红阳三矿深部瓦斯赋存规律及突出危险性评估

Gas Occurrence Regularity and Gas Outburst Risk Evaluation of Deep Coal Seam in Hongyang-third Mine

以红阳三矿瓦斯地质勘探及煤层气试验井资料为基础,分析了该矿800 m以深区域瓦斯生储赋存条件,运用层次分析-模糊数学综合评判法评估了深部煤层的瓦斯突出危险性。结果表明:该矿高变质程度、高镜质组含量的煤层利于瓦斯生成,大埋深、厚层低透气性的盖层利于煤层瓦斯保存。

Based on the data of the coalbed methane drainage test well and exploration holes in the Hongyang-third Mine,studied the gas occurrence characteristic of coal seams which are below 800 meters from ground. The gas outburst risk of the major coal seams was evaluated with the analytic hierarchy process-fuzzy mathematics comprehensive evaluation method. The results showed that the high coal metamorphic degree and vitrinite are conducive to gas generation, the large buried depth and the thicker cover layer with low permeability are good for saving gas.