Analysis of bed-building discharge in the middle and lower Ba River

By using the H.ň.Mаккавеев Method, Return Period Method, Bankfull Discharge Method and the Effective Sediment Transport Discharge Method to the hydrological data of Ba River, the bed-building discharge has been calculated and made as flow conditions of river model experiment. Finally, it was applied to the model experiment about Ba River and the results was compared with the one of balance riverbed from the normal river model experiment made by Northwest Water Conservancy Science Research Institute in 2001. The result shows that 6 years working life of the reservoir of Ba-river No.B rubber dam being regime channel is agreed with that of the prototype. It indicates furthermore that the bed-building discharge used in this river model experiment is correct, and the H.ň.Mаккавеев Method, Return Period Method, the LuoMinxun formula of Bankfull Discharge Method has a better applicability to calculate bed-building discharge for Ba River.