Chang, B. (2012). “Paradigm change for disaster reduction on cut slope in korea.” Disaster & Safety, National Disaster Management Institute, Vol. 14, No. 4, pp. 16-21 (in Korean).Chang, B. (2012). “Paradigm change for disaster reduction on cut slope in korea.” Disaster & Safety, National Disaster Management Institute, Vol. 14, No. 4, pp. 16-21 (in Korean).

Fredlund, D.G. and Xing, A. (1994). “Equations for the soil-water characteristic curve.” Canadian Geotechnical journal, Vol. 31, No. 4, pp. 521-532.Fredlund, D.G. and Xing, A. (1994). “Equations for the soil-water characteristic curve.” Canadian Geotechnical journal, Vol. 31, No. 4, pp. 521-532.

Fredlund, D. G. and Rahardjo H. (1993). Soil mechanics for unsaturated soils, John Wiley &Sons, Ins. Fredlund, D. G. and Rahardjo H. (1993). Soil mechanics for unsaturated soils, John Wiley &Sons, Ins.

Fredlund, D. G., Xing, A. and Huang, S. (1994). “Predicting the permeability function for unsaturated soils using the soil-water characteristic curve.” Canadian Geotechnical Journal, Vol. 31, No. 3, pp. 533-46.Fredlund, D. G., Xing, A. and Huang, S. (1994). “Predicting the permeability function for unsaturated soils using the soil-water characteristic curve.” Canadian Geotechnical Journal, Vol. 31, No. 3, pp. 533-46.

GEO-SLOPE International Ltd. (2004). “Computer program SEEP/W for finite element seepage analysis.” User's guide, Calgary, Alta, Canada.GEO-SLOPE International Ltd. (2004). “Computer program SEEP/W for finite element seepage analysis.” User's guide, Calgary, Alta, Canada.

GEO-SLOPE International Ltd. (2004). “Computer program SLOPE/W for slope analysis.” User’s guide, Calgary, Alta, Canada.GEO-SLOPE International Ltd. (2004). “Computer program SLOPE/W for slope analysis.” User’s guide, Calgary, Alta, Canada.

Huff, F.A. (1967). “Time distribution of rainfall in heavy storms.” Water Resources Research, Vol. 3, No. 4, pp. 1007-1019.Huff, F.A. (1967). “Time distribution of rainfall in heavy storms.” Water Resources Research, Vol. 3, No. 4, pp. 1007-1019.

Huff, F. A. (1970). “Time distribution characteristics of rainfall rates.” Water Resources Research, Vol. 6, No. 2, pp. 447-454.Huff, F. A. (1970). “Time distribution characteristics of rainfall rates.” Water Resources Research, Vol. 6, No. 2, pp. 447-454.

Kim, J., Park, S. W., Jeong, S. and Yoo, J. (2002). “A study of stability analysis on unsaturated weathered slopes based on rainfall-induced wetting.” Journal of Korean Geotechnical Society, Vol. 18, No. 2, pp. 123-136 (in Korean).Kim, J., Park, S. W., Jeong, S. and Yoo, J. (2002). “A study of stability analysis on unsaturated weathered slopes based on rainfall-induced wetting.” Journal of Korean Geotechnical Society, Vol. 18, No. 2, pp. 123-136 (in Korean).

Kim, J., Jeong, S., Park, S., and Sharma, J. (2004). “Influence of rainfall-induced wetting on the stability of slopes in weathered soils.” Engineering Geology, Vol. 75, No. 3-4, pp. 251-262.Kim, J., Jeong, S., Park, S., and Sharma, J. (2004). “Influence of rainfall-induced wetting on the stability of slopes in weathered soils.” Engineering Geology, Vol. 75, No. 3-4, pp. 251-262.

Krahn, J., Fredlund, D. G., and Klassen, M. J. (1989). “Effect of soil suction on slope stability at Notch Hill.” Canadian Geotechnical Journal, Vol. 26, No. 2, pp. 269-278.Krahn, J., Fredlund, D. G., and Klassen, M. J. (1989). “Effect of soil suction on slope stability at Notch Hill.” Canadian Geotechnical Journal, Vol. 26, No. 2, pp. 269-278.

Lambe, P. C. (1996). “Residual soils. In: Special Report 247. Landslides: Investigation and Mitigation.” Washington DC: TRB, National Research Council, pp. 507-524.Lambe, P. C. (1996). “Residual soils. In: Special Report 247. Landslides: Investigation and Mitigation.” Washington DC: TRB, National Research Council, pp. 507-524.

Lee, S. R., Kim, Y., Oh, T., and Kim, H. (2009). “Influence of rainfall intensity and saturated permeability on slope stability during rainfall infiltration.” Journal of Korean Geotechnical Society, Vol. 25, No. 1, pp. 65-76 (in Korean).Lee, S. R., Kim, Y., Oh, T., and Kim, H. (2009). “Influence of rainfall intensity and saturated permeability on slope stability during rainfall infiltration.” Journal of Korean Geotechnical Society, Vol. 25, No. 1, pp. 65-76 (in Korean).

Ministry of Construction and Transportation. (2000). Report of Investigative Study on Water Resources Management in Year 1999 (in Korean). Ministry of Construction and Transportation. (2000). Report of Investigative Study on Water Resources Management in Year 1999 (in Korean).

Ng, C. W. W., and Shi, Q. (1998). “A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage.” Computers and geotechnics, Vol. 22, No. 1, pp. 1-28.Ng, C. W. W., and Shi, Q. (1998). “A numerical investigation of the stability of unsaturated soil slopes subjected to transient seepage.” Computers and geotechnics, Vol. 22, No. 1, pp. 1-28.

Oh. S., Moon, J., Kim, T., and Kim, Y. (2008). “A case study of rainfall-Induced slope failures on the effect of unsaturated soil characteristics.” Journal of Korea Society of Civil Engineering, Vol. 28, No. 3C, pp. 167-178 (in Korean).Oh. S., Moon, J., Kim, T., and Kim, Y. (2008). “A case study of rainfall-Induced slope failures on the effect of unsaturated soil characteristics.” Journal of Korea Society of Civil Engineering, Vol. 28, No. 3C, pp. 167-178 (in Korean).

Park, S. and Shin G. (2009). “Stability analysis on unsaturated gneiss weathered soil slopes considering wetting path soil- water characteristic curve.” Journal of Korea Society of Civil Engineering, Vol. 29, No. 5C, pp. 191-198 (in Korean).Park, S. and Shin G. (2009). “Stability analysis on unsaturated gneiss weathered soil slopes considering wetting path soil- water characteristic curve.” Journal of Korea Society of Civil Engineering, Vol. 29, No. 5C, pp. 191-198 (in Korean).

Rahardjo, H., and Leong, E. C. (1997). “Soil-water characteristic curves and flux boundary problems, unsaturated soil engineering.” Practice-Geotechnical Special Publication, 68, pp. 88-112.Rahardjo, H., and Leong, E. C. (1997). “Soil-water characteristic curves and flux boundary problems, unsaturated soil engineering.” Practice-Geotechnical Special Publication, 68, pp. 88-112.

Vanapalli, S. K., Fredlund, D. G., Pufahl, M. D., and Clifton, A. W. (1996). “Model for prediction of shear strength with respect to soil suction.” Canadian Geotechnical Journal, Vol. 33, No. 3, pp. 379-392.Vanapalli, S. K., Fredlund, D. G., Pufahl, M. D., and Clifton, A. W. (1996). “Model for prediction of shear strength with respect to soil suction.” Canadian Geotechnical Journal, Vol. 33, No. 3, pp. 379-392.