高位钻孔瓦斯抽放效果考察与分析

Inspection and analysis on Gas Drainage Effect of High Drilling

高位钻孔瓦斯抽放方法首次在淮北矿业集团公司童亭煤矿8煤层回采工作面应用,在没有实际可借鉴钻孔布置参数的情况下,对高位钻孔抽放效果进行了考察与分析,找出了该矿8煤层回采工作面高位钻场和钻孔布置的具体参数,为8煤层回采工作面治理瓦斯实现高产高效奠定了基础。

Gas drainage method with high drilling was first used at the face in NO.8 coal seam in Tongtion Coal Mine in Huaibei Mining Industry Group Comp. In the situation of having no drilling arrangement parameters of the paratical reference, the drainage effects of high drilling were inspected and analyzed.The high drilling freld at the face in NO.8 coal seam, and the concrete parameters of drilling arrangement were found out.The foundation was laid for realizing high production and high efficiency in the face gas management in NO.8 coal seam.