Based on some typical examples of gas explosions on the coalface,the basic events resulting in gas explosions are generalized and a fault tree is drawn.

• 根据矿井采煤面瓦斯爆炸的一些典型事例,概括出导致瓦斯爆炸的基本事件,编制了采煤工作面瓦斯爆炸事故树。