关键词: 卡拉水电站, 底流消能, 宽尾墩

Abstract: The flood discharge and energy dissipation design of Kala hydropower station, which has the characteristics of high water head, large discharge, narrow river valley and complex geological conditions, is very difficult. According to these characteristics, and through comprehensive comparison between two types of energy dissipators, i.e. "flaring pier and stilling basin with drop sill" and differential ski-jump energy dissipation, the former has been selected. Combined with the hydraulic model test, the flaring pier configuration, section of stilling basin and end sill elevation have been optimized and further studied to provide a reference for the design of flood discharge and energy dissipation of similar projects.

Key words: Kala hydropower station, bottom-flow dissipation, flaring pier