论文部分内容阅读
对高孔隙高瓦斯特殊顶板下介休安益煤业煤矿9#煤层回采工作面瓦斯涌出分别进行了分源预测和实测,并对结果进行了分析比较。结果表明现行的《矿井瓦斯涌出量预测方法》中分源预测法不完全适应高孔隙高瓦斯石灰岩特殊顶板下回采工作面瓦斯涌出量预测。针对该矿9#煤层提出了回采工作面瓦斯涌出预测修正公式,可供类似条件煤层参考。
The gas emission from No.9 seam of Jiehuayi coal mine under special high-porosity and high-gas roof has been separately predicted and measured. The results are analyzed and compared. The results show that the source prediction method in the prediction method of mine gas emission does not fully meet the gas emission prediction of the working face under special roof with high porosity and high gassy limestone. Aiming at the 9 # coal seam of this mine, a prediction formula of gas emission prediction in mining face is proposed, which can be used as reference for coal seam of similar conditions.