One common type of reinforced wall is the back-to-back mechanically stabilized earth wall. These are used extensively for narrow road embankments, pedestrian ramps, bridge abutments and railway systems. In the current study, a series of 1 g shaking table tests were conducted to determine the dynamic performance of back-to-back strip-reinforced walls (BBSRWs). The models were constructed with different reinforcement overlap lengths (L_ov) and connection arrangements for two connected opposing walls. They then were subjected to base harmonic accelerations at different peak acceleration intensities. The seismic responses of the models demonstrated that the reinforcement arrangement plays a dominant role in the failure pattern, lateral deformation and mobilized tensile forces of the BBSRWs. The findings showed that separating the opposing walls and reducing the length of the reinforcement overlap increased lateral deformation and reduced the wall stability, while these are effective solutions for reducing the dynamic reinforcement load in a BBSRW. A combined slip surface is proposed for BBSRWs with a geometry that is not affected by changes in L_ov, but depends on the arrangement of the connected opposing walls.

一种常见的加筋墙是背靠背机械稳定土墙。它们广泛用于狭窄的路堤、人行坡道、桥台和铁路系统。在当前的研究中，进行了一系列 1 g 振动台试验，以确定背靠背带状钢筋墙 (BBSRW) 的动态性能。这些模型是用不同的钢筋重叠长度（L _ov) 和两个相连的相对墙的连接布置。然后，他们在不同的峰值加速度强度下经受基础谐波加速度。模型的地震响应表明，钢筋布置在 BBSRW 的破坏模式、横向变形和动员拉力中起主导作用。研究结果表明，分开相对的墙并减少钢筋重叠的长度会增加横向变形并降低墙的稳定性，而这些是减少 BBSRW 中动态钢筋载荷的有效解决方案。为 BBSRW 提出了一种组合滑动面，其几何形状不受L _ov变化的影响，但取决于连接的相对壁的布置。