反井钻机法导井施工中的风险分析及应对措施研究  

Study on the Risk Analyses and Countermeasures of Back Well Drill in Excavation of Pilot Shaft

作　　者：魏斌[1] 娄国川[1] 郭卫新[1] 杨继华[1] 

机构地区：[1]黄河勘测规划设计有限公司,河南郑州450003

出　　处：《资源环境与工程》2017年第4期489-492,共4页Resources Environment & Engineering

摘　　要：反井钻机法在竖井开挖中具有效率高、安全性好的优点,其导井开挖是关键也是难点。以CCS水电站竖井导井施工为背景,研究导井施工可能面临的风险、容易遇到的问题和应对措施,并结合自身实践总结一些竖井导井开挖中的若干经验,以期为今后的竖井导井开挖提供一些借鉴。Among the shaft excavation methods, back well drill is regarded as an important type due to some advantages ol high efficiency and good safety. It is worth noting that the excavation of pilot shaft is one of the key difficulties during construction. Taking the construction of shaft well in CCS Hydropower Station as application background,possible risks, easily encountered problems and countermeasures are researched in this paper. Moreover, based on working practices, some experiences in the excavation of pilot shaft are summed up so as to provide guidance for the well excavation in the future.

关 键 词：反井钻机 导井施工 风险分析 应对措施 

分 类 号：TV52[水利工程—水利水电工程]