综采放顶煤工作面瓦斯涌出构成及高位定向钻孔抽采效果研究  

Study on the composition of gas gushing from fully mechanized coal top coal face and the extraction effect of high-level directional borehole

作　　者：尹鹏飞 刘思迪 YIN Pengfei;LIU Sidi(Liujialiang Coal Mine,Xuangang Coal and Power Co.,Ltd.,Jinneng Holding Coal Group,Xinzhou 034000 China;Shenyang Research Institute Co.,Ltd.,Fu shun 113122,China)

机构地区：[1]晋能控股煤业集团轩岗煤电有限责任公司刘家梁煤矿,山西忻州034000 [2]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122

出　　处：《煤矿现代化》2024年第3期105-109,共5页Coal Mine Modernization

摘　　要：为了合理选择刘家梁矿2号煤层瓦斯治理方法,采用现场实测、单元划分、理论分析的方法对刘家梁煤矿2号煤层综采放顶煤工作面瓦斯来源及其涌出构成进行分析,运用数值模拟对2215工作面高位定向钻孔合理层位进行研究并跟踪考察其抽采效果,确定出采空区抽采瓦斯量主要由工作面涌出,采取高位定向钻孔和上隅角插管瓦斯治理技术能较好的适用于2号煤层综采放顶煤工作面,其合理垂直布孔范围为22~40 m,水平布孔范围为10~40 m。In order to reasonably select the No.2 coal seam gas treatment method of Liujialiang Mine,on-site measurement,unit division,The method of theoretical analysis analyzes the gas source and gushing composition of the fully mechanized top coal face of No.2 coal seam in Liujialiang Coal Mine,and uses numerical simulation to study the reasonable horizon of the high-level directional borehole of the 2215 working face and track its extraction effect,and determines that the amount of gas pumped in the goaf is mainly gushing out from the working face,and the high-level directional borehole and the upper corner intubation gas treatment technology can be better applied to the No.2 coal seam fully mechanized top coal face,and its reasonable vertical hole distribution range is 22 m~40 m,the horizontal range of hole layout is 10~40 m.

关 键 词：综采放顶煤 瓦斯来源 瓦斯涌出量 构成分析 高位定向钻孔 

分 类 号：TD712[矿业工程—矿井通风与安全]