摘要
为提高高位钻孔的抽放效果,利用浓度法对漳村煤矿的裂隙带高度进行了现场考察,并根据考察结果对高位钻孔的布置参数进行了优化,并将优化后高位钻孔抽采技术应用于2203工作面。抽采结果表明,优化后高位钻孔抽放措施有效地解决了上隅角瓦斯超限问题。
In order to improve the gas drainage effect of high level boreholes, the height of the fractured zone in Zhangcun coal mine is investigated by concentration method, and the layout parameters of high level borehole have been optimized in accordance with the in- vestigation results. The optimized high level borehole extraction teehnolagy is used in 2203 working face. The extraction results show that the optimized high level borehole drainage measures can effectively solve the problem of gas overrun at upper corner.
出处
《煤矿安全》
CAS
北大核心
2012年第8期128-129,共2页
Safety in Coal Mines
关键词
高位钻孔
参数优化
浓度法
瓦斯抽放
裂隙带
high level borehole
parameters optimization
concentration method
gas drainage
fractured zone
