【摘要】 为了进一步减少由于煤矿开采而引发的冒顶安全事故,对煤矿开采过程中顶板的稳定性进行分析,建立了基于突变理论的特厚急倾斜煤层水平分段开采条件下采空区顶板稳定性分析模型。最后结合具体案例对模型进行了分析和验证,并求出顶板的压缩弹性能,得到顶板冒落破坏计算结果与现场实际情况相吻合,说明模型适用于采空区顶板稳定性的分析。更多还原

【Abstract】 In order to further reduce the roof safety accidents caused by coal mining,the stability analysis of roof in the process of coal mining is analyzed,and the roof stability analysis model of goaf under the condition of horizontal section mining in extra-thick steeply inclined coal seam is established based on catastrophe theory. Finally the model is analyzed and validated by a specific engineering example,and the compression elastic energy of the roof is obtained,the calculation results are consistent with the engineering actual situation,it shows that the model is suitable for analysis of roof stability of mined-out area.更多还原