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１ 概 况 *石门大坝是单园心前倾双曲拱坝，设计坝高９０ｍ，顶、底厚分别５ｍ和２８ｍ，坝顶弧长２５４ｍ，大坝中心角在１２９°～４３°间。施工中坝基欠挖，实际最大坝高８８．６ｍ，坝底宽２７．３ｍ。工程分别于１９７２年、１９７４年临时和永久投运，至今分别为２
1 Overview * The Shimen Dam is a single-park concentric double curved arch dam with a designed dam height of 90m and top and bottom thicknesses of 5m and 28m respectively. The crest arc length is 254m and the dam center angle is between 129 ° and 43 °. During construction, the foundation is under-dredged, and the actual maximum dam height is 88.6m and the bottom of the dam is 27.3m wide. The projects were temporarily and permanently put into operation in 1972 and 1974, respectively, up to now