斜井施工技术在三金考拉水电站中的应用  

Application of Inclined Shaft Construction Technology in Sanjen Khola Hydropower Station

作　　者：田由兴 TIAN You-xing(China Harbour Engineering Company Limited,Beijing 100027,China)

机构地区：[1]中国港湾工程有限责任公司,北京100027

出　　处：《工程建设与设计》2024年第8期145-147,共3页Construction & Design for Engineering

摘　　要：为探究斜井施工技术在三金考拉水电站中的应用问题,提出了适合该水电站斜井的开挖施工技术和井口顶部和底部防护要求;针对斜井开挖采用一次性扩挖成型工艺,提出了锚杆+挂网喷混凝土相结合的锚喷斜井支护方式和基本支护参数;对用于井内交通运输的卷扬机进行受力性能分析。研究表明:斜井施工时的导孔、扩孔钻进施工参数要进行合理控制;卷扬机钢丝绳最小破断拉力为296 kN,钢丝绳安全系数为22.79。In order to explore the application of inclined shaft construction technology in Sanjen Khola Hydropower Station,the excavation and construction technology suitable for the inclined shaft of the hydropower station and the protection requirements of the top and bottom of the wellhead are put forward.Secondly,aiming at the excavation of inclined shaft using a one-time expansion molding process,the supporting mode and basic supporting parameters of anchor-shotcrete combined with hanging net shotcrete are proposed.Finally,the mechanical performance of the winch used for transportation in the well is analyzed.The research shows that the construction parameters of pilot hole and reaming drilling should be controlled reasonably.The minimum breaking force of the rope is 296 kN,and the safety factor of the rope is 22.79.

关 键 词：斜井施工 三金考拉水电站 斜井支护 卷扬机受力性能 

分 类 号：TV554[水利工程—水利水电工程]