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我矿邻近煤层瓦斯抽放情况。已在《煤矿安全》1976年第4期作了简要介绍。由于当时抽放时间短,作为上解放层开采的1215工作面投产也只有三个多月,因此对抽放效果和有关参数不可能全面分析。至今年元月止,瓦斯抽放已连续十六个月了,作为上解放层开采的1215工作面现已推过第一组抽放钻孔达200米。为了进一步巩固提高瓦斯抽放,达到消除井下瓦斯的危害,对过去一年多的瓦斯抽放工作,进行了初步总结,并提出我们的一些肤浅认识如下。
Gas drainage near coal seam in mine. Has been in “Coal Mine Safety” in 1976 the fourth made a brief introduction. Due to the short drainage time at that time, the 1215 working face that was exploited as the upper liberation floor was only put into operation for more than three months. Therefore, it is impossible to conduct a comprehensive analysis on the drainage effect and the related parameters. As of January this year, methane drainage has been continuous for 16 months. As a result, the 1215 face of the upper-liberation coal mine has now pushed through the first set of drainage holes of 200 meters. In order to further consolidate and enhance gas drainage and achieve the goal of eliminating the harm of underground gas, we have made a preliminary summary of the gas drainage work over the past year and put forward some superficial understandings as follows.