瓦斯抽放条件下采空区漏风供氧规律与煤自燃防治技术

摘要

In order to solve the problem of coal spontaneous combustion during gas drainage, No.2421 fully mechanized working face in Baijigou Coal Mine was taken as a study object.Based on the numerical simulation,the air leakage field and oxygen concentration distribution law in goaf were researched.Combined with the underground actual situation,the prevention and con-trol technology was determined for coal spontaneous combustion during the gas drainage.%为解决瓦斯抽放条件下煤自燃问题，以白芨沟矿2421综放工作面为研究对象，基于数值模拟方法研究了瓦斯抽放条件下采空区内的漏风场与氧气浓度分布规律，结合现场情况制定出高瓦斯矿抽放条件下采空区煤自燃防治技术方案。