Abstract: This paper analyzes and summarizes the operational behavior of four 200-meter-class concrete gravity dams in China. The results indicate that the deformation, seepage, and foundation stresses of these four ultra-high dams are generally normal, and local seepage defects in the dam body and foundation do not yet affect the normal operation of the dams. This study can serve as a reference for the operational management of similar high dams.

Key words: concrete gravity dam, deformation, seepage, foundation stress

摘要： 对我国4座200 m级混凝土重力坝运行性态进行分析总结，结果表明4座超高坝的变形、渗流和坝基应力总体正常，坝体、坝基局部渗流缺陷尚不影响大坝正常运行，可为同类高坝运行管理提供参考。

关键词: 混凝土重力坝, 变形, 渗流, 坝基应力