反井钻机在水布垭水电站地下工程导井开挖中的应用

Application of Raise-boring Machine in the Driving Pilot Shaft of Underground Engineering of Shuibuya Hydropower Station

简要介绍了采用LM-200型反井钻机进行水布垭地下厂房的通风竖井、母线竖井、斜井导井开挖的过程经验,从水布垭工程实践中系统总结了反井钻机操作、导洞开挖位置布置、控制孔位偏差、施工进度的控制、不良地质情况处理等反井钻机在工程中常见问题的解决方法,为其他工程提供了宝贵经验。

This paper briefs the experience of applying LM-200 raise-boring machine to the air shaft, bus shaft, and slope shaft of Shuibuya underground powerhouse works. It also sums up the common problems and their solution methods of raiseboring machine in the practice, such as the operation of raise-boring machine, the arrangement of excavation position of diversion tunnel, deviation of control hole position, control of construction schedule, and treatment of poor geological conditions. All these provide valuable experience for other projects.