【摘 要】
：
以长平煤矿3号煤层为例,设计了煤巷超前探测的基本原则与探测方案,论证了底抽巷穿层钻孔实施煤巷超前探放的安全可行性.研究结果表明,依据井田地质条件,井田3号煤层巷道掘进可划分为安全区域、受水威胁区域和异常区;制定在“安全区域”巷道超前探放孔控制超前距≥30m、帮距≤25 m的探测方案;底抽巷穿层钻孔完全覆盖3号煤层巷道帮距20 m、超前距30 m的要求,在“安全区域”底抽巷穿层钻孔实施煤层巷道超前钻探技术是安全可行的.研究结果提高了矿井安全生产效率,具有明显的经济效益.
【机 构】
：
山西长平煤业有限责任公司,山西晋城048000
论文部分内容阅读
以长平煤矿3号煤层为例,设计了煤巷超前探测的基本原则与探测方案,论证了底抽巷穿层钻孔实施煤巷超前探放的安全可行性.研究结果表明,依据井田地质条件,井田3号煤层巷道掘进可划分为安全区域、受水威胁区域和异常区;制定在“安全区域”巷道超前探放孔控制超前距≥30m、帮距≤25 m的探测方案;底抽巷穿层钻孔完全覆盖3号煤层巷道帮距20 m、超前距30 m的要求,在“安全区域”底抽巷穿层钻孔实施煤层巷道超前钻探技术是安全可行的.研究结果提高了矿井安全生产效率,具有明显的经济效益.
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