随着定向钻机在晋煤集团的成功应用，定向钻孔抽采瓦斯已成为区域防突措施的常规手段。为验证该措施的效果，首先采用预抽前的瓦斯含量及抽排瓦斯量等参数，间接计算煤层残余瓦斯含量进行预评价，然后将定向钻孔预抽控制区域划分为若干个60~80 m小区域，采用直接测定煤层残余瓦斯含量指标对小区域进行措施效果检验。通过在寺河矿西井区的现场试验，安全完成了W1302工作面的布置。%With successful application of the directional drilling machine in Jincheng Anthracite Mining Group, the gas drainage by directional boreholes has become a routine measure for regional outburst prevention. In order to verify the effect of this measure, pre-evaluation was first made with the residual gas amount which was indirectly calculated by the gas content before pre-drainage and the drained gas amount, then the gas pre-drainage control region by directional boreholes was divided into several small areas of 60m~80m, and finally, the effect test of the measure in the small area was made by directly measuring the residual gas content of coal seams. Through the site test in Sihe Mine, the arrangement of W1302 face was safely finished.
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