Abstract: In the impoundment stage of Three Gorges reservoir，the improved conditions of navigation have played an important role in promoting the economic development of the upstream region． In the flood period，however，the rapids contained the promotion of reservoir navigation capacity due to the rapid flow． The 3000-ton ships are mainly navigation ships of Three Gorges Reservoir Area． However，there is no research about it． Therefore，this article was based on the actual measurement when the 3000-ton ships traveled the rapids of Three Gorges Reservoir Area and the theoretical calculation formula to determine the navigable hydraulic parameter of 3000-ton ships． The results of research contribute to the channel rectification project， the navigation period of the Reservoir Area and the Three Gorges shipping returns．

Key words: Three Gorges Reservoir Area, rapids, 3000-ton ships, navigable hydraulic parameter

摘要： 三峡水库蓄水以后，库区航道通航条件大为改善，对上游经济发展具有重要的促进作用。但在汛期库尾洪水 急流滩，由于水流较急通航能力受限，遏制了库区通航能力全面提升。针对3000吨级代表船舶在库尾洪水急流滩 自航上滩的实测资料，结合川江水力指标理论研究方法，确定了三峡库区洪水急流滩河段3000吨级船舶自航上滩 的水力指标。为库尾洪水急流滩的规划、设计及整治提供理论依据。

关键词: 三峡库区, 急流滩, 3000吨级船舶, 通航水力指标