Effects of geogrid shape on pullout resistance

Abstract

Various Geogrids are widely utilized and contribute the improvement of stability of embankment. Material properties and pullout characteristics are investigated respectively. However the properties of those geogrids are rarely compared each other and little is known about the effects of different material properties on earth reinforcement. It has been recognized that pullout resistance is important when we examine a stability of reinforced embankment. So pull-out tests were conducted to investigate the effects of difference of material properties of geogrids on pullout characteristics. Special attention was directed to look at the effects of the shape, yield resistance and stiffness of geogrids in this research.