| Title |
A Behavior of Curve Section of Reinforced Retaining Wall by Model Test |
| Authors |
기정서(Ki, Jung Su) ; 류우현(Rew, Woo Hyun) ; 김선곤(Kim, Sun Kon) ; 천병식(Chun, Byung Sik) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.6C.249 |
| Keywords |
보강토 공법;보강토 옹벽;곡선구간;수평변위 reinforced earth method;reinforced retaining wall;curve section;horizontal displacement |
| Abstract |
The reinforced earth method is financially viable. Furthermore, it overcomes environmental limitations and is therefore employed in retaining walls, slopes, foundations, roads, embankments, and other structures. However, in some cases, reinforced retaining walls are not strong enough in the curved sections and can collapse. Such mishaps are believed to occur because of an unsatisfactory analysis of the curved sections of a reinforced retaining wall. Accordingly, with the aim of investigating the workability and structural safety of curved sections of various types, this study investigates the differences in the estimated horizontal displacements of curved sections of various types and subsequently uses this information to study and analyze preliminary data so that appropriate measures can be taken to resolve alignment issues. The results of an experiment reveal that when a load is applied to curved sections of both concave and convex types, the largest horizontal displacement occurs at the center of the section. In the concave form, the earth pressure force is directed inward, whereas in the convex form, this force is directed outward. As a result, the horizontal displacement in convex forms is larger than that in concave forms. Convex reinforced earth structures are subjected to earth pressures as well as lateral earth pressure, therefore horizontal displacements in convex curved sections is larger than that of concave curved sections. |