Behavior of Geosynthetic-Reinforced Segmental Retaining Walls in Tiered Arrangement

This paper presents the results of an investigation on the behavior of geosynthetic-reinforced segmental retaining walls in tiered arrangement. A finite element model capable of modeling the fundamental behavior of geosynthetic-reinforced segmental retaining wall was used to perform a parametric study. Primary variables considered in the parametric study include the offset distance between the tiers and the reinforcement length in the lower tier. The results of the parametric study were then used to highlight the interaction mechanism between the upper and the lowers. Practical implications of the findings from this study are discussed in great detail.