高位钻场钻孔瓦斯抽放技术应用与分析

Application and Analysis of High Level Drilling Site Gas Drainage Technology

高位钻场钻孔瓦斯抽放技术实际上是利用顶板钻孔抽放采空区冒落带及裂隙带瓦斯,进而改变采空区流场分布,解决因采空区瓦斯从上隅角一带大量涌出引起的上隅角和回风流瓦斯超限问题。本文以某高突矿戊8煤层为试验对象,制定了合理的高位钻场钻孔抽放瓦斯方案,探讨了其应用效果,为该矿的瓦斯治理提供理论支持和技术保证。

Actually, the high level drilling site gas drainage is that the gasin gob caving zone and fracture zone drainas by roof drilling, and the gob flow field is changed, so the problem of gas exceeding the limit is caused by gob gas emitting from the upper corner. In this paper takes wu8- of high gas outburst seam as test object, a reasonable plan of high level drilling site gas drainage developed, and then the effect of its application is explored. The theoretical support and technical assurance are provided for the gas control of this mine.