综放工作面高抽巷抽放条件下采空区漏风规律研究

Study on Air Leakage Law of Mechanized Caving Face in Drainage Conditions of High Gas-drainage Roadway

高抽巷在解决易自燃煤层综放工作面瓦斯超限问题的同时,又加剧了采空区漏风及其自燃危险性。为了使工作面采空区防火措施更具有针对性,通过现场实测,研究分析了高抽巷抽放条件下工作面采空区漏风规律,对采空区的自燃危险区域分析、采空区有针对性的控风防火措施的制定具有重要的意义。

The high gas- drainage roadway increases air leakage and spontaneous combustion risk of mined-out area,when it effectively controls the gas overrun problem of fully-mechanized sublevel caving mining working face of easy spontaneous combustion coal seam.In order to make the working face goaf fire prevention measures more targeted, based on the underground in-situ test, the air leakage law of fullymechanized working face goaf under high alley pumping drainage conditions is studied, which is of great significance to analysis of spontaneous combustion dangerous area and development of targeted fire prevention by control the wind.