A method for predicting the factor of safety of an infinite slope based on the depth ratio of the wetting front induced by rainfall infiltration

Chae, B.-G.; Lee, J.-H.; Park, H.-J.; Choi, J.

doi:10.5194/nhess-15-1835-2015

Articles | Volume 15, issue 8

https://doi.org/10.5194/nhess-15-1835-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Landslide Prediction & Forecasting

https://doi.org/10.5194/nhess-15-1835-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 8

Research article

|

18 Aug 2015

Research article |

| 18 Aug 2015

A method for predicting the factor of safety of an infinite slope based on the depth ratio of the wetting front induced by rainfall infiltration

B.-G. Chae, J.-H. Lee, H.-J. Park, and J. Choi

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Latest update: 17 Nov 2025

Short summary

This study presents a modified equation of infinite slope stability analysis based on the concept of the saturation depth ratio associated with the rainfall. A rainfall infiltration test was performed using an unsaturated soil column to understand the effect of the saturation depth ratio. The proposed model was applied to assess its feasibility and to develop a regional landslide susceptibility map using a GIS. The approach in this study showed better performance than the steady-state approach.