4000 m高海拔地区水电工程泄水建筑物防空蚀破坏设计研究

Study on Anti-Cavitation Damage Design of Water Discharge Structures in Hydropower Projects in Areas at Altitude of 4000 m

随着西藏4000 m高海拔地区水利水电工程建设的发展,所在地区大气气压较低,泄水建筑物在高速水流的作用下,极易发生空蚀破坏。通过对高海拔地区水电工程泄水建筑物高速水流空化数影响进行分析,提出了高海拔地区泄水建筑物防空蚀破坏设计原则及相应措施,可为高海拔地区泄水建筑物防空蚀破坏设计提供依据。

In the development of water conservancy and hydropower projects in the high-altitude area of 4000 m in Tibet,due to the low atmospheric pressure,the drainage structures are prone to cavitation damage under the action of high-speed water flow.By analyzing the influence of high-speed water flow cavitation number of water discharge structures in high-altitude areas,the design principles and corresponding measures for anti-cavitation damage of water-discharge structures in high-altitude areas are proposed,which provides the basis for anti-cavitation damage design of water-discharge structures in high-altitude areas.