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在分析近距离煤层群上行开采机理与主要影响因素的基础上,针对传统煤层群上行开采判别方法的局限性,对上位煤层的覆岩状况与上行开采的关系进行了阐述.给出了平顶山四矿近距离薄煤层群和内蒙古酸刺沟煤矿厚煤层群上行开采的工程实例,并确定了上行开采的关键技术措施.理论分析、数值模拟和工程实践证明,上位煤层覆岩岩性及结构对上行开采有影响.研究成果扩大了近距离煤层群上行开采的应用范围,对衰老矿区遗留煤炭资源的回收和特大型现代化新型矿区的开发规划及西部矿区的生态环境保护都具有重要的意义.图1,表3,参9.
Based on the analysis of the mechanism and the main influential factors of ascending mining in the near coal seams, the limitations of the conventional mining method in the upward mining are discussed, and the relationship between the overlying rock status and the upward mining in the upper coal seams is expounded.Finally, And the thick coal seams in the Suancigou coal mine in Inner Mongolia, and the key technical measures for the ascending mining are confirmed.Theoretical analysis, numerical simulation and engineering practice prove that the lithology and structure of overlying strata in the upper coal seam The research results have expanded the application scope of the ascending mining in the close distance coal seams, which is of great significance to the recovery of the coal resources left in the aging mining area, the development planning of the extra large modern new mining area and the ecological environment protection in the west mining area. 1, Table 3, reference 9.