In this paper,the joint energy dissipation mechanism of stilling basin and dental kaffle pier is analysed according to additional momentum hydraulic jump theory.

• 用“附加动量”水跃理论分析齿墩与消力池联合应用的消能机理,用跃后水深、水跃长度或单宽水跃容积减少的百分数,估计新增消能设施的经济效益。