常村煤矿26采区3号煤层瓦斯地质规律分析及区域危险性研究

Gas geological analysis and regional hazard analysis of No.3 coal seam in No.26 mining area of Changcun Mine

基于瓦斯赋存规律及常村煤矿地质构造特征的研究,定性分析了常村煤矿煤层埋深、地质构造、顶底板岩性以及水文地质等瓦斯赋存规律影响因素,并结合矿井实测瓦斯涌出量,预测了26采区煤与瓦斯区域突出危险性。结果表明,煤层埋深与瓦斯含量呈正相关关系,且为影响瓦斯含量的主控因素,26采区3号煤层瓦斯类型为中等类型,暂无瓦斯突出危险。

Based on the study of the law of gas occurrence and the geological structure characteristics of Changcun Mine,the influencing factors of coal seam depth,geological structure,lithology of top and bottom slab and hydrogeology were analyzed qualitatively,and the gas was measured in combination with mine.The amount of gushing predicted the outstanding risk of coal and gas in the 26 mining areas.The results showed that the buried depth of coal seam was positively correlated with gas content,and it was the main controlling factor affecting gas content.The gas type of No.3 coal seam in No.26 mining area was medium type,without danger of gas outburst.