【摘要】 分析了新集一矿6-1煤层掘进面瓦斯涌出来源。针对瓦斯涌出特点,采取增大掘进面供风量、松动预裂爆破等瓦斯综合防治措施,取得了良好的效果。更多还原

【Abstract】 Analysis is made of the source of gas emission at the heading face in seam 6-1 of Xinji No.1 Coal Mine.According to the characteristics of gas emission in this case,a comprehensive control approach including increase of air quantity,standing shot firing and presplitting blasting is applied with a good result更多还原