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一、概述由于对廉价电能需求的增高,水电站的建设得到广泛的开展。1940年按世界性的统计,各国共建成了376座高度30公尺以上的混凝土重力坝,到1950年增加到646座;到1955年只在资本主义国家已建成的和正施工的共有1,100多座混凝土坝。分析一下近期的筑坝经验,是大大有助于正确地选择某种混凝土坝的坝型的。决定坝型选择的主要因素是坝址的地质,地形和水文条件。
I. Overview As the demand for cheap electricity increases, the construction of hydropower stations has been widely carried out. In 1940, according to a worldwide statistics, a total of 376 concrete gravity dam of over 30 meters in height were built in each country, increasing to 646 in 1950; by the year 1955, more than 1,100 completed and under construction projects were completed in the capitalist countries alone Concrete dam. An analysis of recent damming experience is a great help to the correct choice of a concrete dam type. The main factors that determine the choice of dam type are the geology, topography and hydrological conditions of the dam site.