一、概述设计洪水的推求和水库调洪演算是水利水电工程为确定工程规模及防洪安全所必须进行的水文水利计算,对于无实测流量资料的小流域的洪水计算,以往大多采用一九七八年《江西省可能最大暴雨及频率暴雨图集》(以下简称图集)进行手算,不但其工作量较大,且繁锁,特别是推求三天概化设计洪水过程线,通过作图叠加,量取各时段的 I. Overview The calculation of design flood and reservoir flood regulation are the hydrological and hydrological calculations that must be carried out by hydropower and hydropower projects in order to determine the project scale and flood control safety. For the calculation of floods in small watersheds without measured flow data, most of the past uses 1978 It is not only a heavy workload but also a cumbersome one. In particular, the three-day generalized design flood process line is inferred. Through the superimposition of drawings, , Measure the time period