官帽舟水电站导流洞出口优化试验研究

Research on Optimization of Tunnel Exit of Guanmaozhou Hydropower Station

为解决官帽舟水电站导流洞出口水流淘刷右岸边坡所引起的山体坍塌,通过物理模型试验,对导流洞出口型式进行优化,优化后的导流洞出口下游河道水流平顺,冲坑位于河道中央,出口下游右岸边坡无淘刷,不会威胁下游狮子大桥的稳定。

In order to solve right bank erosion near diversion exit of Guanmaozhou Hydropower Station, which was caused by collapses of mountain,the pattern of diversion tunnel exit was optimized based on physical model testing. After optimization, the river flow downstream the exit was smoothed, scour pit was in the central channel without erosion to right bank. The stability of the slope and the Shizi Bridge were ensured.