摘要
以山西阳城阳泰集团伏岩煤业3号煤层为研究对象,通过瓦斯流量法对其抽放半径进行了考察,并以瓦斯含量的测定来评价分析钻孔抽采效果的可靠性;结果表明,该煤层抽采钻孔的有效半径为2 m,在抽采半径覆盖范围内煤层的瓦斯含量明显下降,测定结果为3号煤层的瓦斯抽采设计提供了重要的参考。
No.3 coal seam of Fuyan Coal Industry as the research object, gas flow method was used to ~xplore the drainage radius and gas content measurement was used to evaluate the stability of borehole drainage. The finding showed that the effective radius the borehole drainage was 2 meters and the gas content in the radius coverage dropped sharply. The results could be important references for the gas drainage design in No.3 coal seam.
出处
《山西煤炭》
2013年第7期64-65,75,共3页
Shanxi Coal
