磁窑沟矿旺采工作面刀间煤柱合理宽度研究  

Study on Reasonable Width of Coal Pillars in Wongawilli Working Face of Ciyaogou Coal Mine

作　　者：李东 LI Dong(Shanxi Jinshen Energy Co.,Ltd.,Hequ 036500,China)

机构地区：[1]山西省晋神能源有限公司,山西河曲036500

出　　处：《煤炭工程》2019年第S1期6-9,共4页Coal Engineering

摘　　要：针对磁窑沟煤矿不规则边角煤回收的问题,采用理论研究与FLAC3D数值模拟相结合的方法,对不同刀间煤柱宽度下旺采工作面煤柱及围岩内的应力分布情况和破坏规律进行了研究,并对磁窑沟10105旺采工作面刀间煤柱合理留设宽度进行研究.结果表明:在刀间煤柱宽度为2m时最为合理,刀间煤柱均具有较大承载力,能够保持地表稳定不发生剧烈沉降,保证较高资源采出率,为在类似情况下对边角煤进行高效回收具有较大的借鉴意义.In view of the problem of irregular corner coal recovery in the Ciyaogou Coal Mine,the theoretical study and the FLAC3D numerical simulation method are combined to analyze the stress distribution in the coal pillar and surrounding rock of the coal mining face under different coal pillar widths.The situation and the law of damage were studied,and the opinions on the reasonable width of the coal pillars of the 10105 Wongawilli mining face were put forward.The results show that the coal pillar width is 2m,and the coal pillars have a large bearing capacity,which can maintain the stability of the surface without violent sedimentation and ensure the high resource recovery rate.It has great reference significance for efficient recovery of corner coal under similar conditions.

关 键 词：边角煤 旺格维利采煤法 煤柱宽度 数值模拟 

分 类 号：TD822+.3[矿业工程—煤矿开采]