Experiment Study on Sediment Control and Sediment Discharge of Hydropower Station on Sediment-Laden River in Northwest China

Taking Xiacheng Hydropower Station in Taohe River as an example,we had done sediment control and sediment eject effect of physical model experimental study of sediment-laden river in Northwest China.The results show that,a)in power station entrance,setting up reasonable sediment detention weir and sediment guiding dike can play a role in promoting sediment discharge,without a large sediment deposition before sediment detention weir;b)under power station water intake,setting up reasonable sediment eject way,and choosing a good chance to eject sediment in entrance of sediment way,which can form the clear front,have a good effect on sediment eject.Meanwhile,it suggests that we periodically open sediment eject way to discharge sediment,and ensure sediment eject way clear.