Abstract The selection of geosynthetic reinforcements in the design of geosynthetic-reinforced soil (GRS) retaining walls has been based on the requirement on the long-term strength. However, the mobilized loads in the reinforcements are related to both the reinforcement stiffness and soil deformation, and the desired factor of safety may not exist in the earth structure if they are not properly considered. Therefore, it is also important to take into account the long-term reinforcement stiffness when designing GRS retaining walls. In this study, a simplistic analytical method is proposed to determine the required reinforcement stiffness with given factor of safety on the backfill soil. The method takes into account soil-reinforcement interaction, nonlinear stress-strain behavior of soil, and soil dilatancy. The reinforcement strains predicted by the proposed method were compared to those analyzed by validated nonlinear Finite Element analyses, and close agreement was obtained.

中文翻译：

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给定安全系数的回填土竖向加筋土墙所需加筋刚度的一步分析法

摘要 土工合成材料加筋土（GRS）挡土墙设计中土工合成材料的选择是基于对长期强度的要求。然而，加筋中的动荷载与加筋刚度和土体变形有关，如果考虑不当，土结构中可能不存在所需的安全系数。因此，在设计 GRS 挡土墙时，考虑长期钢筋刚度也很重要。在这项研究中，提出了一种简单的分析方法来确定回填土上给定安全系数所需的钢筋刚度。该方法考虑了土壤与钢筋的相互作用、土壤的非线性应力应变行为和土壤剪胀。