冒顶片帮事故是地下矿山危害最为严重的事故，矿山地压管理是地下开采矿山安全管理的重要任务。
Roof fall accident is one kind of dangerous accidents happened at underground mines and underground pressure management is the main task of mining safety management.
目前，我国矿山在极近距煤层开采过程中，下部煤层开采时，顶板遭受损伤，工作面及巷道顶板易于出现冒顶、漏顶现象，严重时造成支架埋压；
Today during the mining process in contiguous seams, there are many factors leading to hidden danger, such as: the top board being tortured during the exploitation of the lower seam;
目前，我国矿山在极近距煤层开采过程中，下部煤层开采时，顶板遭受损伤，工作面及巷道顶板易于出现冒顶、漏顶现象，严重时造成支架埋压；
Today during the mining process in contiguous seams, there are many factors leading to hidden danger, such as: the top board being tortured during the exploitation of the lower seam;
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