中文摘要：

山西晋城矿区主采3#煤层，一般为大采高高强度回采，由此造成工作面瓦斯涌出量大、瓦斯治理压力大等问题。因此，利用采动卸压作用和采空区瓦斯抽采的运移规律，在成庄煤矿施工了采动区地面抽采试验井抽采本煤层采动影响区和采空区煤层气，并运用地面井逐级优化设计方法对试验井的布井位置、井型结构进行了优化。抽采试验结果表明：采空区瓦斯抽采浓度高达50%以上，有效地降低了工作面瓦斯治理压力，试验效果良好。

英文摘要：

No. 3 coal seam is the major excavating seam in Shanxi Jincheng Coal Mining Area and is extracted with large mining height and high strength, which often caused a large amount of methane emitted from the working face and led to the gas under difficult control. For this reason, the surface wells were drilled above the mining area of Chengzhuang Mine to drain the coal-bed methane from the mining influence area and gob area based on the mining stress relief action and the methane emission rule in the gob area. In addition, the position and structure of the test wells were optimized by using the step-by-step optimization design method. The test results showed that the methane drainage concentration from the gob area was more than 50%, this thus reduced the difficulty of methane control in the working face, the test effect was better.