抄録
Dredging is carried out for maintenance of navigation channel. By the dredging, a large amount of sediments are produced. In the paper, we studied the utilization method of the dredged sediments. Hydraulic model experiments on water exchange enhancement of Hiroshima Bay were carried out by using the technique of bay mouth topography modification utilized the dredged sediments. From the study, followings are obtained. The topography modification of bay mouth is very effective to strengthen the residual circulation in Hiroshima Bay. And it is also highly effective to enhance water exchange of the bay water.
