APPLICABILITY OF GEOGRID-REINFORCED SOIL SEGMENTAL RETAINING WALL IN RAILWAY

초록

Nowadays, Geosynthetics is widely used as the reinforcement materials in earth structures in order to achieve efficient land utilization as well as securing safety in railway service lines. In this study, the real scale testing with the simulated train loading including impact load was performed in order to evaluate the applicability of geogrid-reinforced soil Segmental Retaining Wall (SRW) in railway embankment. The testing was focused on the dynamic performance of geogrid-reinforced soil SRW. As a result of experiment and analysis, it was found that the effect of simulated train loading on the geogrid-reinforced soil SRW was small in terms of the vertical earth pressure within the overall backfill, the horizontal earth pressure, horizontal deformation at the wall facing and the tensile strain along the geogrid. The data gathered by various measurement devices from this real scale testing can be utilized through the further analysis for evaluation of geogrid-reinforced soil SRW and contribute in understanding the behavior of SRW.