设计并完成比例１∶１００的小型振动台模型试验，坡面角度为３５°、４５°、５５°，在满足相似律的条件下，输入不同频率Ｘ，Ｚ双向正弦波，研究碎石土斜坡动力响应规律和变形破坏特征。结果表明高程对地震波具有放大作用；水平向加速度峰值放大效应强于竖直向；随着坡面角度增大，水平向或竖直向加速度峰值高程放大效应先增强后减弱，４５°时最显著；坡体下部水平向加速度峰值随高程缓慢上升，坡体上部快速上升；竖直加速度峰值在整个高程内上升，无明显分界；随频率增大，坡体内同一高程水平向加速度峰值变大，竖直向加速度峰值先增大后减小，２５Ｈｚ时高程放大效果最明显。ＰＩＶ结果表明坡度为４５°，频率为２５Ｈｚ时，坡肩水平向运动最剧烈。碎石土斜坡易发生坡肩破坏。

A small-scale shaking table test for gravel soilslope with the geometric scale of 1:100 and inclination angles of 35°,45°and 55°was designed. A series of tests were performed under the excitation of sine waves with different frequencies in X and Z directions. The laws of dynamic responses and the characteristics ofdeformation and failure for gravel soil slope were studied. Results showed that the elevation has an amplification effect on seismic waves; the amplification ofhorizontal peak acceleration is stronger than that of vertical peak acceleration: with increase in inclination angle, the peaks of horizontal and vertical accelerations increase firstly and then decrease, the most obvious amplification occurs during the inclination angle of 45°; with increase in elevation, the peak of horizontal acceleration increases slowly at the lower part of the slope, but it increases quickly at the upper part; the peak of vertical acceleration increases with in the whole elevation; with increase in frequency, the peak of horizontal acceleration at the same elevation level increases, and the peak of vertical acceleration increases firstly and then decreases; the most obvious elevation's amplification effect occurs when the frequency is 25 Hz. The PIV analysis showed that the horizontal movement ofslope shoulder is the most obvious during the inclination 45°and the frequency is 25 Hz. It was shown that the gravel soil slope is easy to have shoulder failures under earthquake action.