高山峡谷大流量下溢流表孔体型试验  

Experiment on spillway surface orifice structure for large-discharge spill in high-mountain-and-dup canyon area

作　　者：南军虎[1] 李正安[2] 乔明秋[3] 陈晴[3] 

机构地区：[1]兰州理工大学能源与动力工程学院,甘肃兰州730050 [2]兰州理工大学电气工程与信息工程学院,甘肃兰州730050 [3]北京国电水利水电工程有限公司,北京100024

出　　处：《兰州理工大学学报》2011年第6期42-46,共5页Journal of Lanzhou University of Technology

摘　　要：亚碧罗水电站坝址处河道较窄,单宽流量大,且下游左岸存在5个错落体,为了分散水舌落点并避免下泄水流直接倾砸岸坡,以减小对河床的冲刷,结合亚碧罗水电站1∶50和1∶100两种比尺的模型试验,对表孔总体布置型式、掺气和消能设施进行系列优化试验后提出推荐方案.试验结果表明,掺气设施选用合理,挑射水流在空间上形成差动结构,消能区域增大,水舌落点分布均匀,较好地解决了工程问题,也为同类工程提供了重要参考.The river of Yabiluo hydropower station at dam site is narrow, unit width discharge is large, five dotted about bodies exist downstream on its left bank. In order to scatter the points of nappe fall and avoid hitting of the spill against the bank slope directly, and reduce the scour of the river bed, a recom- mendation plan was presented according to the experiment on the 1 .＂ 50 and 1 ~ 100 scaled models for Yabiluo hydropower station to optimize the overall layout of the surface conducted a series of optimized ex- periment to orifices and the aeration and energy dissipation facilities. The experimental result showed that the aeration facilities was reasonable, the jody flow formed into differential patterns in the air, the area of energy dissipation increased and the points of nappe fall was evenly distributed, so that it has solved the engineering problems and provided important reference for similar projects.

关 键 词：溢流表孔 模型试验 掺气 挑射水流 

分 类 号：TV135.2[水利工程—水力学及河流动力学]