Fig. 1. Forces for one slice
Fig. 2. Change of average safety factor with regard to height
Fig. 3. Normalized safety factor on height 10.0m
Fig. 4. Decreasing ratio of safety factor with regard to height
Fig. 5. Change of average safety factor with regard to slope
Fig. 6. Normalized safety factor on slope 1:1.2
Fig. 7. Increasing ratio of safety factor with regard to slope
Fig. 8. Normalized safety factor on cohesion 10kPa
Fig. 9. Normalized safety factor on angle of internal friction 20°
Fig. 10. Change of average safety factor with regard to cohesion
Fig. 11. Increasing ratio of safety factor with regard to cohesion
Fig. 12. Change of average safety factor with regard to angle of internal friction
Fig. 13. Increasing ratio of safety factor with regard to angle of internal friction
Fig. 14. Ground water level by rainfall infiltration (height=25.0m, slope=1:2.0)
Fig. 15. Safety factor with regard to ground water level
Fig. 16. Safety factor on height 10m
Fig. 17. Safety factor on slope 1:1.2
Fig. 18. Safety factor on cohesion 10kPa
Fig. 19. Safety factor on angle of internal friction 20°
Table 1. Minimum shear strength with regard to height and slope
Table 2. Decreasing ratio of safety factor on height 10.0m
Table 3. Increasing ratio of safety factor on slope 1:1.2
Table 4. Increasing ratio of safety factor on cohesion 10.0kPa
Table 5. Increasing ratio of safety factor on angle of internal friction 20°
References
- Ahn, S. J. (2015), "An analytical study on the safety factor of slopes considering various condition", Changwon National University Doctoral Dissertation (in Korean).
- Chen, Y. M., Lansivaara, T., and Wei, W. B. (2007), "Twodimensional Slope Stability Analysis by Limit Equilibrium and Strength Reduction Methods", Computers and Geotechnics, No.34, Vol.3, pp.137-150. https://doi.org/10.1016/j.compgeo.2006.10.011
- Cho, S. B. (2014), "Research on slope stability analysis of colluvium", University of Seoul Master's Thesis (in Korean).
- Gasmo, J. M., Rahardjo, H., and Leong, E. C. (2000), "Infiltration Effects on Stability of a Residual Soil Slope", Computers and Geotechnics, Vol.26, No.2, pp.145-165. https://doi.org/10.1016/S0266-352X(99)00035-X
- Hammah, R. (2005), "A Comparison of Finite Element Slope Stability Analysis with Conventional Limit-equilibrium Investigation", In Proceedings of the 58th Canadian Geotechnical and 6th Joint IAH-CNC and CGS Groundwater Specialty Conferences-GeoSask.
- Jung, J. G. (2015), "A study on the characteristics of shear strength parameters of various soils", Changwon National University Doctoral Dissertation (in Korean).
- Kim, M. S. (2012), "Comparison of finite element method and limit equilibrium method for slope stability analysis", Chonbuk National University Master's Thesis (in Korean).
- Kim, Y. M. (2004), "Slope Stability Analysis Considering Seepage Conditions by FEM Using Strength Reduction Technique", Journal of the Korean geotehnical society, No.20, Vol.8, pp.97-102 (in Korean).
- Kim, Y. S., Kim, J. H., Lee, J. G., and Kim, S. S. (2013), "A Study on Soil Slope Stability Design Considering Seepage Analysis", Journal of the Korean geotehnical society, No.29, Vol.1, pp. 135-147 (in Korean). https://doi.org/10.7843/kgs.2013.29.1.135
- Kim, Y. G. (2009), "Soil slope design and stability evaluation methodology considering hydraulic conductivity and rainfall characteristics", KAIST Doctoral Dissertation (in Korean).
- Korean geotechnical society (1994), geotechnical engineering series 5, Gumi company, pp.20 (in Korean).
- Lee, B. R. (2008), "A study on the application method of shear strength parameters for the cut-slope stability analysis", University of Seoul Master's Thesis (in Korean).
- Lee, D. Y. and Yoo, C. S. (2003), "Comparative Study between Finite Element Method and Limit Equilibrium Method on Slope Stability Analysis", Journal of the Korean Geotehnical Society, No.19, Vol.4, pp.65-74 (in Korean).
- Lee, J. G. and Chang, S. M. (1996), "Comparative Study on Slope Stability of Analysis Methods Abstract", Journal of the Korean Geotehnical Society, No.16, Vol.3-4, pp.359-368 (in Korean).
- Ministry of land, infrastructure and transport, Koren precipitation frequence data sever, http://www.k-idf.re.kr (in Korean).
- Oh, S. B., Moon, J. H., Kim, T. G., and Kim, Y. G. (2008), "Case Study of Rainfall-induced Slope Failures on the Effect of Unsaturated Soil Characteristics", Journal of the Korean Geotehnical Society, Vol.28, No.3C, pp.167-178 (in Korean).
- Oh, W. T. and Vanapalli, S. K. (2010), "Influence of Rain Infiltration on the Stability of Compacted Soil Slopes", Computers and Geotechnics, Vol.37, No.5, pp.649-657. https://doi.org/10.1016/j.compgeo.2010.04.003
- Rahardjo, H., Leong, E. C., and Rezaur, R. B. (2008), "Effect of Antecedent Rainfall on Pore-water Pressure Distribution Characteristics in Residual Soil Slopes under Tropical Rainfall", Hydrological Processes, Vol.22, No.4, pp.506-523. https://doi.org/10.1002/hyp.6880
- Rahimi, A., Rahardjo, H., and Leong, E. C. (2010), "Effect of Antecedent Rainfall Patterns on Rainfall-induced Slope Failure", Journal of Geotechnical and Geoenvironmental Engineering, Vol.137, No.5, pp.483-491. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000451
- Ryu, J. Y. (2003), "Estimation of Slope Stability During the Change of Matric Suction", Journal of the Korean Geotehnical Society, Vol.23, No.4C, pp.195-201 (in Korean).
- Whang, Y. C. (2015), "Change of Slope Stability due to Slope Inclination and Surface Conditions", Journal of the Korean Geotehnical Society, No.31, Vol.2, pp.5-11 (in Korean).
- Won, I. G. (2008), "A study on an estimated of presumptive equation of safety factor according to the slope incline", Changwon National University Master's Thesis (in Korean).
- Yang, G. H., Zhong, Z. H., Zhang, Y. C., and LI, D. J. (2010), "Slope Stability Analysis by Local Strength Reduction Method", Rock and Soil Mechanics, Vol.31, No.2, pp.53-58.