Based on the uniaxial compression experiment, this paper used FLAC3D to simulate the regular and single pillar-roof system. With the strength reduction method, and according to the different values of the reduction factors, the maximum principal stress cloud image, the plastic zone distribution and the displacement cloud image are analyzed. The calculation of reliability is on the basis of the strength reduction, and according to the calculation result of reliability and reduction coefficient calculation, the pillar stability is analyzed.%本文在单轴压缩实验的基础上,利用FLAC3D对规则的单一矿柱-顶板系统进行模拟.用强度折减法,根据折减系数不同的取值对最大主应力云图、塑性区分布、位移云图进行分析.在强度折减法的基础上进行可靠度计算,根据可靠度计算结果和折减系数法计算结果,对矿柱稳定性进行分析.
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