摘要
为了解决高瓦斯矿井综采工作面上隅角瓦斯积聚的问题,通过采用高位瓦斯钻孔配合上隅角埋管抽放方法进行综采工作面的瓦斯抽放,结果发现:瓦斯抽放率由在上隅角单纯埋管抽放时的53%提高到71%,确定了高位瓦斯钻孔配合上隅角埋管抽放方法是解决上隅角瓦斯积聚的有效手段,综采面产量提高了1200t/d。
In order to solve the gas accumulation problems at the upper corner of the fully mechanized coal mining face in high gassy mine, the high level borehole drilling with the pipeline gas drainage method at the upper comer were applied to the gas drainage of the fully mechanized coal mining face. The gas drainage rate was improved from 53% with the simple pipeline drainage method at the upper corner to 71%, so the high level borehole drilling with upper corner pipeline gas drainage method was confirmed as the effective means to solve the gas accumulation at the upper corner. The coal production of the fully mechanized coal mining face was increased by 1 200 t/d.
出处
《煤炭科学技术》
CAS
北大核心
2010年第2期46-49,共4页
Coal Science and Technology
关键词
上隅角
瓦斯积聚
高位钻孔
抽放率
upper comer
gas accumulation
high level borehole drilling
drainage rate
