Abstract:Exploiting the face under the finished open-pit area always has potential risks of unsafety. It can be the risk of water flowing into the face or the occurrence of water cracking and mud, which is a very dangerous phenomenon in mining. The larger the dimension of the influence area of exploiting the face is, the greater the risk of water problems entering the face is. Through the assessment and analysis of the coal exploitation at the synchronized mechanized face of Seam 11 located under the open pits that hav… Show more
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