangeo f the coastt hus developedh as been foundt o reproducep hysicalmodels atisfactory