摘要
山西新元煤炭有限公司韩庄分区开采的3号煤层为煤与瓦斯突出煤层。文章针对韩庄分区3号煤层产量、瓦斯涌出规律和巷道布置的实际情况,结合该矿井一期瓦斯抽放经验,通过对回采面和邻近层采用高密度、大孔径顺层抽放钻孔和大孔径倾斜成对钻孔,掘进面和采空区通过区域性预抽和全封闭抽放的综合瓦斯抽放方法,取得了较好的瓦斯抽放效果,为保证煤与瓦斯突出矿井安全开采创造了有利条件。
The No.3 Coal Mining Seam is coal and gas outburst Coal Seam of Hanzhuang District of Shanxi Xinyuan Coal Co.,Ltd. Aiming at the actual situation of the production and gas emission law and roadway layout on the No. 3 Coal Seam in Hanzhuang District,combined with the preceding gas pumping experience,through the coal face and the adjacent layer with high density,large aperture bedding drainage borehole and large aperture paired borehole inclinometer,heading face and goaf through regional pre pumping and closed drainage,the comprehensive gas drainage method achieved better effect for gas drainage,and created favorable conditions for coal and gas outburst mines mining safety.
出处
《煤》
2016年第10期3-5,共3页
Coal
关键词
煤与瓦斯突出
瓦斯抽放
高密度
大孔径
coal and gas outburst
gas drainage
high density
large aperture
