摘要
结合天悦煤矿4.0 m极近距离煤层赋存特点,通过现场矿压监测得出上下层煤支承压力分布规律及围岩破坏特点。并对下层煤提出减压区开采和稳压区开采2种开采方式,最终通过理论分析及数值模拟方法综合对比研究,确定合理错距。
Combined with the 4.0 m extremely-near coal seams occurrence characteristics,the abutment pressure distribution law of two seams and the damage characteristics of surrounding rock is found by means of field monitoring.The reduced pressure zone and original rock stress zone mining methods is proposed and finally find,the rational separation distance by means of theoretical analysis and numerical simulation method comprehensive comparative study.
出处
《煤炭技术》
CAS
北大核心
2014年第7期149-152,共4页
Coal Technology
关键词
极近距离煤层
同采
合理错距
extremely-near coal seams
simultaneous production
rational separation distance
