分层开采掘进工作面瓦斯涌出规律及预测

以瓦斯地质理论为基础,根据相似原理,用多元统计分析的方法研究了豫西新安煤矿分层开采掘进工作面瓦斯涌出规律,并对瓦斯涌出量进行了预测。研究结果表明,煤层巷道标高是影响瓦斯涌出量的主要因素,其次是瓦斯含量、煤层厚度、煤层顶板泥岩厚度;井田中部瓦斯涌出量较小,浅部、深部和井田的东西翼部涌出量大。预测结果可以作为掘进工作面瓦斯治理的依据。

Gas Emission Regularity in Heading Face with Slicing Method and Its Prediction

Based on gas geology theory and similitude principle, study and prediction were respectively carried out on the gas emission regularity and volume in heading face with slicing method in Xin'an CoalMine, the study results show that the elevation of coal seam roadway is the primary factor affecting gas emission volume, the secondary factors are the gas content, the thickness of coal seam and the thickness of mudstone in the seam top; gas emission volume is relatively small in the middle part of the mine field, and the gas emission volume is large in the shallow and deep parts and on east and west wrings. So the predicted results can be used as the basis for gas control in the heading face.