摘要
介绍了井下大断面巷道施工监测新方法和研制的新型测杆,并探讨了监测数据在井下大断面巷道围岩反分析、收敛规律和松动圈等方面的应用。结合工程实际,提出了前岭铁矿的围岩松动圈、掘进控顶距等参数,为类似工程提供借鉴和指导。
In this paper, a new construction monitoring method for large cross-section tunnels in underground projects and a new astringe surveying rod developed are introduced. And the application of monitored data in the wall rock back analysis, convergence law and loose loops for large Cross-section Tunnels is discussed. On the basis of some actual projects, such parameters as wall-rock loose loops and unsupported roof span are provided for Qianling Iron Mine, which can be used as reference and guide for similar projects.
出处
《有色金属（矿山部分）》
2008年第1期11-13,共3页
NONFERROUS METALS(Mining Section）
关键词
巷道掘进
施工监测
控顶距
地下工程
tunneling
construction monitoring
unsupported roof span
underground projects
