Predicting the performance of geosynthetic-reinforced soil walls with segmental block facings in service is a challenging task due to their complex interaction mechanisms. This paper proposes a semi-analytical method to estimate the performance of such walls by considering a prescribed reduction factor. Rough back of the wall and unreinforced zone effects can be taken into account. It also incorporates an empirical formula to consider reinforcement stiffness to accurately characterize the nonlinear interaction between geosynthetics and soil. Seven full-scale tests and three robust numerical simulations were employed to evaluate the proposed method. The results demonstrate satisfactory estimations of lateral displacement and reinforcement force location with a rational reduction factor. Additionally, the physical significance of the reduction factor is identified, and a method for its determination based on data analysis is proposed. This method eliminates the need for sophisticated numerical analyses to determine lateral displacements. Further investigation is required to explore the correlation between the reduction factor and various design parameters, aiming to establish a more generalized formula for predicting the performance of GRS segmental walls.

中文翻译：

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节段块状饰面土工合成材料加固土墙横向位移预测方法


由于具有复杂的相互作用机制，预测具有节段块状饰面的土工合成材料加固土墙在使用中的性能是一项具有挑战性的任务。本文提出了一种半分析方法，通过考虑规定的折减因子来估计这种墙的性能。可以考虑墙壁的粗糙背面和未加固的区域效果。它还结合了一个考虑钢筋刚度的经验公式，以准确描述土工合成材料与土壤之间的非线性相互作用。采用 7 次全尺寸测试和 3 次稳健数值模拟来评估所提出的方法。结果表明，具有合理的折减因子对横向位移和加固力位置的令人满意的估计。此外，确定了折减因子的物理意义，并提出了一种基于数据分析的折减因子确定方法。这种方法消除了确定横向位移的复杂数值分析的需要。需要进一步研究以探索折减系数与各种设计参数之间的相关性，旨在建立一个更通用的公式来预测 GRS 节段墙的性能。