# Behaviour Analysis of Reinforced Soil Retaining Wall According to Laboratory Scale Test
## 4 Results
### Analysis of the Height  
In convex cases, the displacement generated at each point is shown in Figure 15 according to the angle. The displacement generated at the center of the curved part (0.0 D) was analysed according to the angle in Figure 15a. When the angle of the curved part was 60\({}^{\circ}\) (CVX 60), the maximum displacement generated was largest, at 41 mm. In the case of CVX 90, the maximum displacement appeared at 39 mm and was shown at 29 mm and 24 mm for CVX 120 and 150, respectively. The maximum displacement occurred at CVX 60 and 90 where the height of the RSW appeared at about 380 mm on the base, that is, 0.53 H. For CVX 120 and 150, the maximum displacement occurred at 0.4 H. Figure 15b shows the displacement generated at a point separated by 0.5 D from the center of the curve. As can be seen from the Figure, in the case of CVX 60, it was found that a maximum displacement of 36 m occurred, and maximum displacements of 33 mm, 25 mm, and 23 mm occurred for CVX 90, 120, and 150, respectively. The maximum displacement was found to occur at 0.4 to 0.5 H in all cases, which was different from the tendency of 0.0 D at the center of the curve. Figure 15c shows the maximum displacement of each case at a point 1.0 D away from the center of the curve. As shown in Figure 15c, 27 mm, 28 mm, 22 mm, and 19 mm were generated at CVX 60, 90, 120, and 150, respectively. In addition, the point at which the maximum displacement occurred appears from about 0.4 to 0.5 H from the bottom surface of the RSW, which was the same in all cases. However, it was found that the maximum displacement occurred at a point about 0.1 H lower than 0.5 H, and the height became lower. Figure 15d shows the displacement surface generated in each case at a distance of 1.5 D from the center of the curve. As shown in Figure 15d, it was found that 25 mm, 27 mm, 20 mm, and 19 mm were generated at CVX 60, 90, 120, and 150, respectively. This is the same value as the  
Figure 14: Result of horizontal displacement for convex and concave type: (**a**) Convex; (**b**) Concave. measured maximum displacement at the 1.0 D point. The height at which the maximum displacement occurred at the 1.5 D point was 0.4 to 0.5 H, and 0.4 to 0.5 H at the 1.0 D point. The displacements according to the heights measured at points (0.5 D, 1.0 D, 1.5 D) horizontally separated at the center (0.0 D) of the curved part of the RSW formed in the concave (CCV) form are shown in Figure 16. As shown in Figure 16a, for the concave type, the larger the angle of the curved part, the smaller the maximum displacement. This is opposite to the result obtained with the convex RSW (Figure 15). It was found that the center of the curved part, the maximum displacement generated at the 0.0 D point), appeared at 4 mm from CCV 60, 4 mm for CCV 90, 4 mm for CCV 120, and 7 mm for CCV 150. It was found that CCV 60 and 90 appeared at 0.5 H construction with respect to than the bottom of the RSW, but CCV 120 and 150 produced the maximum displacement at 0.6 H with respect to than the point where the maximum displacement occurred. The maximum displacements generated at 0.5 D were as follows: CCV 60 to 5 mm, CCV 90 to 7 mm, CCV 120 to 7 mm, and CCV 150 to 8 mm. Similar to the results at 0.0 D, CCV 60 and 90 were 0.5 H and CCV 120 and 150 were 0.6 H, as was the case with the maximum displacement. The displacement at a point 1.0 D horizontally separated from the center 0.0 D point of the curved part appeared for CCV 60, 90, 120, and 150 at 13 mm, 11 mm, 14 mm, and 15 mm, respectively, and the 1.5 D points were 9 mm, 9 mm, 9 mm, and 12 mm, respectively.