下霍煤矿矿井瓦斯涌出量预测研究

通过实测下霍煤矿3号煤层的原始瓦斯含量、气体组分等瓦斯基本参数,结合地勘期间的瓦斯含量数据、煤层赋存条件、开采技术条件和设计开采方案,在研究下霍煤矿3号煤层瓦斯含量分布规律的基础上,推测出下霍煤矿井田范围内的3号煤层既有甲烷带,又有瓦斯风化带,采用分源预测法对下霍煤矿一、二采区3号煤层开采时的矿井瓦斯涌出量进行了预测。

Prediction Research of Gas Emission in Xiahuo Coal Mine

Through the measured by the coal mine of No.3 coal seam gas content of the original,gas composition of gas basic parameters,combined with the geological exploration period gas content data,coal seam mining bearing conditions,technical condition and mining scheme design,the study in the coal mine of No.3 coal seam gas content distribution,and on the basis of the coal mine field under that the range of No.3 coal seam with both methane,and the gas weathered zone,the points of the forecast method of source under a coal mine,and two of No.3 coal seam mining area of the mine gas emission was predicted.