中文摘要：

通过实测3号煤层的原始瓦斯含量、气体组分、采落煤残存瓦斯含量、工业分析等瓦斯基本参数,结合煤层赋存条件、开采技术条件和设计开采方案,在研究大西煤矿3号煤层瓦斯含量分布规律的基础上,运用分源预测法预测了达产后不同时期的矿井瓦斯涌出量,并确定了相应的瓦斯涌出等级。

英文摘要：

Through the measurement of No.3 coal seam gas content,the original gas composition,mining coal gas content,fall the remaining industrial analysis gas basic parameters,and combining with coal seam mining technology conditions,occurrence condition and design of mining method,in the research of No.3 coal seam coal mine onishi gas content distribution,and on the basis of the forecast method of using separate source predicted the postpartum period of different of mine gas emission,and determine the corresponding gas emission levels.