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http://dx.doi.org/10.7843/kgs.2015.31.2.5

Change of Slope Stability due to Slope Inclination and Surface Conditions  

Hwang, Young-Cheol (Dept., of Civil Engrg., Sang Ji Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.31, no.2, 2015 , pp. 5-11 More about this Journal
Abstract
Slope stability is affected by duration of precipitation, probable rainfall intensity, unsaturated soil property, and soil strength. The recent analyses of slope stability tend to include unsaturated analysis based on infiltration properties of soil, while researches of unsaturated soil slope tend to include the analysis of deformation and stress distribution of soil over time. However, infiltration property of unsaturated soil slope depends not only on intensity or duration of precipitation, but also on relief and surface condition, which is not considered in status quo. This research uses hydrologic model parameters of soil in order to consider effects of inclination on filtration, and carries out analysis of unsaturated soil slope to confirm the effects according to slope inclination and surface condition. In conclusion, using slope stability analysis, the need to consider infiltration rate according to inclination and surface condition was confirmed even under the same precipitation conditions.
Keywords
Slope stability; Unsaturated soil analysis; Rainfall infiltration rate; Slope surface condition; Slope inclination;
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Times Cited By KSCI : 3  (Citation Analysis)
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