影响晓南矿未开采煤层瓦斯赋存的地质因素

The geologic agent affecting the gas occurrence of the coal seam unmined in Xiaonan coal mine

为了解决晓南矿二水平未开采煤层的安全开采问题,以14号煤层为例,系统地分析了影响瓦斯赋存的地质因素.采用灰色关联方法,对各影响因素进行了研究,建立了灰色关联模型,并计算出各项因素的关联度.研究结果表明:影响晓南矿14号煤层瓦斯赋存的主要地质因素为煤的变质程度、地质构造、岩浆岩侵入、煤层厚度及煤层埋深等因素,并用多元回归对其进行了瓦斯含量预测,为二水平煤层的安全开采提供了基础资料.

In order to solve the safe mining question of the coal seam unmined which is in the second level in Xiaonan coal mine, took the No. 14 coal seam as an example and analysed the geologic agent systematically which influence the gas hosting. By using the gray connection method, it made a study of each influencing factor, established the gray connection model and calculated the degree of association of the influencing factors. The result indicates that the main geologic agent which influence the gas hosting of the No. 14 coal seam in Xiaonan coal mine are the grade of coal metamorphism, the geologic structure, magmatite ingress, the coal seam thickness and the buried depth of coal seam, etc, then it forecasts the gas content by multiple regression, it provides the basic data about the safe mining of the coal seam in the second level.