综采工作面瓦斯预抽钻孔半径研究  

Research on Drilling Radius of Gas Pre-pumping in Fully Mechanized Coal Face

作　　者：王朝阳 Wang Chaoyang(Shanxi Pingshu Coal Industry Co.,Ltd.,Shanxi,045400)

机构地区：[1]山西平舒煤业有限公司,山西045400

出　　处：《当代化工研究》2020年第8期53-54,共2页Modern Chemical Research

摘　　要：某煤矿201工作面的相对瓦斯涌出量达到10.8m^3/t,工作面的绝对瓦斯涌出量达到58.97m^3/min为高瓦斯工作面。为有效的抽采工作面的瓦斯确保安全生产,采用FLUENT数值模拟、现场试验确定预抽钻孔的间距为5m,有效抽放半径为2.5m。The relative gas emission of 201 working face of a coal mine is 10.8m^3/t,and the absolute gas emission of working face is 58.97m^3/min.In order to effectively extract the gas in the working face to ensure the safety of production,fluent numerical simulation and field test are used to determine that the spacing of pre drainage boreholes is 5m and the effective drainage radius is 2.5m.

关 键 词：瓦斯涌出量 高瓦斯工作面 预抽钻孔 抽放半径 

分 类 号：TD324[矿业工程—矿井建设]