Laboratory investigation of pullout behavior of strengthened geogrid with concrete pieces in fine sand

The use of geogrid as an extensible material in the soil reinforcement has increased significantly; moreover, its effects on the efficiency of soil reinforcement are essential for the stability analysis and the design of reinforced soil structures under pullout conditions. This paper aims to investigate the feasibility of utilizing strengthened geogrids to reinforce the fine sand. The system is composed of a geogrid as a longitudinal member and...