俗话说:日晕而雨,月晕而风。很多事情发生之前都有些征兆,煤矿自然灾害也不例外,尽管井下有些事故来势凶猛,但是总有个演变过程和事故形成的前兆。我们只要留心观察,抓住蛛丝马迹,及早采取有效防范措施,就可以避免一些事故发生和减少一些重大损失。 一听。很多井下事故发生都要发出声音,如煤层与瓦斯突出时,在地压的作用下,伴有放炮似的声响,像闷雷一样,先远 As the saying goes: Drizzle and rain, halo and wind. A lot of things happened before there are some signs of natural disasters in the coal mine is no exception, despite some fierce underground accidents, but there is always a precursor to the evolution and accident. As long as we observe carefully and grasp the clues and take effective precautionary measures as early as possible, we can avoid some accidents and reduce some major losses. Listen. Many underground accidents have to make a sound, such as coal and gas outburst, under the pressure in the ground, accompanied by blasting sound, like bored mine, far and away