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本文利用总流动量定理系统地分析了宽尾墩消力池的消能机理，导出有关水力计算公式，并详细地阐述了消力池底板块的稳定性设计．针对五强溪水电站右消力池的泄洪运行情况，利用本文提出的方法从流态结构、板块的稳定性受力等方面，分析了消力池底板块失事的主要原因．
In this paper, the total energy flow theorem is used to systematically analyze the energy dissipation mechanism of the tail-beater pielling tank. The hydraulic calculation formula is derived and the stability design of the bottom plate of the stilling pool is expounded in detail. In view of the flood discharging operation of the right ankle pool of Wuqiangxi Hydropower Station, the main reason for the failure of the bottom plate of the stilling pool is analyzed from the aspects of flow structure and the stability of the slab by using the method proposed in this paper.