丹竹坪水电站黄沙坝址设计洪水的推求

Design flood routing for Huangsha dam site of Danzhuping Hydropower Plant

丹竹坪水电站黄沙坝址设计洪水计算由于流量资料不足,又难以使用相关法来插补延长。只能用暴雨资料来推求工程设计洪水。通过历史洪水调查,分析黄沙河的洪水特性,根据其设计暴雨雨型,经过产流汇流分析计算和实测洪水单位线,采用瞬时单位线、历史洪水经验频率分析等方法,推算出黄沙坝址设计洪水。

Because there is no sufficient flow data and it is difficult to insert, supplement or extend the data by correlation method, the design flood of Huangsha dam site of Danzhuping Hydropower Plant can only be routed with storm rainfall data. The flood characteristics of Huangsha river was analyzed through investigation of historical flood, based on which storm rainfall type is designed. By run off producing and confluence analysis and calculation as well as measuring flood unit hydrograph, instantaneous unit hydrograph and historical flood empirical frequency analysis methods are used to route the design flood of Huangsha dam site.