Abstract: Determination of flood study is of great importance in dam periodical inspection. Based on the
statistics of determination factors in the past experience and combined with research results, the determination
principles were advanced in the Guide for safety assessment of hydropower dams in operation, for
reference.

Key words: large dam, flood study, determination principle

摘要：

防洪复核专题确立是大坝安全定检中十分重要的工作，在对以往防洪专题确定因素大量统计分析基础上，在《水电站大坝运行安全评价导则》中提出了防洪专题确定原则，给出背景成果。

关键词: 大坝, 防洪专题, 确定原则