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(一)几个案例1.世界上第一次有记载的突出1834年3月22日,法国鲁阿尔煤田伊萨克矿急倾斜厚煤层平巷掘进工作面发生了突出。支架工在架设支护时,发现工作面煤壁外移,3个工人赶忙撤离,巷道中瞬时充满煤粉13米长,煤尘弥漫,1人被煤流埋没死亡,1人窒息死亡,只有1人幸免于难。煤突出后迎头支架倾倒,煤粉散落长度15米,无瓦斯浓度记录。
(A) Several cases 1. For the first time in the world, prominent prominences On March 22, 1834, the excavation face of the steep thick coal seam at Issac Coal Mine, Ru’ar Coalfield, France, prominently occurred. Support workers in the erection of the support, found that the coal face moving outward, three workers quickly evacuated, the roadway instantaneous full of coal 13 meters long, filled with coal dust, one was buried by the death of coal, one died of suffocation, and only One person survived. After the coal was put out, the headstock was dumped and the pulverized coal was scattered 15 meters in length with no record of gas concentration.