EXPERIMENTAL STUDY ON THE RELATION OF SAND DEPOSITS ON A LARGE-GRAVEL BED SURFACE TO SUSPENDED SAND LOADS

Abstract

In this research, we have taken into account the necessity of technical scheme in order to see the movements of two big different sized grain groups, gravel in size 100 millimeter and sand in size below 1 millimeter. And we concentrated on the situation that sand passed over the bed laying big-sized-gravels in a state of suspended and predominant, and gave experimental consideration to the phenomenon of sand deposition into the gaps of gravels. We focused on the point that the sand suspension occurred on the sand bed that existed partly, and were based on the phenomenal analysis of suspended load and the past knowledge about integration into bed variation, examined methods of calculation about the relation between the concentration of suspended load and the ratio of area that covered with sand.