Design on Flood Releasing Structures for Lower Reservoir of Guigang Pumped Storage Power Station
The flood releasing structures of pumped storage power stations have their own characteristics and are usually arranged in a form of"surface hole+bottom hole".For the lower reservoir with small runoff,the building with free overflow in the surface hole is more conducive to operation and management.Due to the high frequency of use of the bottom hole,it is necessary to set the gate valve control.Based on the topographic and geological conditions of the lower reservoir of Guigang Pumped Storage Power Station,the layout schemes of flood releasing structures are compared and selected,and the structural design of flood releasing structure is expounded and verified by hydraulic model test.The results show that it is appropriate to use shaft flood discharging tunnel combined with diversion tunnel and discharge pipe;The structure design is basically reasonable,and the hydraulic conditions and energy dissipation effect are good.The research results can provide reference for the design of flood releasing structures of the same type of power stations.
flood releasing structureshaft flood discharging tunnelhydraulic model testlower reservoirGuigang Pumped Storage Power Station
万方数据
维普
