五马水库底孔坝段优化设计  

Design optimization of the bottom outlet section of Wuma dam

作　　者：曹继彦[1] 

机构地区：[1]山西省水利水电勘测设计研究院,山西太原030024

出　　处：《大坝与安全》2014年第4期6-9,共4页Dam & Safety

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.

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 

分 类 号：TV653[水利工程—水利水电工程]