Numerical- simulation of compaction-induced stress for the analysis of RS walls under surcharge loading

Nascimento, Gabriel de Carvalho; Ehrlich, M.; Mirmoradi, S.H.

doi:10.1016/j.geotexmem.2020.02.011

Cited by 24 publications

(2 citation statements)

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“…Considering the compaction modelling by applying a uniform vertical stress to the top of each backfill layer, the numerical analyses significantly overestimate the measured values of the reinforcement strains, connection loads and facing displacement. When the compaction was simulated by applying a distribution load at the top and bottom of each soil layer, satisfactory agreement has been generally observed between measurements and calculated values during construction (Mirmoradi and Ehrlich, 2018a) and surcharge loading (Nascimento et al, 2020).…”

Section: Discussionmentioning

confidence: 73%

“…The numerical simulation of the compaction was performed using the two mentioned procedures found in the literature. The behaviour of the wall was studied using both compaction procedures at the end of construction as well as the post-construction (Nascimento et al, 2020). Furthermore, two design methods are used to evaluate the prediction accuracy of these methods, when the induced stress due to the compaction is relevant (Mirmoradi & Ehrlich, 2015b, Ehrlich et al, 2017.…”

Section: Introductionmentioning

confidence: 99%

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Experimental, numerical, and analytical investigation of the effect of compaction-induced stress on the behavior of reinforced soil walls

Mirmoradi¹,

Ehrlich²,

Nascimento³

2020

S&R

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The influence of the compaction-induced stress (CIS) is experimentally, numerically and analytically evaluated on the behavior of reinforced soil walls (RSWs), under working stress conditions. Experimental studies have been carried out to evaluate the effect of the compaction condition at the back of the block facing on the behavior of geosyntheticreinforced soil walls using three large-scale geosynthetic-reinforced soil walls constructed at the COPPE/UFRJ Geotechnical Laboratory. The numerical analyses have been carried out using the two-dimensional finite difference computer program FLAC to verify the influence of the compaction modelling procedure at the end of construction as well as post-construction performance of a full-scale geosynthetic-reinforced soil, GRS, segmental wall under surcharge loading. Two procedures for modelling the CIS found in the literature were employed in the analyses. Moreover, the calculated values using two design methods have been compared to the measurements and numerically calculated maximum reinforcement load, T max , to evaluate the prediction accuracy of these methods when the value of the CIS is relevant.

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Section: Discussionmentioning

confidence: 73%