Experiment and Research of the Impact from Sanmenxia Operational Level on Tongguan Elevation

摘要

By means of the physical model, 5 groups of experiments with different water levels and water and sediment conditions were carried out. The impact on lowering the Tongguan elevation caused by different water and sediment conditions and the different water levels were compared and analyzed. The test results indicate that lowering the water level in front of the dam may adjust silting location within the reservoir that is advantageous to wash out and lower the Tongguan elevation. However, compared with the water level, the favorable water and sediment conditions have a bigger influence on the Tongguan elevation.