锦丘煤矿12406工作面覆岩运动及矿压显现规律研究  

Research on supporting Technology of Soft rock Roadway in Papaya Mine

作　　者：盖鹏艳 黄晓鹏 徐宜岭 GAIYanpeng;HUANGXiaopeng;XU Yiling(Jinqiu coal mine of Tengzhou Guozhuang Mining Co.,Ltd.,Zaozhuang 277515,China)

机构地区：[1]滕州郭庄矿业有限责任公司锦丘煤矿,山东枣庄277515

出　　处：《煤矿现代化》2021年第4期81-83,86,共4页Coal Mine Modernization

摘　　要：研究锦丘煤矿12406工作面矿压显现规律对下方煤层及滕北矿区有着积极的指导作用。采用固支梁和悬臂梁理论、UDEC离散元数值模拟和现场监测的方法对12406工作面覆岩运动规律开展研究。结果表明:通过固支梁、悬臂梁理论公式计算得出,初次来压步距为34 m,周期来压步距为16 m;UDEC数值模拟得出,初次来压步距、周期来压步距分别为35 m和15 m;现场矿压监测发现初次来压步距为36 m,周期来压步距15 m左右,并且端头支架的阻力峰值要大于中部支架。数值模拟、理论分析、现场监测具有较好的一致性。The study of 12406 working face of Jinqiu Coal mine has a positive guiding effect on the lower coal seam and Tengbei mining area.The overlying rock movement law of 12406 working face was studied by using the theory of solid supported beam and cantilever beam,numerical simulation of UDEC discrete element and field monitoring.The results show that the initial pressure step is 34 m and the periodic pressure step is 16 m,which is calculated by the theoretical formula(the theory of fixed support beam and cantilever beam).The UDEC numerical simulation results show that the initial pressure stepping and periodic pressure stepping are 35 m and 15 m respectively.On-site pressure monitoring found that the initial pressure stepping distance was 36 m,and the periodic pressure stepping distance was about 15m.The peak resistance of the end support is greater than that of the middle support.Numerical simulation,theoretical analysis and field monitoring have good consistency.

关 键 词：薄煤层 理论分析 数值模拟 矿压观测 

分 类 号：TD324[矿业工程—矿井建设]