摘要
针对陕北府谷县郭家湾煤矿的浅埋煤层开采,通过对开采方法的研究,采用有限元仿真试验模拟方法,对实际采用的隔离煤柱和区内煤柱留设的不同方案进行了计算模拟试验,研究了采场煤柱群及上覆岩层的稳定性,探讨了造成大面积垮落灾变的机理,为陕北浅埋煤层以及西部类似条件下中小矿山合理、安全、经济的开发提供了重要的参考依据。
According to the mining of shallow seam in Guojiawan Mine in northern Shannxi,China,the different schemes for remaining partition of coal pillars and regional coal pillars in practice are studied by using FEM numerical simulation. The stability of pillars in the stope and overlying strata is studied. The mechanism of the large area caving is explored. The important aspects of reasonable,safe and economic exploitation are provided for shallow seams in northern Shannxi and for similar medium-sized and small-sized mines in the west China as well.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第15期2539-2542,共4页
Chinese Journal of Rock Mechanics and Engineering
基金
陕西省教育厅重大产业化培育资助项目(01ZC09)。
关键词
浅埋煤层
煤柱
开采
有限元分析
数值分析
numerical analysis,shallow coal seam,coal pillars,large area caving
