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Numerical evaluation of the effect of foundation on the behaviour of reinforced soil walls
Geotextiles and Geomembranes ( IF 4.7 ) Pub Date : 2021-01-19 , DOI: 10.1016/j.geotexmem.2020.11.007
S.H. Mirmoradi , M. Ehrlich , L.F.O. Magalhães

This study numerically investigates the influence of foundation conditions, in combination with other factors such as wall height and reinforcement and facing stiffness, on the behaviour of reinforced soil walls (RSWs) under working stress conditions. The foundation was simulated using different stiffnesses and geometries (with and without slope). The results highlight the importance of the combined effect of foundation conditions and the abovementioned factors on the performance of RSWs. The results of these analyses indicate that the shape of the distribution of the maximum reinforcement loads (Tmax) with respect to wall height depends on the combined effect of the foundation condition, facing and reinforcement stiffness, and wall height, and varies from trapezoidal to triangular. Additionally, the results indicate that the effect of variations in foundation stiffness on reinforcement tension mobilisation decreases with wall height. Furthermore, the Tmax prediction accuracy of three design methods were evaluated and some limitations of each method are presented and discussed.



中文翻译:

地基对加筋土墙性能影响的数值评估

这项研究数值研究了基础条件,并结合其他因素(如墙高,钢筋和饰面刚度)在工作应力条件下对加筋土墙(RSW)性能的影响。使用不同的刚度和几何形状(带有和不带有坡度)对基础进行了模拟。结果突出了地基条件和上述因素对RSWs性能的综合影响的重要性。这些分析的结果表明,最大增强载荷的分布形状(T max)关于墙高,取决于基础条件,饰面和钢筋的刚度以及墙高的综合影响,并且从梯形到三角形变化。此外,结果表明,基础刚度变化对增强张力动员的影响随壁高而减小。此外,评估了三种设计方法的T max预测精度,并提出和讨论了每种方法的一些局限性。

更新日期:2021-01-19
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