摘要
五马水库坝址坝基存在倾向下游的软弱夹层,下游河道呈S型,底孔出口挑射高速水流会冲击坝脚和下游山体,对大坝造成严重威胁。鉴于此,将泄洪冲沙底孔出口由挑流调整为底流消能。笔者对优化设计加以总结,以资借鉴。
Weak interlayer towards downstream was contained in the Wuma dam foundation and the downstream channel was S shaped. The high-speed flow from the bottom outlet dashed against the dam toe and the rock downstream which threatened the safety of the dam. Thus, the trajectory bucket type en- ergy dissipation was replaced by bottom-flow energy dissipation in design optimization, worth reference.
出处
《大坝与安全》
2014年第4期6-9,共4页
Dam & Safety
关键词
泄洪冲沙底孔
挑流消能
冲坑
底流消能
扩散式消力池
outlet for flood release and sand discharge
trajectory bucket type energy dissipation
scourhole
bottom-flow energy dissipation
diffusion stilling basin
