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Modeling Study for Effects of Hydrothermal Clay Vein on Slope Stability  

Jo, Hwan-Ju (Department of Earth and Environmental Sciences, Korea University)
Jo, Ho-Young (Department of Earth and Environmental Sciences, Korea University)
Jeong, Kyung-Mun (Dohwa Consulting Engineers Co. Ltd.)
Publication Information
Economic and Environmental Geology / v.43, no.2, 2010 , pp. 185-196 More about this Journal
Abstract
Clay veins that occurred in a slope by hydrothermal alteration, can significantly affect its slope stability. The effect of clay veins on the slope stability was investigated by numerical modeling study. Various parameters such as cohesion, internal friction angle, orientation, groundwater level, rainfall intensity and duration, have been modelled. As shear strength increased, factor of safety increased. As groundwater level developed, factor of safety decreased. For the case of slip surface developed on interface, factor of safety was lower than that for case of slip surface developed on either weathered soil or clay vein. The effect of various soil types of the slope stability was also investigated by simulating seepage through the slopes with various soils. The groundwater level significantly increased on the slopes with silty and generic soils. For the slope with sandy soil, almost no change in groundwater level was observed due to rapid drainage.
Keywords
clay vein; slope stability; groundwater level; numerical modeling;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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