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通常重力坝的上下游坝面采用不变的坡度,但在保证安全的前提下,为节省建筑材料,可采用变坡。本文阐述了建立最优剖面的论据和方法,也是对几年前作者在本刊上发表的一篇论文的补充。
Gravity dam usually upstream and downstream dam surface with a constant gradient, but to ensure safety under the premise of saving building materials, can be used to change the slope. This essay elaborates on the arguments and methods for establishing the optimal profiles and complements an essay published by the author a few years ago in this issue.