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Conceptual design and construction methodology of reinforced earth wall structures: Case study

Reinforced earth wall construction is very economical and less time consuming in compari-son with the conventional retaining wall, with the significant material advancement of synthetic fabrics-geotextile or geogrid and with the soil-geogrid interaction, solely based on the fundamental mechanism of friction and with soil interlocking, results as reinforcement in inducing tensile loads, with shear stresses at interfaces and confining stresses being developed simultaneously, redistributes these stresses back into soil, this enables more conveniently, for reinforced earth wall to take up the surcharge and other anticipat-ed loadings more firmly. In this paper, design and actual construction of varying heights of reinforced earth wall from 2.4m to 12.60m with Pedestrian underpass, Vehicular underpass, Flyover and Rail over bridge types of reinforced earth wall will be highlighted. Further, the pull-out test, connection strength be-tween the fascia panels and the Geogrid used, with the practical difficulties of Geogrid identification, PCC laying, tissue corner types, water logged site, panel distortion, selection of backfill material, edge compaction, reinforcing skew portion and settlements will be discussed practically.