云南澜沧江糯扎渡水电站地下厂房岩锚梁施工技术

Research on Rock Anchor Beam Excavation Technology of Lancang River Nuozhadu Hydropower Station Underground Powerhouse in Yunnan Province

岩锚梁主要用于大型水利枢纽地下厂房机电设备安装、维修时桥式吊机的行驶。岩锚梁与岩台梁及其他结构梁相比,减小了地下厂房的跨度、减少了工程量、降低了工程造价、增加了洞室的稳定性。分析了云南澜沧江糯扎渡水电站地下厂房岩锚梁开挖方案,探讨了其施工方法和技术保障措施。

Rock anchor beamis mainly used in the installation and maintenance of mechanical and electrical equipment in the underground powerhouse of large water conservancy project. Compared with rock bench beam and other structural beam, it can narrow downthe span of underground powerhouse, reduce the work amount, reduce the project cost and increase the stability of cavern. It analyzes the Yunnan Lantsang River Nuozhadu Hydropower Station underground powerhouse rock anchor beam excavation plan and discusses its construction method.