A Study of the Behaviors of Nourishing Sand on the Artificial Nourishment Beach

인공양빈해안의 해빈특성에 관한 연구

The object of this study is to investigate behaviors of beach fill replenished at three coasts of different configurations by analyzing successively measured beach profiles. The main results obtained in this study are summarized as follows; 1) The amount of nourishing sand moved in the longshore direction surpasses the amount of nourishing sand transported in the cross-shore direction regardless of shapes of the coasts and types of the structures. 2) A clear correlation between displacements of shoreline and changes of sectional areas can be found soon after the placement of beach fill in the fields. This implies that the deformation of the artificial nourishment and dissipation or remaining rate of nourishing sand can be predicated by the one-line theory. 3) The patterns of sediment movements in the artificially nourished beaches are clearly found by the analysis of empirical eignfuncitions.