This study presents experimental results from shaking table tests on a reduced-scale geogrid reinforced soil retaining wall (RSRW) to investigate the seismic response of the fundamental frequency, acceleration amplification, face displacement, backfill surface settlement, and reinforcement strain under different peak accelerations and durations. The fundamental frequency is in good agreement with the predicted values. The root mean square (RMS) acceleration amplification factors increase nonlinearly with the wall height and decrease with increasing seismic load, which is not regarded as a constant value. The distributions of the peak displacement are consistent with those of the residual displacement. The combination of the sliding and rotation is observed as the predominant mode of displacement, and the rotation mode is dominant. The positions near the face (35 cm) and the ends of the reinforcement (140 cm) demonstrated larger settlement than that of the central position (70 cm and 105 cm). The reinforcement strain increased with increasing peak acceleration and maximum values measured at the central layers. The trends of the potential failure surface are similar to those of the 0.3H bilinear failure surface. The friction coefficient is nonlinearly distributed along with the reinforcements, and the maximum friction coefficient appears at the top layer (F11).

中文翻译：

---

土工格栅加筋挡土墙抗震性能振动台研究

本研究展示了在缩小规模的土工格栅加筋土挡土墙 (RSRW) 上进行振动台试验的实验结果，以研究在不同峰值加速度下的基频、加速度放大、工作面位移、回填表面沉降和加筋应变的地震响应。持续时间。基频与预测值非常吻合。均方根 (RMS) 加速度放大系数随墙高非线性增加，随地震荷载增加而减小，不视为恒定值。峰值位移的分布与残余位移的分布一致。观察到滑动和旋转的组合是位移的主要模式，旋转模式占主导地位。靠近工作面 (35 cm) 和钢筋末端 (140 cm) 的位置比中心位置 (70 cm 和 105 cm) 表现出更大的沉降。钢筋应变随着峰值加速度和在中心层测得的最大值的增加而增加。潜在破坏面的趋势与0.3H双线性破坏面的趋势相似。摩擦系数随钢筋呈非线性分布，最大摩擦系数出现在顶层（F11）。潜在破坏面的趋势与0.3H双线性破坏面的趋势相似。摩擦系数随钢筋呈非线性分布，最大摩擦系数出现在顶层（F11）。潜在破坏面的趋势与0.3H双线性破坏面的趋势相似。摩擦系数随钢筋呈非线性分布，最大摩擦系数出现在顶层（F11）。