摘要
本文应用面积和系数法提出了不规则梯形和等腰梯形渠道临界水深的直接计算式。该式概念清楚，形式简单又满足工程精度和范围的要求。适合在水力设计中应用。
This paper pments a curve fiting of critical depth of irregular trapezoidal canal by applying an equivalent snare method.Comared with those suggested by other authors,this kind of formula is clear in Its idars,and simple in Its form.Still,It can be within the scope and Precision of eogineering.So,It may be referred in hydraulic design and hydraulic teaching.
