特厚煤层综掘工作面瓦斯涌出规律分析

Analysis on gas emission laws on a fully-mechanized heading face of thick seam

宽沟煤矿属于高瓦斯矿井,工作面布置长度大。为了确保工作面综掘期间瓦斯不超限,采用理论分析、现场实测及公式推导的方法对高瓦斯厚煤层综掘工作面瓦斯涌出规律进行研究,分别从煤壁瓦斯涌出系数、瓦斯涌出强度、瓦斯涌出随时间衰减系数、落煤瓦斯涌出量等参数进行分析计算,为确定综掘工作面合理配风量的计算和完善瓦斯防治措施提供了依据。

Kuangou Coal Mine belongs to the high gassy mine,the working surface layout length surface during the comprehensive excavation of gas w as not excee d e d, using theoretical analysis, field measurtion method, to study the gas emission la＊w of fully-mechanized coal mining face in high gassy wall gas emission coefficient, gas emission intensity, gas emission with time attenuation coefficient, coal gas ters of the calculation and calculation, it provides a b s i s for determining the calculamechanized coal mining face and improving the gas control measures.