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Effects of unsaturation on the stability of a moraine slope
Abstract The papers presents a numerical analysis of the stability of a moraine slope that reactivated after two heavy rainfall events in November 2000. To analyse the pore water pressure distribution within the slope, rainfall and evapotranspiration were applied to the slope over a period of four years that preceded the main landslide reactivation. Because of the uncertainty about the saturated hydraulic conductivities of the landslide soils, different combinations of these coefficients were analysed. The factor of safety of the slope was then calculated at the time where the slope moved, as recorded by the inclinometer measurements. This made it possible to verify which combinations of saturated hydraulic conductivities were compatible with the slope movements.
Effects of unsaturation on the stability of a moraine slope
Abstract The papers presents a numerical analysis of the stability of a moraine slope that reactivated after two heavy rainfall events in November 2000. To analyse the pore water pressure distribution within the slope, rainfall and evapotranspiration were applied to the slope over a period of four years that preceded the main landslide reactivation. Because of the uncertainty about the saturated hydraulic conductivities of the landslide soils, different combinations of these coefficients were analysed. The factor of safety of the slope was then calculated at the time where the slope moved, as recorded by the inclinometer measurements. This made it possible to verify which combinations of saturated hydraulic conductivities were compatible with the slope movements.
Effects of unsaturation on the stability of a moraine slope
Simeoni, L. (author) / Tarantino, A. (author) / Mongiovi, L. (author)
2005-01-01
12 pages
Article/Chapter (Book)
Electronic Resource
English
case study , evapotranspiration , numerical analysis , slope stability , unsaturated flow Engineering , Theoretical and Applied Mechanics , Engineering Fluid Dynamics , Continuum Mechanics and Mechanics of Materials , Appl.Mathematics/Computational Methods of Engineering , Classical Continuum Physics , Geophysics/Geodesy
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