一、前言传统计算设计洪水的方法是坝址设计洪水。前些年提出了入库设计洪水问题,原因是:水库建库前后库区的产汇流条件发生了变化,特别是汇流条件发生了变化,建库后理论上应以入库设计洪水进行调洪 First, the preface The traditional method of calculating the design flood is dam site design floods. A few years ago put forward the design of flood storage problems, because: before and after the reservoir reservoir storage and production conditions have changed, especially the confluence of changes have taken place, in theory, the reservoir should be designed flood flood management