Factors controlling the triggering randomity for rainfall-induced landslides
Factors controlling the triggering randomity for rainfall-induced landslides
Landslides are a significant downhill movement of soil that can have disastrous effects. Numerous research studies have been conducted to enhance the prediction of landslides where the empirical statistical approaches are widely utilized. These methods, however, have high false positive rates and limited accuracy. To address the above-described limitations, new insights from deterministic methods are provided to examine the randomness that triggers rainfall-induced landslides. Different patterns regulate the temporal prediction where there is a three-hour temporal difference between the delayed and advanced patterns. A unique analysis of the feature governing the recovery of the slope is developed using a new feature called effective non-rainfall duration. The recovery time increases as hydraulic conductivity and initial suction decrease, and rainfall intensity and duration increase, whereas the opposite is true. This work offers novel insights into a recurrent question: When should the antecedent effect be incorporated to increase the accuracy of the empirical threshold?
Kyrillos Ebrahim; Tarek Zayed
18th African Regional Conference on Soil Mechanics and Geotechnical Engineering (ARCSMGE2024)
Slopes, embankment and retaining
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