摘要
通过对伏岩煤业3#煤层二采区走向鉴定副巷与北胶带大巷瓦斯抽采参数（负压、流量、浓度）的现场实测,研究了瓦斯抽采负压与纯流量之间的关系。结果表明,二者之间的关系可用3次幂函数表示,即q=Ap3＋Bp2＋Cp＋D,并提出了最优的孔口负压为40~45 kPa。
Through in-situ measurement of gas drainage parameters（ negative pressure,flow and concentration） in belt main entry and another entry of 3#coal seam No. 2 mining area in Fuyan Coal Mine,the relation between gas drainage negative pressure and pure flow is studied. Research results show that the relation between gas drainage negative pressure and pure flow can be described by three times power function,q = Ap3＋ Bp2＋ Cp ＋ D,the optimal negative pressure range of drainage hole is from 40 to 45 kPa.
出处
《煤矿安全》
CAS
北大核心
2013年第12期11-13,共3页
Safety in Coal Mines
关键词
瓦斯抽采
抽采负压
抽采流量
抽采浓度
煤与瓦斯突出
gas drainage
drainage negative pressure
drainage flow
drainage concentration
coal and gas outburst
