TXT-tool 3.001-1.1: Physical Modelling of Rain-Induced Landslides
Stability of a slope depends on many factors including geotechnical properties of soil, slope inclination and other slope geometry, position of water table, as well as external factors such as amount of rainfall and infiltration velocity, magnitude and frequency of ground shaking, etc. As the field condition is non-homogenous and is hard to simulate, sensitivity analysis is generally performed on laboratory based models to evaluate rainfall induced slope failure. These models are helpful in evaluating seepage velocity and reduction in suction with intensity and duration of rainfall and deformation of slope with rainfall. This tool explains on how the simple laboratory based models are developed to evaluate the effect of rainfall intensity and duration on the stability and deformation of slopes.
KeywordsIntensity and duration of rainfall Seepage velocity Wetting front Suction Deformation Tensiometer Slope stability
The authors would like to thank IRA funding # 361 at CSU Fullerton for providing financial support to conduct the experiments. Moreover, the authors would like to acknowledge their graduate students Duc Tran, Santiago Caballero, and Adam Lewis and undergraduate students John Stapleton and Yuliana Carrillo.
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