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本文发展了有关决口形状与水力特性的数学模型和计算方法，由于形态参数的分离，而克服了决口不光滑造成的计算困难，与层流边界层理论Ｐｏｌｈａｕｓｅｎ方法类似，相似变量的求出，未知变量的数目减少，使数学模型有了进展。本文提出水力参数与时间的关系可用水力参数与一个无因次量关系的无因次过程表示，并对一个任意溃坝决口提供了计算无因次过程线的方法和算例。
In this paper, the mathematic model and calculation method of the shape and hydraulic characteristics of the bursts are developed. Due to the separation of the morphological parameters, the computational difficulties caused by the unsmooth bursts are overcome. Similar to the Polhausen method for the laminar boundary layer theory, the similarity variables are not known The reduction in the number of variables has led to the progress of mathematical models. This paper proposes that the relationship between hydraulic parameters and time can be represented by a dimensionless process with hydraulic parameters and a dimensionless quantity, and provides a method and example for calculating a dimensionless process curve for an arbitrary dam burst.