Experimental Study on Low-Power Disturbing Sediment Dredging System

in the River, velocities of surface water flow typically are larger than the near-bottom flow. Combined with background of artificial disturbance sediment, surface water flows is taken to the river bottom to loose and raise sediment, dredge and so as to achieve the purpose of slowing river siltation. Preliminary tests showed that using low-power diversion disturbing sand dredging system, flow velocity of disturbing nozzle is larger than the incipient velocity of sediment, and the purpose of disturbing sediment and sediment transport can be obtained.