格宾石笼加筋土挡墙边坡地震动力特性研究
摘要
对格宾石笼加筋土挡墙边坡的加速度峰值与基波频率演变特征进行了研究。结果表明:边坡的加速度峰值体现出明
显的高程放大效应,在0.8g时的响应特征最为明显;不同层的加速度峰值比值基本上位于1-1.14之间,表明加固后
相邻两层坡体协同性良好;随着输入地震波幅值的增长,卓越频带逐渐收窄,且振动能量主要集中于低频部分;第1
层与第3层的基波频率基本上位于5.87Hz左右,第4层与第5层的振动差异性在0.8g时增大,表明了格宾石笼加筋土
挡墙具备良好的抗震性能。
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DOI: http://dx.doi.org/10.12361/2661-3506-07-12-151274
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