我国河流的洪水大部分是由于暴雨造成的。在连续暴雨的情况下,常常形成多峰型的洪水过程线。这种多峰型的洪水过程线给水库溢洪道的计算带来了很大的复杂性。尤其是在规划设计阶段,需要作若干比较方案来选定最经济的废泄建筑物,若用详细的计算方法,不论试算法、分析法或图解法,计算的工作量都很大。实际上,这种繁复的计算工作在规划设计阶段并不是必要的。在苏联,对于不设闸门的溢洪道的一般常用的简算法是高切林公式,它的基本原理 Most of the floods in rivers in our country are caused by heavy rains. In the case of heavy rains, a multi-peak flood process line is often formed. This multi-peak flood process brings great complexity to the calculation of reservoir spillways. In particular, at the planning and design stage, a number of comparison programs are needed to select the most economical waste structures. If detailed calculation methods, trial methods, analytical methods or graphic methods are used, the calculation workload is very large. In fact, this complicated calculation is not necessary in the planning and design stage. In the Soviet Union, the commonly used simple algorithm for spillway without gates is the Gauteng’s formula, and its basic principle