伏岩煤业3~#煤层瓦斯抽采合理孔口负压研究

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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。
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