摘要
金安桥工程利用1号导流洞单洞分流下进行大江截流,截流流量为829 m3/s,龙口最大落差4.72 m,最大流速达7.15 m/s,截流段河床地形、地质条件复杂。在截流模型试验各种工况的试验成果基础上,结合截流的现场地形条件、分流特点、截流填筑材料等方面的分析比较后确定了上、下游土石围堰一次断流、右岸2条导流洞全年导流和60 m宽戗堤右岸单向进占立堵的截流方案,顺利实现了大江截流。
The river closure for Jin＇anqiao Project was conducted on the conditions of using one diversion tunnel for water discharge, and with the flow rate of 829 m^3/s, the maximum gap drop of 4.72 m and the maximum flow velocity of 7.15 m/s. Based on the model tests for river closure under different conditions and the analysis on field topography, diversion features and filling materials, the closure schemes with end-dumping closure by an 60 m-width dike from right bank, full fiver closed by upstream and downstream earth-rock cofferdams and water released by two diversion tunnels in fight bank are adopted.
出处
《水力发电》
北大核心
2011年第1期49-51,70,共4页
Water Power
关键词
截流设计
截流施工
金安桥水电站
fiver closure design
fiver closure construction
Jin＇anqiao Hydropower Station
