论文部分内容阅读
以阳泉三矿K8206大采长综放面的具体条件为基础,建立数值分析模型,并运用FLU-ENT软件对其采空区的瓦斯运移规律进行模拟。模拟结果表明,采空区的瓦斯浓度分布呈现“O”型圈的特征;在走向方向上,从工作面到切眼,在倾斜方向上,从进风隅角到回风隅角,在竖直方向上,从采空区底板到采空区上部,瓦斯浓度都呈逐渐升高的趋势。
Based on the specific conditions of the K8206 long and fully mechanized top coal caving face in Yangquan No.3 Mine, a numerical analysis model was established and the gas migration rules in the goaf were simulated by using FLU-ENT software. The simulation results show that the gas concentration distribution in the goaf presents the characteristic of “O” ring. From the working face to the cut-out, in the inclining direction, from the inlet to the return air corner, In the vertical direction, the gas concentration gradually increases from the bottom of the goaf to the upper part of the goaf.