摘要
针对晓明矿地质备件,综合运用关键层理论、围岩平衡法、"三带"法、数值分析及巷道探查等方法分析了7#煤层回采后上覆围岩活动规律,确定了上部4-1#煤层的底板下沉量、煤体破坏程度及煤层应力状态以及煤层的连续性和完整性。综合理论分析、数值分析及现场探查结果,判定4-1#煤层上行开采是可行的,并提出回采设计方案,为晓明矿及类似条件矿井进行上行开采提供了参考。
According to the geological conditions of Xiaoming Mine, the key strata theory, surrounding rock equilibrium method, three zones method, numerical analysis and roadway exploration are used to analyze moving rule of surrounding rock overlying NO. 7 coal seam after mined it. Floor sinkage, broken degree, continuity , integrity and the stress condition of NO. 4-1 coal seam are determined. From the result of theoretical Analysis, numerical simulation calculation and exploration, ascend mining feasibility of NO. 4-1 coal seam is determined, with its mining design scheme proposed. References for ascend mining in Xiaoming Mine or oneg geological conditions being similar to it can be gotten from these.
出处
《世界科技研究与发展》
CSCD
2011年第5期879-881,共3页
World Sci-Tech R&D
基金
辽宁省教育厅科技研究项目资助(2009S047)
关键词
上行开采
数值分析
巷道探查
煤层应力状态
围岩活动规律
ascend mining
numerical analysis
roadway exploration
stress condition of coal seam
moving rule of surrounding rock
