东保卫煤矿火成岩侵入区巷道围岩钻孔窥视分析

摘要

Dong Baowei coal mine on the West Wing of the roadway excavation in the met igneous intrusive zone of surrounding rock stability,, through field investigation and preliminary analysis of the igneous rock invasion zone of roadway surrounding rock deformation characteristics; analysis method by drilling peep, on roadway of sedimentary rocks and igneous rocks in the drilling peep, to peep results are detailed analysis, master the igneous rock intrusion rock breaking state and distribution rule of, provides reliable basic data for igneous rock invasion of sur-rounding rock in the area of control scheme of.%针对东保卫煤矿西翼大巷掘进时遇火成岩侵入区影响围岩稳定问题, 通过现场调研初步分析了火成岩侵入区巷道围岩变形特征;利用钻孔窥视分析方法,对巷道沉积岩区及火成岩区分别进行了钻孔窥视,对窥视结果进行了详细分析,掌握了火成岩侵入区岩石破碎状态及分布规律,为火成岩侵入区围岩控制方案研究提供了可靠地基础数据.