Steel Strip Reinforced Soil Walls at Working Stress Conditions

Lalinda Weerasekara

In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNC

Session: Soil Mechanics and Foundations (Ground Improvement)

ABSTRACT: For the purpose of validating design methods for Mechanically Stabilized Earth (MSE) retaining walls, it is customary to predict the maximum reinforcement loads from full-scale instrumented walls under working stress conditions. This paper presents such estimations using the design approach called the Soil Reinforcement Interaction (SRI) method for ten steel strip reinforced walls to demonstrate its prediction capabilities under the working stress conditions. The method was developed for estimating the internal stability of walls reinforced with both extensible and inextensible reinforcements. The method accounts for the soil-reinforcement interaction using a non-empirical analytical model. Apart from estimating the maximum reinforcement load, the method is capable of estimating the reinforcement load distribution and load transmitted to the facing connection. The method is also capable of accounting for the toe resistance and explaining its influence on the reinforcement load distribution unlike the existing design approaches.

RÉSUMÉ: Dans le but de valider les méthodes de calcul pour les murs de soutènement MSE, il est courant de prédire les charges de renforcement maximales des murs instrumentés à pleine échelle dans des conditions de tension de travail. Cet article présente de telles estimations en utilisant l'approche de conception appelée Interaction de renforcement de sol (SRI) pour dix murs renforcés de bandes d'acier pour démontrer ses capacités de prédiction dans les conditions de contrainte de travail. La méthode a été développée pour estimer la stabilité interne des murs renforcés avec des renforts extensibles et inextensibles. La méthode tient compte de l'interaction sol-renforcement en utilisant un modèle analytique non empirique. Outre l'estimation de la charge maximale de renforcement, la méthode permet d'estimer la répartition de la charge de renforcement et la charge transmise à la connexion en regard. La méthode est également capable de tenir compte de la résistance aux orteils et d'expliquer son influence sur la répartition de la charge de renforcement, contrairement aux.

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Cite this article:
Lalinda Weerasekara (2018) Steel Strip Reinforced Soil Walls at Working Stress Conditions in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.

@article{geo2018Paper160,author = Lalinda Weerasekara,title = Steel Strip Reinforced Soil Walls at Working Stress Conditions ,year = 2018}