【摘要】 本文从理论上分析了矿井发火区封闭后，封闭区发生瓦斯爆炸的原因及影响因素，研究了封闭区瓦斯爆炸各影响因素的变化规律。提出了一些封闭工作面时的防爆措施。更多还原

【Abstract】 This paper giver an analysis of the reasons and influential factors of methane explosions in coal mines af-ter the sealing of the fire zone,studies the law governingthe variation of the influential factors with explosion-preventive measures for some for some of sealed faces proposed.更多还原