茂通煤业煤层瓦斯分布规律及涌出量预测

Prediction of Seam Gas Distribution Law and Emission in Maotong Coal Industry Co.,Ltd.

以茂通煤业有限公司开采的2号、3号煤层为工程背景,对煤层瓦斯含量进行测定并分析地勘钻孔瓦斯含量测定数据,通过线性回归建立煤层埋深与瓦斯含量的关系,得出煤层瓦斯含量随埋深的增加而逐渐增加,同时采用分源预测法预测矿井瓦斯涌出量,当矿井生产能力达0.9 Mt/a时,在开采2号、3号煤层过程中矿井最大绝对瓦斯涌出量分别为34.06 m^(3)/min、32.98 m^(3)/min,最大相对涌出量分别为17.99 m^(3)/t、17.42 m^(3)/t。

By determination and analysis of gas content in No.2 and No.3 coal seam in Maotong Coal Industry Co.,the author concludes that the gas content increases gradually with the increase of buried depth by establishing the relationship of seam buried depth and gas content through linear regression method,and makes a prediction of the maximum absolute gas emission of 34.06 m^(3)/min and 32.98 m^(3)/min and the maximum relative gas emission of 17.99 m^(3)/t and 17.42 m^(3)/t respectively in mining No.2 and No.3 coal seam in the case of 0.9 Mt/a production capacity through division prediction method.