Abstract: Water conservancy and hydropower projects have the characteristics of long construction period, complex structure, and being greatly affected by natural factors. An accidental factor in operation may sometimes lead to systematic safety accidents of the whole hydropower station. The author summarizes some typical cases of domestic hydropower station accidents in recent years, and analyzes some risk factors needing attention in the construction and operation management of hydropower stations, to provide reference for design, construction and operation management.

Key words: hydropower station, dam, accident, cause analysis

摘要： 水电站作为重要的国计民生工程，有着建设周期长、结构复杂、受自然因素影响大等特点。运行中一个偶然因素，有时会导致整个水电站发生系统性安全事故。笔者总结了近年来国内水电站事故的一些典型案例，分析探讨水电站建设和运行管理中应注意的一些风险因素，以供设计、建设和运行管理参考。

关键词: 水电站, 大坝, 事故, 原因分析