台阶式溢洪道的消能问题  

The Research on Energy Dissipation on Stepped Spillways

作　　者：田嘉宁[1] 李建中[1] 大津岩夫 张志昌[1] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048 [2]日本大学理工学部

出　　处：《西安理工大学学报》2002年第4期346-350,共5页Journal of Xi'an University of Technology

基　　金：陕西省教育厅专项科研计划项目 (0 1 JK1 83 )

摘　　要：阐述了台阶式溢洪道的水流流况分类 ,叙述了在一定斜坡角度情况下的试验研究结论 ,并分析了台阶段各流况的试验资料及下游消力池水跃消能的试验资料。结果表明 ,台阶式溢洪道的总消能率可达 95%左右 ,其中台阶段消能率占 85%以上 ,下游水跃消能只占总能量的 1 0 %左右 。This paper describes the flow types firstly, and respectively presents the research results on stepped spillways at a certain slope, and puts emphasis on analyzing experiment data under different flows and the ones of energy dissipation of the water jump created in downstream stilling basins. The research proves that energy dissipation ratio on stepped spillways can amount to 95%, and energy dissipation ratio on steps shares its 85%, while energy dissipation ratio of the water jump created in downstream stilling basins can only share 10% of the total. Results show that stepped spillways works effectively for the energy dissipation.

关 键 词：水流流况 台阶式溢洪道 消能 

分 类 号：TV653[水利工程—水利水电工程]