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1 防洪标准复核1.1 设计洪水复核成果水库建成之后曾多次作过设计洪水复核,从历次复核成果知,直接法推求的设计洪水均比间接法推求的设计洪水小,其主要原因是水库上游兴建了40余座中小型水库,改变了原有的汇流条件,影响了洪水还原精度。所以,2001年是根据雨量资料计算设计洪水成果。其暴雨系列为1953～1997年共45年
1 Flood Control Standard Review 1.1 Design Flood Review Results The design flood review has been conducted several times since the completion of the reservoir. From the results of previous reviews, the design flood demanded directly by the direct method is less than the design flood demanded by the indirect method, mainly due to the construction of the reservoir upstream More than 40 small and medium sized reservoirs have changed the original confluence conditions and affected the flood reduction accuracy. Therefore, in 2001, the design flood results were calculated based on rainfall data. The heavy rain series from 1953 to 1997 a total of 45 years