Transversal and vertical distributions of suspended load concentration in natural river bend

The measured data of suspended load concentration in Laijiapu bend of the Jingjiang river reach are carefully sorted out,judged and selected.3 groups of persuasive and representative data have been selected to analyze the transversal distribution law of suspended load grain-size and vertical average concentration in the river bend.The vertical distribution of suspended load concentration in river bend is comprehensively analyzed.The results show that the mean grain size and the average concentration of the suspended load depend on the average flow velocity of cross-section.The mean value and standard variance of vertical concentration of the suspended load depend at convex bank are generally higher than those of concave bank.The average concentration of coarse sand is higher than that of fine sand.And the vertical distribution of grouped grain-size concentration of coarse sand is more uneven that that of fine sand.