摘要
针对在复杂松软煤层中施工顺煤层防突长钻孔较难的现状，祁南矿采用了CMS1—6200／80型煤矿用深孔钻车进行了螺旋加压风排粉钻进工艺技术试验，钻孔施工的平均孔深达到了142．7m，瓦斯抽放体积分数达NT30％～42％。
Based on the condition that it is difficult to drill hole along the coal bed in complex soft coal seam, Qinan Mine carried out the test of excluding dust by spiralling and wind pressed,using CMS1-6200/80 deep-hole drilling vehicle. With this technology, Drilling achieved an average hole depth of 142.7m, the concentration of gas drainage reached 30%~ 40%.
出处
《煤炭技术》
CAS
北大核心
2011年第1期79-81,共3页
Coal Technology
关键词
松软煤层
煤与瓦斯突出
螺旋加压风
soft coal seam
coal and gas outburst
spiralling and wind pressed
