过去在拱坝设计中,需先拟定断面进行坝体平面布置,然后计算坝体应力,这样工作量大,计算麻烦,往往需要计算几次甚至几十次,反复修改断面,才能得到较好成果;同时,过去文献中介绍的大都是理论分析和混凝土坝的经验公式,而对砌石拱坝断面拟定问题介绍很少,因此初选砌石拱坝断面则更为困难。本文在总结理论分析基础上结合我国砌石拱坝实际 In the past, in the design of arch dam, it was necessary to draw up the cross section for the plane layout of the dam and then calculate the dam stress so that the workload was heavy and the calculation was troublesome, often requiring several or even tens of times to be calculated. At the same time, most of the literatures introduced in the past are theoretical analysis and empirical formula of concrete dams. However, there is little introduction on the formulation of masonry arch sections, so the section of the masonry arch dam is more difficult. Based on the summary of theoretical analysis, this article combined with the actual situation of masonry arch dam in our country