Abstract
Artificial beach nourishment method as the defence work against beach erosion has been conducted. However, it was very difficult to estimate the shoreline and volumetric changes after nourishment and also the moving of the nourished sand is not clarified. On the other hand, recently, coarser sand nourishments have been noticed as effective favored work. In this study, in order to investigate the behavior of the fill sand, laboratory experiment was carried out. By tracing of the fill sand movements, the moving velocities of the fill sand can be related to to the characteristics of the wave.