冶勒水电站压力管道斜井施工

冶勒水电站压力管道斜井较长，倾角较大，中斜井、下斜井地下渗水严重，施工难度较大。为了解决此问题，在斜井施工中，采用了反井钻机钻进和人工开挖相结合，导井贯通后自上而下全断面人工扩挖的施工方案；对渗水采用刻集水槽、铺设排水钢管、包裹断面以形成雨棚等方法进行了处理，同时对施工中出现的事故也进行了妥善的处理，保证了施工正常进行。

Construction of inclined shaft for the penstock of the Yele Hydropower Station

Due to its long inclined shaft, large angel of inclination, large seepage quantity on the middle and the lower inclined well, the construction of the inclined shaft for the penstock of Yele Hydropower Station is difficult. During its construction, the reversed well boring machine and artificial excavation have been adopted. After the guide well is completed, the artificial full-section excavation from upper to bottom was used. The seepage treatment is composed of the collection tank diversion, penstock diversion, section parcel forming canopy diversion. These methods achieve good results.