Investigation of the difference of sediment transporting inflows between one and two sides intakes of a diversion dam in a channel bend

The main purpose of this study was to investigate the uniformity of sediment transporting flows into bilateral intakes on both sides of a spillway and compare it with a single intake either in outer or inner bend. The results indicated that most of the sediment deposition is towards the inner-bend intake. In the case of a single intake structure, the comparative results with the bilateral intakes indicated that both the water inflow rate and sediment entrainment increase in the case of a single intake located on the outer bend. In the case of a single intake on the inner bend, the water inflow rate decreases, but the inward-sediment load increases. It is necessary to use both the intake sill and sluice way to control the sediments entering the intakes, especially for the inner-bend intake.