| Title |
Factor of Safety of Local Instability in Soil Nail Slopes |
| Authors |
고이잔나릿(Koy, Channarith) ; 김범준(Kim, Beom-Jun) ; 장현익(Jang, Hyun-Ick) ; 이상래(Lee, Sang-Rae) ; 윤찬영(Yune, Chan-Young) |
| DOI |
https://doi.org/10.12652/Ksce.2018.38.3.0449 |
| Keywords |
국부 쐐기파괴 메커니즘;이론식;네일 보강 설치패턴;안전율 Failure mechanism of local instability;Theoretical equation;Installation patterns of soil nail;Safety factor |
| Abstract |
In this study, a soil nail design method for a stability analysis of local instability with nail reinforced slope was proposed. The failure mechanism of a local instability of slope was studied and a theoretical equation to estimate the stability of slope was developed. Using the developed equation, the stability analysis was performed according to installation conditions of soil nail such as a slope inclination, a thickness of soil layer, a nail inclination, and a nail spacing. Considering those design factors, a sensitivity analysis for each influence factors was conducted. Analysis results showed that the safety factor of reinforced slope with nail was higher than the slope without nail. In addition, the safety factor of slope according to ground condition was increased in the order of dry, saturated, and seepage condition. |