Cantilever walls are frequently and necessarily built not only in earthquake prone regions but also on different foundation subsoils with various physical and mechanical characteristics. The response of these structures is a complicated soil-structure interaction (SSI) problem, in which the relative stiffness between the soil and structure is of critical importance. In addition to different soil conditions and earthquake motions, the wall configurations have an important role in the cantilever retaining wall design. Thus, the major objective of this work is to investigate the effects of various configurations on seismic response of the cantilever retaining walls considering SSI. Accordingly, the seismic response of the interaction systems is revealed using the 3D finite element models (FEM) in time domain, assuming linearly elastic behavior for the wall, and elastoplastic behavior for backfill and foundation soil. Viscous absorbent boundaries are employed to both simulate radiation scenario and avoid undesirable wave reflections generated by soil lateral boundaries. Backfill-wall interfaces are modeled using the unidirectional interface elements with nonlinear force-deflection abilities. The interaction systems are analyzed considering three different cantilever wall configurations (inverted T-type, L-type, and the wall with a base key), four different ground motion records, and four different subsoil systems. Nonlinear seismic analyses are carried out to visit how considering the variation of these parameters influences the wall behavior. The results from parametric studies show that the wall configuration, SSI effects and ground motions are remarkably influential on seismic responses of the cantilever walls such as the stresses and horizontal displacements.

悬臂墙不仅在地震多发地区而且在具有各种物理和力学特性的不同基础底土上经常且必然地建造。这些结构的响应是一个复杂的土壤-结构相互作用（SSI）问题，其中土壤和结构之间的相对刚度至关重要。除了不同的土壤条件和地震运动外，墙体配置在悬臂挡土墙设计中具有重要作用。因此，这项工作的主要目的是研究各种配置对考虑 SSI 的悬臂挡土墙地震响应的影响。因此，使用时域中的 3D 有限元模型 (FEM) 揭示了相互作用系统的地震响应，假设墙体为线弹性行为，回填土和地基土为弹塑性行为。粘性吸收边界用于模拟辐射场景并避免由土壤横向边界产生的不希望的波反射。回填墙界面使用具有非线性力-偏转能力的单向界面元素建模。考虑到三种不同的悬臂墙配置（倒 T 型、L 型和带底键的墙）、四种不同的地面运动记录和四种不同的底土系统，对相互作用系统进行了分析。进行了非线性地震分析，以了解考虑这些参数的变化如何影响墙的行为。参数研究的结果表明，墙体配置，