超深引水竖井压力钢管安装技术

Installation technology of steel penstock in the ultra-deep diversion shaft

江西洪屏抽水蓄能电站每条引水洞设有2条竖井,上竖井高程差277 m,下竖井高程差295 m,压力钢管直径4 800-5 200 mm,文中介绍了压力钢管安装时采用的合理先进的施工技术方案,取得了良好的效果,为超深引水竖井压力钢管安装提供了宝贵经验。

There are two shafts in each water diversion tunnel in the Hongping pumped storage power station of Jiangxi province. The elevation differences of upper shaft and lower shaft are respectively 277 meters and 295 meters, the diameter of the steel penstock is 4800-5200 mm. The paper introduces the advanced and reasonable construction technology scheme in the process of the steel penstock installation. Based on the achieved good results, the technology could provide valuable experience for the steel penstock installation in the ultra-deep diversion shaft.