突出煤层打深孔技术

Deep Hole Drilling Technology in Outburst Coal Seam

焦作矿区单一厚煤层开采区域瓦斯治理的措施主要是预抽煤层瓦斯,提高抽采效果的关键是打孔。长期以来,由于钻机能力小,施工技术落后,钻孔深度一直制约瓦斯抽采效果。针对钻孔施工难的问题,对深钻孔施工技术进行试验研究,彻底消除了钻孔深度制约矿井区域瓦斯治理的瓶颈。

The main measures of gas control in single-thick coal seam mining area in Jiaozuo are pre-drainage,and the key work to enhance effect of drainage is drilling.For a long time,the effect of gas drainage have been restricted by drilling depth due to the small capacity drilling and the backward construction technology.Pointing to the problems of construction difficult in drilling holes,experimental research on deep hole drilling technology was made,which completely eliminated the constraints of drilling depth on gas control of mine.