Analysis of the relationship for determining the bed load in sand channels

摘要

The results of the analysis showed that in flatland rivers with a sand channel withu*≥u*0where movement of the bed load is realized mainly in the form of steep waves and ripples 5, for determining the bed loadqbdGGI's relationship (1), in whichqbdis represented as a function of the height of the bed formshw, should be used. This relationship gives results substantially differing from the results calculated by relationships in whichqbdis expressed as a function of the size of the sediment particlesd(8), (9) and valid for conditions not characteristic of sand channels of flatland rivers. Whenu*t≤u*