There are statistics show that the roof accidents accounted for the proportion of all accidents as high as 7 into left and right sides,visible working face roof accident is concerned the coal mine production safety and an important part of people life security,we need to correctly understand various reasons of roof accidents,and to strengthen the prevention of roof accidents.%数据统计显示,工作面顶板事故占所有事故的7成左右,可见工作面顶板事故是关乎到煤矿生产安全的最重要一环,需要正确认识各种顶板事故发生的原因,有针对性的加强工作面顶板事故的预防。
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