摘要
去学水电站采用表孔溢洪洞和中孔泄洪洞联合泄洪,溢洪洞及泄洪洞明流洞纵坡均选择为8%,水力计算和模型试验研究表明,其底坡是合适的。两洞内流速分别呈现加速和"等速流"特性,流速控制在30 m/s以内,避免了超高速水流问题。提出的"等流速"明流泄洪洞底坡的计算及底坡选择可供同类工程参考使用。
The flood-relief system of Quxue Hydropower Station consists of surface spillway tunnel and middle discharge tunnel. The bottom slopes of two tunnels are chosen to 8%, and the hydraulic calculations and model testes show that the bottom slopes are appropriate. The flow is accelerated in spillway tunnel and is approximate uniform in discharge tunnel. The flows are not more than 30m/s, show that the tunnel designs have eliminated the super high-velocity flow. The method for determining the bottom slope of tunnel with approximate uniform free flow can be as reference to similar projects.
出处
《水力发电》
北大核心
2011年第3期45-46,71,共3页
Water Power
关键词
等流速
底坡
计算
溢洪洞
泄洪洞
去学水电站
uniform flow
bottom slope
calculation
spillway tunnel
discharge tunnel
Quxue Hydropower Station
