Full-Scale Pull-out Test of The Reinforcement Member Incorporating
Both Friction Resistance and Bearing Resistance

Abstract

The authors newly developed a reinforcement member incorporating both bearing and friction resistances. The characteristics of pull-out resistance of the reinforcement member were studied by a small-scale model. In the present study, both laboratory- and field-scale tests were performed to understand the pull-out characteristics of the full-scale reinforcement member. The laboratory-scale pull-out test was performed to evaluate only a friction plate. The field-scale pull-out test was performed using the real reinforced earth wall constructed in this study. From the laboratory test, the pull-out resistance of friction plate can be estimated as the friction of lateral surface and the bearing resistance of the vertical section. From the field test, an evaluation method of the pull-out resistance of the reinforcement member was proposed. In the evaluation method, the summation of both bearing and friction resistances is used. Furthermore, at the beginning of the pull-out, the ratio of the friction resistance to the bearing resistance was relative large. The ratio decreased to about 50% at the final stage.