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设计洪水是水文分析计算的一项重要内容,也是水利工程设计中一项重要指标,水库调节下的下游河道设计洪水计算方法与天然河流有着很大的区别,其洪水的峰、量及过程都发生改变,不能用任何已知的频率曲线线型来适配,从而达到外延的目的,本文将引用平均值的概念,对水库坝址上、下游断面的洪峰流量均值化处理,使多年平均洪峰流量能在设计河段相互转化,解决设计洪水计算所必要的统计参数——平均洪峰流量。
Design flood is an important part of hydrological analysis and calculation and an important indicator in the design of hydraulic engineering. The calculation method of design flood of downstream channel under reservoir regulation is very different from that of natural river. The peak, amount and process of flood Change, can not use any known frequency curve line type to adapt, so as to achieve the purpose of epitaxy, this article will cite the concept of average value of the reservoir dam site, the downstream section of the peak flow average treatment, the multi-year average peak The flow can transform each other in the design river section, solving the statistical parameter - average peak flow, necessary for design flood calculation.