近距离高瓦斯突出煤层群煤巷掘进工作面防突技术探讨

Inquiring into Outburst Prevention Techniques Used in Heading Face in Group of Contiguous High-gassy Outburst Seams

掘进工作面瓦斯治理是煤矿瓦斯综合防治的一项重要内容。分析了掘进工作面煤体应力状态,并结合使用圆钻杆向乌兰煤矿突出煤层施工钻孔预抽煤层瓦斯,有效地解决了煤与瓦斯突出问题,确保了掘进安全。该技术对高瓦斯突出煤层群掘进工作面的瓦斯防治具有一定的实践指导作用。

The gas control in heading face is an important content of the complex gas control in a coal mine.Analysis was made on the stress state of coal body in the heading face;round drill stems were used to drill holes into the outburst seam for gas pre-drainage,which effectively solved the problem of coal and gas outburst and guaranteed safe drivage.This technology has a guiding function for the gas prevention and control in the heading face in group of high-gassy outburst seams.