河床形状と流砂の相互関係と河床波の変形過程について

Abstract

In this study, bed form response to change of water discharge was investigated experimentallyand consequently, it was noticed that such an alluvial process was to depend much upon the geo-metrical properties of bed forms and their distribution. Therefore, the relationship between bedconfiguration and sediment transport was investigated by an experiment for two-dimensional scourand the geometrical properties of individual waves of sand waves were inspected based on bed profiledata.Next, using some techniques in the theory of stochastic process, the distributions of the scaleof sand waves were discussed. And in the last part of this paper, a model to describe the collapseprocess of sand waves due to suddenly decreasing of water discharge has been derived and wasverified by the experimental results.