中文摘要：

在连续降雨并输入水平、竖直方向地震波的工况下,模拟尾矿坝坝体的动力反应,分析坝基覆盖层和尾矿砂层的液化情况,提出一种考虑液化区域影响的尾矿坝动力稳定性计算方法,并将此方法用于海口镇尾矿坝下游坝坡的动力稳定性分析中。结果显示：连续降雨时的动力稳定安全系数比无降雨时低0.07左右,考虑液化区域的动力稳定安全系数比不考虑液化区域的小0.10左右。

英文摘要：

By simulating a tailings dam under the condition of continuous rainfall and taking into account seismic waves in horizontal and vertical directions,the dynamic responses of the tailings dam were analyzed and the liquefaction of the dam foundation layers and tailing slag were evaluated.A dynamic stability analysis method for the tailings dam,which considers the effect of liquefaction,was applied to the dynamic stability analysis of the downstream slope of the tailings dam at Haikou Town.The results show that the safety factor decreased by about 0.07 in the case of continuous rainfall compared with that without rainfall,and the safety factor,when considering the liquefaction of the dam foundation,was 0.10 lower than that without considering the liquefaction.