腾晖煤业2-105工作面采空区瓦斯运移规律研究

Research on gas migration law in goaf of 2-105 working face in Tenghui coal industry

本文应用数值模拟方法确定钻孔和工作面之间距离与上隅角瓦斯浓度的关系,并对单孔、双孔单抽采系统、双孔双抽采系统的抽采效果进行对比分析,从而掌握大直径钻孔最优化布置参数与布置方式,形成了一套适合于腾晖煤业及相似矿井的大直径钻孔抽采的施工参数。

In this paper,the numerical simulation method is used to determine the relationship between gas concentration in the upper corner and the distance of the drill hole and the working face,and the drainage effects of single hole,double hole single drainage system and double hole double drainage system are compared and analyzed,so as to master the optimal layout parameters and layout mode of large diameter borehole,and form a set of construction parameters suitable for large diameter borehole drainage in Tenghui coal industry and similar mines.