【摘要】 为了在进行露天边坡动力稳定性分析时，准确计算拟静力法中的等效静荷载，采用考虑振速高程放大效应的经验拟合公式进行等效静荷载计算，探索高程放大效应对边坡动力稳定性的影响。以某露天矿山为背景，使用ANSYS/LS-DYNA建立数值计算模型，分别对使用萨道夫斯基公式和考虑高程效应的经验公式下的振速预测值、等效静荷载和边坡稳定性进行分析。研究结果表明，多级台阶边坡存在振速高程放大效应，且高程效应出现在靠近坡面的顶缘位置；通过考虑高程效应的经验公式预测的质点峰值振速相比于萨道夫斯基公式更加合理，并且能较准确地反映高程放大效应。通过考虑高程效应的经验公式计算所得安全系数大于萨道夫斯基公式所得值，但较后者更加精确，计算结果更加可靠。研究可增强边坡稳定性评价结果的可靠性，为边坡岩体动力稳定性评价提供一种新方法。更多还原

【Abstract】 To accurately calculate the equivalent static load of the imitate statics method in the analysis of dynamic stability of the open-pit slope, when analyzing the dynamic stability of open-pit slope.In this paper, the empirical fitting formula of the amplification effect to vibrating velocity elevation was used to calculate the equivalent static load, and explore the influence of the elevation amplification effect on the dynamic stability of the slope.On the background of a certain open-pit mine, used the ANSYS/LS-DYNA to establish the numerical calculation model, the Predicted value of vibration velocity、the equivalent static loads and the slope stability were to be analyzed with the Sadov′s formula and the empirical formula under the elevation effect.The result of the research shows that the elevation amplification effect of vibration velocity has existed in multi-stage slopes and the elevation effect occurs near the top edge of the slope, using the empirical formula under elevation effect to forecast the particle peak velocity is more rational than using the Sadov′s formula, and the elevation amplification effect can be accurately reflected.Calculating the safety factor with the empirical formula under the elevation effect is bigger than the value of the Sadov′s formula, but the latter is more accurate and more reliable.The research in this paper can greatly enhance the reliability of slope stability evaluation results and provide a new method for dynamic stability evaluation of slope rock mass.更多还原