活鸡兔煤矿顶板稳定性分析与支护方案设计  

Roof Stability Analysis and Support Scheme Design of Huojitu Coal Mine

作　　者：董俊亮 王庆雄 李晓龙 王军[3] DONG Jun-liang;WANG Qing-xiong;LI Xiao-long;WANG Jun(Technology Research Institute,National Energy Shendong Coal Group,Erdos 017209,China;Department of Production,National Energy Shendong Coal Group,Erdos 017209,China;College of Energy and Mining,China University of Mining Technology(Beijing),Beijing 100083,China)

机构地区：[1]国能神东煤炭集团技术研究院,鄂尔多斯017209 [2]国能神东煤炭集团生产部,鄂尔多斯017209 [3]中国矿业大学(北京)能源与矿业学院,北京100083

出　　处：《科学技术与工程》2023年第1期123-128,共6页Science Technology and Engineering

基　　金：中国博士后科学基金面上项目(2021M700427)。

摘　　要：为精细化研究活鸡兔煤矿2-2煤层顶板岩层稳定性并提出针对性的支护方案,采用理论分析、现场探测、数值模拟等方法对活鸡兔2-2煤层范围内岩层顶板稳定性进行了分析与计算。结果表明:活鸡兔2-2煤层巷道以Ⅰ类顶板为主,局部区域出现Ⅱ类和Ⅲ类顶板;巷道顶板整体完整性好,局部小裂隙发育;工作面回采扰动对Ⅰ类顶板巷道稳定性影响较小,对Ⅲ类顶板巷道存在有限影响。据此提出了活鸡兔2-2煤层Ⅰ类、Ⅱ类和Ⅲ类顶板条件下巷道支护方案并进行了现场试验,结果表明所提出方案能有效地维护巷道顶板稳定。In order to study the roof stability of Huojitu 2-2 coal seam in detail and put forward the targeted support scheme,the roof stability of Huojitu 2-2 coal seam was analyzed and calculated by using the methods of theoretical analysis,field detection and numerical simulation.The results show that the roadway roof of Huojitu 2-2 coal seam is mainly class I,class II and class III.The roadway roof is relatively complete with few cracks.The mining disturbance of working face has little influence on the stability of class I roadway,and has limited influence on class III roadway.Accordingly,the roadway support scheme under the conditions of class I,class II and class III roadway of Huojitu 2-2 coal seam was proposed,and the field test was carried out.The results show that the proposed scheme can effectively maintain the stability of roadway roof.

关 键 词：顶板稳定性分类 围岩结构探测 数值模拟 支护参数设计 

分 类 号：TD324[矿业工程—矿井建设]