浅谈单一突出煤层底板巷道位置选择  

Analysis of reasonable location of floor roadway in outburst coal seam

作　　者：李超 LI Chao(No.5 Coal Mine,Shanxi Yangquan Coal Industry(Group)Co.,Ltd.,Yangquan 045209,China)

机构地区：[1]山西阳煤集团五矿,山西阳泉045209

出　　处：《陕西煤炭》2018年第2期103-104,共2页Shaanxi Coal

摘　　要：单一突出煤层煤巷掘进中的瓦斯治理问题比较突出,掘进底板巷预抽瓦斯防突效果较好。在布置底板巷道过程中通过使用FLAC模拟分析技术对底板巷道掘进位置的围岩应力分布特点进行分析,从而确定底板巷道的合理位置。分析证明,对于将预掘底板巷的位置确定在待掘煤层正下方的位置,法距控制在8~15 m的位置合理可行。The problems of gas control in the coal roadway driving in single outburst coal seam are quite outstanding,and the effect of pre-drainage gas for preventing outburst is better.Through FLAC simulation analysis,the stress distribution characteristics of surrounding rock of the floor roadway were analyzed,and the reasonable location of floor roadway was determined.Analysis shows that the pre-excavated floor roadway must arranged in the position below the coal seam,and the reasonable normal distance is about 8 to 15 m.

关 键 词：突出煤层 底板巷道 掘进 位置 

分 类 号：TD712.5[矿业工程—矿井通风与安全]