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为系统分析塔罗金矿露天边坡稳定性状况,选取具有代表性的现状边坡剖面,运用极限平衡法和强度折减法分别进行计算,得出剖面的平均安全系数为1.458;建立剖面的三维模型,运用有限差分软件分析边坡的塑性区和位移场变化,结果显示边坡的塑性区主要分布于各台阶的坡面位置,塑性区面积较小,未贯穿坡体,也未产生潜在滑移面;布置在边坡典型位置的监测点位移量较小,边坡产生整体滑移的可能性不大。安全系数和数值模拟计算结果与现场实际观测情况一致。
In order to systematically analyze the stability condition of open slope in Taruo gold mine, the representative current slope profile is selected and calculated by limit equilibrium method and strength reduction method respectively. The average safety factor of profile is 1.458. Model, the finite difference software is used to analyze the plastic zone and the displacement field of the slope. The results show that the plastic zone of the slope is mainly distributed on the slope of each step, and the plastic zone has a small area and does not penetrate the slope and does not cause potential slip The displacement of the monitoring points arranged in the typical position of the slope is small, and it is not possible for the slope to produce overall slippage. The safety factor and numerical simulation result are consistent with the actual observation in the field.