摘要
通过对已试抽工作面的瓦斯抽放效果分析 ,对抽放钻孔直径、钻孔间距、抽放负压、封孔深度等直接影响瓦斯抽放率的因素进行了研究改进 .探寻了戊组煤层钻孔瓦斯涌出规律 ,并提出了适合戊组煤层的合理瓦斯抽放参数 .
On the basis of analysis of gas suction efficiency in working face which has been drained, the factors including bore diameter, the space between bores, the negative pressure of suction, the depth of stemming and so on, which directly influenced the low of gas draubaqe under suction efficiency have been studied and optimized. The rule of gas emission from bores in Wu class coal seam is discussed and the parameters adapting to the reasonable suction of gas in Wu class coal seam are presented.
出处
《焦作工学院学报》
2000年第3期161-164,共4页
Journal of Jiaozuo Institute of Technology(Natural Science)
基金
平顶山一矿高产高效工作面瓦斯抽放研究
关键词
高产
高效
回采工作面
瓦斯抽放率
high production and high efficiency
working face
gas drainage under suction
