龙潭水库导流泄洪洞运行水力特性研究

Hydraulic Characteristic Research of Longtan Reservoir Spillway Diversion Tunnel

隧洞是常见的泄水建筑物,在水利工程中有着广泛的应用。以铜川市赵氏河龙潭水库导流泄流放空隧洞的水工模型试验为依托,对无压泄洪洞内弯道水流特性进行了全面深入的研究,尤其是对无压洞弯道段自由水面的高差、脉动压强的变化规律进行了研究。同时提出工程上解决无压隧洞弯道高速水流问题的方案,可作为其他类似工程存在水力学流态问题的借鉴和参考。

Tunnels have been widely used as common discharge structures in hydraulic engineering. According to the hy- draulic model test of the diversion spillway tunnel in Tongchuan Longtan reservoir, an in-depth research on the flow char- acteristics at the curved section of the free flow spillway tunnel was conducted, especially on the free surface elevation and the variation of fluctuating pressure of the tunnel. The flow pattern along with the change of flow in the tunnel were the basis of designing the tunnel＇ s size and structure. At the same time, the solutions to the high velocity flow at the curved section of the free flow spillway tunnel were proposed. This study can provide some reference for other hydraulic engineering projects with similar flow problems.