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作 者:田利民 Tian Limin(Shanxi Guxian Jingu Coal Industry Co.,Ltd.,Linfen 054600,China)
机构地区:[1]山西古县金谷煤业有限公司,山西临汾054600
出 处:《煤炭与化工》2025年第4期19-23,27,共6页Coal and Chemical Industry
摘 要:针对金谷矿9+10号煤顺槽巷道围岩控制难题,以数字孪生系统下顶板、底板、实体煤侧三者之间强度关系耦合支护方案及支护参数,建立三者强度关系,使用数值模拟方法,同时采用有限元分析(FEA)和离散元法(DEM),建立FLAC3D模型,模拟金谷煤矿9+10号煤顺槽坚硬顶板不同排距支护效果,确定不同排距顶板支护方案。通过巷道表面位移观测及顶板钻孔窥视,支护效果良好。In order to solve the problem of surrounding rock control in No.9+10 coal roadway of Jingu Coal Mine,the strength relationship between roof,floor and solid coal side was established by coupling support scheme and support parameters under digital twin system.Using numerical simulation method,finite element analysis(FEA)and discrete element method(DEM),FLAC3 D model was established to simulate the support effect of different row spacing of hard roof in No.9+10 coal roadway of Jingu Coal Mine,and determine the support scheme of roof with different row spacing.Through the observation of roadway surface displacement and roof drilling peep,the support effect was good.
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