Hydrolical Model Test Research On Zhanghewan Pumped Storage Plant Tail Reservior

The paper beginned with an explanation of pumped storage power station, explained the role of the pumped storage power station and introduced the development of the pumped storage power station at home and abroad.Thereafter, the general introduction of the Zhanghewan Pumped Storage Power Station will be expressed with the descriptions of layout, mode and size of Zhanghewan Pumped Storage Plant discharge buildings.Based on similarity theory, the discharge structure model was designed and built, on which the tests have been carried out to determine the hydraulic parameters of low-lever-outlet in various conditions and verify the reasonableness of the general layout of the original design and the feasibility of the energy dissipation program.According to the problems revealed by tests, suggestions on improvements and treatment measures will be raised to further optimize the size of the discharge structure for energy dissipation and the recommendated programs will be put forward after the tests of shape optimization.The construction of pumped-storage power station in China is at the peak time, many power plants similar to Zhanghewan power station were taken as the head or trail reservoir on the built dams after several years' operation with necessary rehabilitation. During the operation of these dams, a lot of hydrological data was accumulated, therefore, on which the discharge buildings were based and designed with necessary hydraulic model experiments and researches to be carried out to determine the type and size of the discharge structures with satisfaction to the operation conditions. It is hoped that hydraulic model tests on Zhang River Dam Discharge Structures can provide some certain reference for such projects.