摘要
以山西沁新煤矿1#煤层上行开采为研究背景,首先采用理论计算初步判定了1#煤层上行开采的可行性。在此基础上,结合数值计算方法揭示了下部2#煤层开采引起的覆岩应力演化规律。沁新煤矿下部2#煤层开采引起的上覆岩层运动趋于稳定后,采取加强支护措施之后可以进行1#煤层上行开采。
Taking the ascending mining of 1^#coal seam in Shanxi Qinxin coal mine as the research background,it is preliminarily determined by theoretical calculation for the feasibility of ascending mining of 1^#coal seam.On this basis,combining with the numerical ealeulation method,the stress evolution law of the overlying rock caused by the lower 2^#coal seam mining is revealed,and the upper strata movement of the lower 2^#coal seam mining in the lower part of the Qinxin eoal mine tends to be stable,after the reinforcement measures are strengthened,the upper seam mining of the 1^#coal seam can be carried out.
作者
于洋
YU Yang(School of Civil Engineering,Xuzhou Institute of Technology,Xuzhou 221018,China)
出处
《煤炭技术》
CAS
2018年第12期11-14,共4页
Coal Technology
基金
国家自然科学基金资助项目(51504246)
全国建筑材料行业科技创新计划项目(2016-Z-9)
徐州工程学院校级科研项目(XKY2016227)
关键词
老矿井
残采煤层
上行开采
理论计算
数值模拟
old mine
residual coal seam
ascending mining
theoretical calculation
numerical simulation
