Investigation of Coarse Sediment at the Xiaobeiganliu Reach in the Yellow River

摘要

Based on the data measured on a bed movable physical model for a pilot project, the coarse diversion at the Xiaobeiganliu reach, the paper represents the research results of critical issues like location of diversion (entrance) sluice, the entrance/exit sluice operation, separation of coarse sediment from fine sediment over the weirs at the bends, layout of the grid- patterned dikes. By combining all the techniques together, we could both trap on the local floodplains the coarse sediment, which is a part of the sediment diverted from the Middle Yellow River, and discharge the fine sediment back to the river.