貯水池堆砂の数値シミュレーション

Abstract

Reservoir sedimentation is one of the most important problems in river engineering.Methods to predict the processes of sedimentation of bed material load and wash load aresuggested in detail. Channels often consist of a main channel and flood plains in alluvialrivers. Bed materials on flood plains are different from ones on main channels because finesand and silt that are transported as suspended load or wash load are only deposited onflood plains. The theory to explain such a phenomenon has not been studied becauseof complexity of calculation. So, this paper presents a method to calculate of reservoirsedimentation in channels with flood plains by a simple way. This method is found to beable to reappear real reservoir sedimentation.