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分析了回采工作面采空区氧气、瓦斯浓度的分布规律,认为采空区存在着瓦斯燃烧、爆炸的客观条件,依据实验数据论证了采空区岩石摩擦也是引燃引爆采空区瓦斯的一种点火源。通过实例说明了采空区瓦斯爆炸的危害性,并提出解决这一难题的探讨性措施。
Based on the experimental data, it is proved that the rock friction in the goaf is also a kind of gas that ignites the detonated gob area Kind of ignition source. An example is given to illustrate the danger of gas explosion in the goaf and the tentative measures to solve the problem are put forward.