【摘要】 分析了马家沟矿九西二石门附近9-2煤层瓦斯赋存条件,找出了该区域瓦斯赋存特征,并解释了该区域瓦斯压力为何偏高,从理论上计算出该区域瓦斯释放量确实偏小。更多还原

【Abstract】 This paper made an analysis on the occurrence conditions of No.9-2 coal seam near western No.2 crosscut on level 9 of Majiagou Mine, found out the gas occurrence characteristics in this district and gave an explanation why gas pressure in this district is on the high side. Theoretical calculation showed that the gas emission in this district is really on the low side.更多还原