【摘要】 结合某矿的工程实际情况,利用有限元数值模拟软件3D-Sigma建立了三维数值模型,对二期矿柱回采进行了数值模拟,通过对回采过程中矿柱及采空区的安全率、位移、应力进行分析,论证了该矿矿柱回采的可行性,揭示了矿柱回采的整体顺序及回采过程中失稳破坏的关键部位,模拟结果对矿山安全回收矿柱具有重要的指导意义。更多还原

【Abstract】 A three-dimension model was established for a underground mine by using Using 3D-Sigma software to analyze stability of pillar recovery,displacement and stress of mined area and approve the feasibilities of pillar recovery,showing the overall recovery sequence and rock failure key areas.更多还原