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以曙光矿1212运输巷冒顶事故为工程背景,分析了冒顶事故发生的原因,认为地质构造是巷道冒顶的重要影响因素,在巷道掘进过程中,地质构造带的存在,尤其是断层的出现,会使地层结构发生大的变化,容易出现顶板事故;运用FLAC3D数值模拟软件对优化方案模拟进行了分析,认为保证顶板的整体性有利于顶板的稳定,提高顶板的支护强度,能有效控制顶底板及两帮移近量。
Taking the accident of roof fall of 1212 transport lane in Shuguang Mine as the engineering background, the reason of roof fall accident is analyzed. It is considered that the geological structure is the important influencing factor of roof fall. During the tunneling process, the existence of geological structure belt, especially the emergence of faults, Make the stratum structure change greatly, prone to roof accident; use FLAC3D numerical simulation software to optimize the program simulation analysis, that ensure the integrity of the roof is conducive to roof stability, improve roof support strength, can effectively control the top floor And two closer to move closer.