偏“W”型通风工作面采空区自燃三带分布规律研究

Study on the distribution laws of spontaneous combustion three zone of gob in working face using partial "W" ventilation

近年来,偏"W"型通风在高瓦斯和突出矿井回采工作面的布置中得到广泛应用,然而由于通风方式的改变,采空区自燃三带的特征也与普通"U"型通风工作面有了很大差别,因此研究偏"W"型通风工作面采空区自燃三带分布规律具有很大意义。本文以段王煤矿150405回采工作面为研究背景,通过数值模拟与现场实测相结合的方法,得到了该工作面的自燃三带的分布规律,为工作面预防采空区自然发火具有重要意义。

In recent years, partial W-type ventilation system is widely used in mining working face in the gas highly gas mines .However, due to changes in ventilation mode, the characteristics goal spontaneous combustion three zones is different between the partial W-type ventilation system and the U-type ventilation. So it is important to research the law of goal spontaneous combustion three zones. This paper based on 150405 working face of duanwang coal mine, through numerical simulation and field measurement, get the law of goaf spontaneous combustion three zones of this working face. It is important to prevent Working face goal spontaneous combustion.