丹江口水库下游近坝段河道推移质输沙率的研究

Based on field data in Han river downstream Danjiangkou reservoir, bedload yield and its generate in rivers downstream reservoir was analyzed. Because of the entrap of reservoir, bedload in rivers downstream reservoir mainly came from the erosion of riverbank and riverbed. With time going on and riverbed being coarsened, bedload yield would decrease, but even the coarsen was roughly finished, bedload transportation still existed and could influence the river in a long period. Paola method and Nicholas method were introduced to compute the bedload yield, and was modified together with the reality of rivers downstream reservoir into an empirical compute method. Compare with the field data of Danxiang Reach and Wangmiao Reach, the result proved to be fine.