陶二矿2煤层瓦斯地质单元划分及赋存特征

摘要

According to the gas geological conditions of No. 2 seam in Tao＇er Mine, the quantification theory was applied to screen the fac- tors affected to the gas content distribution of No. 2 seam in Tao＇er Mine. The factors were the geological structures, roof lithology, mag- matic rock intrusion and buried depth. The linear regression model was applied to predict the gas along strike and tendency distribution law of each unit. No. 2 seam was divided into three gas geological units. Ⅰ unit was gas weathered zone,Ⅱ unit was outburst dangerous zone and Ⅲ unit was outburst dangerous zone in potential.%针对陶二矿2煤层的瓦斯地质条件，借助数量化理论方法筛选出影响陶二矿2煤层瓦斯含量分布的因素为地质构造、顶板岩性、岩浆岩侵入、埋藏深度，采用线性回归模型预测各单元瓦斯沿走向和倾向分布规律，并将2煤层划分为3个瓦斯地质单元：Ⅰ单元为瓦斯风化带，Ⅱ单元为突出危险区，Ⅲ单元为潜在突出危险区。