偏W工作面采空区氧气、甲烷气体组分的分布规律探究

Exploration on Law of Distribution of Oxygen and Methane in Goaf of Partial W-Type Working Face

为了得到采空区内部气体组分的分布规律,基于气体浓度场数值模拟的理论基础,运用CFD仿真方法,对固定风量下段王矿偏W型工作面采空区内部浓度场的分布进行建模和仿真。然后,对比现场实测数据与仿真结果,发现二者在变化趋势上是一致的,验证了模型的合理性。在此基础上,对采空区内部气体组分的分布规律进行探究,获得CH_4和O_2的浓度分布规律,为作业环境中瓦斯与自然灾害的防治提供依据和指导。

In order to obtain the law of air distribution in the goal, according to the thereritical basis of the numerical simula- tion, the CFD method is used to build numerical model and numerical simulation. By contrasting the data obtained from real measurement and numerical simulation, it presents the same trendency which turns out that the model is reasonable. On the basis of reasonable model, the law of air distribution in the goal is further explored. The distribution law of air in the goal plays a critical role in preventing distatering in the working place.