Abstract
At Chirihama beach, the sand-pack as the beach sand erosion control method was installed at sea water line in the sand beach, and the sand-pack effectiveness was examined with the hinterland erosion protection. The crest height by the beach sand erosion control method was arranged as two different types , and monitored how effective such two different crest height are against the hinterland. As a result, T.P.+0.1 m had a better effectiveness as beach sand erosion control method from the point of view of sand beach recovery and the landscape characteristics. Regarding the place arranged by the crest height T.P.+0.5 m, the height target can be easily adjusted to T.P.+0.1 m through discharging the filling material. Since the sand-pack method can adjust the crest height through discharging the filling material, it should be suggested to be effective method in executing the countermeasure for beach sand erosion in which effective target crest height is difficult to forecast while planning, but adjustable during the installation.
