DEFORMATION AND BEHAVIOR OF GEOGRID UNDER REINFORCED SOIL WALL

civil engineering

Static response of geogrid reinforced soil walls with wrap around facing resting on firm foundation to the externally imposed surcharge is presented in this paper. A series of small-scale experimental tests is performed on the model geogrid reinforced soil walls with variation in reinforcement spacing and reinforcement length. Parametric variation made is compared with the established codal provisions of BS-8006-2010 and FHWA-NHI-00-043. Experimental analysis will be performed in a prefabricated MS strong box. A thick glass panel was fixed on the front side of the box so as to capture mmovements and behaviour of reinforcement under the action of load.facing technique was used Reinforcement spacing was 0.084H for each model configuration. Reinforcement length was 0.7H for each model configuration. Surcharge loading was applied on each model in the form of 0.1m wide strip load. Each model test was monitored through front glass of the strong box using digital camera. Series of images is taken at fixed time interval for each test. Digital image analysis is performed on captured images to evaluate the movements in geogrid reinforced soil wall models at pre-failure and failure conditions. The post failure investigation was performed to assess the rupture points in the geogrid layers at failure of the geogrid reinforced soil wall models. The study demonstrates the comparison between design of geogrid reinforced soil wall models using standard guidelines of BS-8006-2010 and FHWA-NHI-00-043 with the actual experimental model tests performed in this study.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.