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本文阐述了地面钻孔抽放邻近层（含采空区）瓦斯的可行性，并通过合理选择钻孔参数，抽放设备及工艺，对低透气性煤层进行抽放瓦斯，取得了预期效果。
This paper elaborates the feasibility of ground drilling for gas drainage in adjacent layers (including goafs), and achieves the expected results by reasonably selecting the drilling parameters, drainage equipment and techniques to drain methane with low permeability.