突出煤层长距离定向钻孔瓦斯区域消突技术研究  

Study on Gas Outburst Elimination Technology of Long Distance Directional Drilling in Outburst Coal Seam

作　　者：申宇鹏 Shen Yupeng(Zhenchengdi Mine,Xishan Coal Electricity Group Co.,Ltd.,Taiyuan Shanxi 030053)

机构地区：[1]西山煤电集团有限责任公司镇城底矿,山西太原030053

出　　处：《山西化工》2022年第8期96-97,107,共3页Shanxi Chemical Industry

摘　　要：为解决突出煤层群瓦斯抽采消突周期长,煤层松软难护孔,大工作面难消空白带等问题。以镇城底矿28620工作面两侧巷道为例,针对普通钻机在采面逆断层消突钻孔施工中不能全覆盖以及不能更好地抽采断层区域等问题,设计了采用定向钻机来施工采面逆断层消突钻孔的技术。实践效果良好,降低瓦斯浓度和压力,合理优化钻孔消突范围,提高了钻孔的有效抽采效果,保证矿井的生产接替。In order to solve the problems such as the long period of gas drainage and outburst elimination in outburst coal seams,the soft coal seams are difficult to protect holes,and the large working faces are difficult to eliminate empty and white belts.Taking the roadways on both sides of the 28620 working face in Zhenchengdi Mine as an example,aiming at the problems that ordinary drilling machines can not fully cover the reverse fault outburst elimination drilling in the mining face and can not better extract the fault area,the technology of using directional drilling machines to construct the reverse fault outburst elimination drilling in the mining face is designed.The practice effect is good,reducing the gas concentration and pressure,reasonably optimizing the borehole outburst elimination range,improving the effective drainage effect of the borehole,and ensuring the production replacement of the mine.

关 键 词：煤与瓦斯突出 数值模拟 定向钻孔 预抽瓦斯 区域消突 

分 类 号：TD712[矿业工程—矿井通风与安全]