Abstract Construction of mechanically stabilized earth (MSE) walls in multi-tiered configurations is a promising solution for increasing the height of such walls. The good performance of this type of walls after recent major earthquakes was reported in a number of technical studies. In the present study, an experimental approach was adopted to compare the seismic performance of single-tiered and multi-tiered MSE walls using physical modeling and through conducting a series of uniaxial shaking table tests. To do so, several geogrid-reinforced soil walls with wrap-around facing (i.e., three-, two-, and single-tiered) with a total height of 10 m were designed in the form of prototypes of 1-m-height wall models. The step-wise intensified sinusoidal waves were applied to the models in 14 typical forms. Comparing the shaking table test results confirmed the post-earthquake advantages of multi-tiered MSE walls. The results revealed that tiered walls exhibited better behaviors under earthquake loading in terms of the seismic stability of the wall, displacement of the wall crest, horizontal displacement of the wall facing, deformation mode and failure mechanism of the wall, settlement of backfill surface, and seismic acceleration responses.

中文翻译：

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多层土工格栅机械稳定土（MSE）墙在地震荷载作用下的环绕式饰面性能试验研究

摘要 在多层结构中建造机械稳定土 (MSE) 墙是增加此类墙高度的有前途的解决方案。许多技术研究报告了这种类型的墙在最近发生大地震后的良好性能。在本研究中，采用实验方法，通过物理建模和一系列单轴振动台试验来比较单层和多层 MSE 墙的抗震性能。为此，以1米高墙原型的形式设计了几个总高度为10 m的具有环绕饰面（即三层、两层和单层）的土工格栅加筋土墙楷模。逐步增强的正弦波以 14 种典型形式应用于模型。比较振动台试验结果证实了多层 MSE 墙的震后优势。结果表明，分层墙在地震荷载作用下表现出较好的墙体抗震稳定性、墙顶位移、墙体水平位移、墙体变形模式及破坏机理、回填面沉降等方面的性能。地震加速度响应。