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

J. Ocean Eng. Technol. 1987;1(2):60-66.

인공양빈해안의 해빈특성에 관한 연구

민병형,김가현,김진생

동아대학교 토목공학과,경남전문대학 토목공학과,동아대학교 토목공학과

Keywords: artificial nourishment, nourishing sand, dissipation rate, deformation, sediment movement

핵심용어: 인공양빈, 양빈사, 분산율, 해빈변형, 표사이동

Abstract

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.