摘要
结合班多水电站整体水工模型试验,提出了利用宽尾墩能够收缩水流、抬高闸室内水面的特点,改善了泄洪闸堰面上出现的负压;针对下游河床冲刷偏深的问题,通过在混凝土护坦上设置消力墩,极大地减轻了下游冲刷。试验推荐的修改体型已经被工程采用。
Through hydraulic model test on Banduo hydropower station, flaring gate piers are used to converge the flow, raise the water surface of gate chamber, and improve the negative pressure oeeurred on the weir surface of spillway gates. In light of deeper scouring to downstream river bed, baffle blocks are provided at the concrete protection apron to reduce the downstream scouring as much as possible. The recommended shape has been adopted in the project.
出处
《西北水电》
2008年第4期24-26,48,共4页
Northwest Hydropower
关键词
模型试验
底流消能
宽尾墩
消力墩
model test
energy dissipation by hydraulic jump
flaring gate pier
baffle block
