The traditional different-source prediction method did not consider the impact of the upper adjacent seam extraction on the gas emission in the seam being mined, and the error of the calculated results was relatively larger. For this reason, the paper proposed to add the impact coefficient K4 of the upper adjacent seam extraction on the gas emission in the working face into the traditional formula when the gas emission quantity in the working face was calculated, that is, the calculation formula of the gas emission quantity in working face was changed into q1=K1 K2 K3 K4 mM (W0-Wc ) . After the impact coefficient K 4 of the upper adjacent seam extraction on the gas emission in the working face was added into the traditional formula, the calculation method for gas emission quantity became more rational and the calculated results were more accurate.% 传统的瓦斯涌出量分源预测法未考虑到上部邻近层开采对本煤层煤体瓦斯涌出的影响,其计算结果误差较大。为此,提出在计算回采工作面瓦斯涌出量时,在传统计算公式中加入上部邻近层开采对工作面煤体瓦斯涌出影响系数K4,将回采工作面瓦斯涌出量计算公式改为q1=K1K2K3K4mM(W0-Wc)。加入上部邻近层开采瓦斯涌出影响系数后,瓦斯涌出量计算方法更加合理,计算结果更加准确。
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