摘要
麦日水电站引水枢纽泄流时下游海漫的水流流速较高,下游河道冲刷较为严重,需要采取有效的防护措施。通过水工模型试验,对枢纽工程的泄流能力、护坦末端及下游海漫的流速以及下游河道的冲刷进行了研究。研究表明,枢纽泄流能力满足设计要求,在下游河道铺设四面体防冲区,可以有效地减小下游河道的冲刷,为了节省工程造价,建议防冲区的长度为50m,宽度从15m逐渐减小为10m。
Because the downstream velocity is very high in Mairi Hydropower Station when water .is discharged, leading to serious downstream channel erosion, thus effective protective measures should be taken. Through hydraulic model tests of the project, the author of this paper has studied the discharge capacity; apron end and sea drift velocities as well as the downstream erosion on the river course. The studies show that discharge capacity meets the design requirements, and the impingement tetrahedron zone built in the downstream river course can effectively reduce the downstream erosion. In order to save the cost, it is suggested that the size of the impingement tetrahedron zone should be 50 m long with the width decreased gradually from 15 m to 10 m.
出处
《电网与清洁能源》
2013年第3期97-99,104,共4页
Power System and Clean Energy
关键词
模型试验
泄流能力
防冲措施
model test
discharge capacity
scour prevention measures
