影响未开采煤层瓦斯含量的地质因素定量分析——以铁法盆地晓南矿14^#煤层为例

Quantificational Analysis of the Geologic Agent Affecting Gas Content of Coal Seam Unmined:Taking the 14# Coal Seam of Xiaonan Coal Mine of Tiefa Basin as An Example

未开采煤层瓦斯含量及影响因素研究,是煤矿安全生产的重要基础研究工作,以铁法盆地晓南矿未开采的14#煤层为例,系统分析了影响瓦斯含量的地质因素。采用灰色关联方法,对各影响因素进行研究,建立了灰色关联模型,并计算出各影响因素的关联度。研究结果表明:影响晓南矿14#煤层瓦斯含量的主要地质因素有煤的变质程度、地质构造、煤层厚度及煤层埋深等。并用多元回归对其进行了瓦斯含量预测。这为未开采煤层瓦斯含量的研究提供了科学方法,并为该煤矿的安全开采提供了基础资料。

The study of gas content and influencing factor research. We take the 14^#coal seam of Xiaonan coal mine agent systematically which influences the gas content. We of the coal seam unmined is an important fundamental of Tiefa basin as an example and analyse the geologic make a study of each influencing factor, establish the gray connection model and calculate the degree of association of the influencing factors by using the gray connection method. The result indicates that the main geologic agent which influences the gas content of the 14^#coal seam of Xiaonan coal mine is the grade of coal metamorphism, the geologic structure, the coal seam thickness, and the depth of the coal seam. We also forecast the gas content by multiple regression. This study provides a scientific method about studying the gas content of the coal seam unmined and provides the basic data about the safe mining.