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在现场采煤工作中,由于工作面的不断向前推进,顶板暴露面积也随着加大,致使顶板经常出现弯曲、下沉、裂隙、掉渣等,甚至造成垮面、生产停顿及人身伤亡的严重事故。统计资料表明,我国煤矿顶板事故占很大的比重。因此,分析煤矿掘进工作面冒顶事故原因,搞好冒顶事故预防,对保护煤矿职工的生命和安全至关重要。针对煤矿掘进工作面经常发生的冒顶现象,找出它的原因并有效采取措施加以预防,减少由于冒顶引起的事故发生,从而保证了煤矿生产安全,提高了生产效益。
In the on-site coal mining work, due to the continuous advancement of the working face, the exposed area of the roof also increased, causing frequent bending, sinking, fissuring and dross removal of the roof, and even caused collapse, production stoppages and personal injuries Serious accident. Statistics show that China’s coal mine roof accidents account for a large proportion. Therefore, it is very important to analyze the cause of roof fall accident in coal tunneling face and prevent the accident of roof fall, which is very important to protect the life and safety of coal mine workers. Aiming at the phenomenon of roof falling frequently occurring in coal mining face, find out the reason and take effective measures to prevent it, reduce the accidents caused by roof fall, thus ensuring the safety of coal mine production and improving the production efficiency.