【摘要】 根据贵州的地形特点、煤层的赋存状况,结合盘江矿区掘进巷道瓦斯涌出的特点,分析了高原地区大气压力的变化对掘进巷道瓦斯涌出的影响。并提出了如何防止由于大气压力的变化而引起的掘进巷道瓦斯事故,合理利用大气压力的变化规律为矿山生产服务。更多还原

【Abstract】 That the changes of gas from the being excavated roadway owing to the variety of the atmospheric pressure is analyzed on the plateau region,combing to the geography characteristics of Guizhou,the conditions of the coal seam endows and the characteristics that gas gushes into the roadway in Panjiang mineral District.Some measures that gas accidents should be prevented because of the variety of the atmospheric pressure are put forward in being excavated roadway,and the regulation of the variety of the atmospheric pressure may be utilized in mineral District.更多还原