Yasuyuki Nabeshima

Effect of Surface Holding on Stabilizing Mechanism of Reinforced Natural Slope

In recent years, various reinforced earth methods of natural slope are proposed. The authors also proposed a new reinforced natural slope method which consists of five main parts such as rock bolts, tie rods, steel wing plates, cap plates and pressure plates and has a holding effect of slope surface by combining with five parts. We have investigated and confirmed the surface holding effect on stabilizing mechanism of natural slope through direct and zone shear tests. In this paper, we investigated the surface holding effect through direct and zone shear tests and compared the proposed method with concrete frame method with reinforcements about the surface holding effect. And we also performed the same tests in a different ground condition. As the results, the surface holding effect on stabilizing mechanism of dense sand was clear in the zone shear test. It was confirmed that the proposed method and concrete frame method have similar shear strength and surface holding effect in the dense sand.