Role of the operation of storing clear water and discharging muddy flow in maintaining effective storage of the Dongzhuang Reservoir

With the designed time series of incoming flow and sediment and the operation rules,a series physical model tests for the Dongzhuang Reservoir were conducted to study the sedimentation,sediment flushing,longitudinal and cross section profiles,storage loss and effective storage.The test results show that an effective storage 1.024 billion m 3 under water level 770m can be maintained with the operation of storing clear water and discharging muddy flow.The results show storing clear water and discharging muddy flow is the best way to maintain the effective storage for a heavy sediment-laden reservoir.