青龙寺煤矿顶板隐蔽致灾因素特征分析  

Analysis of roof hidden disaster-causing factors in Qinglongsi Coal Mine

作　　者：解鹏 王海军 尹家宽 吴艳 李亚军 韩珂 XIE Peng;WANG Haijun;YIN Jiakuan;WU Yan;LI Yajun;HAN Ke(Qinglongsi Coal Mine Branch,Yunlin Energy Co.,Ltd.,CHN Energy Group,Yulin 719408,China;Xi’an Research Institute Co.,Ltd.,China Coal Technology and Engineering Group Corp.,Xi’an 710077,China)

机构地区：[1]国家能源集团榆林能源有限责任公司青龙寺煤矿分公司,陕西榆林719408 [2]中煤科工西安研究院(集团)有限公司,陕西西安710077

出　　处：《中国矿业》2023年第S02期229-236,共8页China Mining Magazine

基　　金：中煤科工集团西安研究院有限公司科技创新基金项目资助(编号:2019XAYMS19,2020XAYJC03)。

摘　　要：顶板灾害是威胁矿井安全、高效、绿色、智能开采的主要灾害,以新民矿区青龙寺煤矿为研究对象,通过航空遥感影像分析、地面地质调查、地质钻探、钻孔地球物理测井、钻孔剖面对比分析、钻孔岩芯精细描述、岩石力学参数测试、地面沉降监测、工作面矿压数据监测等综合技术手段,综合分析煤层顶板隐蔽致灾因素类型、空间分布及其危险性。研究结果表明:煤矿存在坚硬顶板、过深沟开采、碎软-风化基岩顶板、工作面过露天采坑薄基岩开采、采空区大面积悬顶等顶板隐蔽致灾因素类型,针对上述隐蔽致灾因素提出相应的防治措施和建议。研究成果为煤矿安全、高效开采提供地质保障,为邻近矿井及相似地质条件的矿井顶板隐蔽致灾因素分析、评价提供参考。Roof disaster is the main disaster of safe,efficient,green and intelligent mining of mines,taking the Qinglongsi Coal Mine in Xinmin Mining Area as the research object,through aerial remote sensing image analysis,surface geological survey,geological drilling,drilling geophysical logging,drilling cross-section ratio analysis,fine description of drilling core,rock mechanical parameters testing,surface settlement monitoring,working surface mine pressure data monitoring,mineral pressure data analysis and other technical means,comprehensive analysis of the types of hidden disaster-causing factors,spatial distribution and risk of coal seam roof.It is found that there are hidden disaster-causing factors such as hard roof plates,excessive deep trench mining,crushed soft-weathered bedrock roofs,thin bedrock of open pits,backfilling of open pits,large-area overhangs in goaf areas,and concentrated coal pillars in coal mines,and put forward corresponding prevention and control measures and suggestions for the above hidden disaster-causing factors.The research results provide geological guarantee for safe and efficient mining of coal mines,and provide reference for the analysis and evaluation of hidden disaster-causing factors on the roof of adjacent mines and similar geological conditions.

关 键 词：坚硬顶板 过沟开采 碎软顶板 煤矿安全 水力压裂 注浆加固 露天采坑回填区 隐蔽致灾因素 防治技术 

分 类 号：TD82[矿业工程—煤矿开采] P642.3[矿业工程—矿山开采]