抄録
In order to recover sandy beach, an improvement method of gently sloping revetment with dangerous exposed slippery toe was proposed by the nourishment of gravels. Ishikawa coast was selected as an example of the study. On this beach, gently sloping revetment has been built in front of the existing seawall, resulting in disappearance of sandy beach. Protruded gently sloping revetment was damaged by waves. The effect and stability of beach nourishment were predicted by the contour line change model. Their effectiveness was confirmed by numerical simulations.
