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Open AccessFeature PaperArticle

A Modeling Platform for Landslide Stability: A Hydrological Approach

1
Department of Civil Engineering, Sharif University of Technology, Tehran 11365-11155, Iran
2
National Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia
*
Author to whom correspondence should be addressed.
Water 2019, 11(10), 2146; https://doi.org/10.3390/w11102146
Received: 6 September 2019 / Revised: 30 September 2019 / Accepted: 10 October 2019 / Published: 15 October 2019
Landslide events are among natural hazards with many fatalities and financial losses. Studies demonstrate that natural factors such as rainfall and human activities such as deforestation are important causes of triggering a landslide. In this study, an integrated two-dimensional slope stability model, SSHV-2D, is developed that considers various aspects of hydrological effects and vegetation impacts on the stability of slopes. The rainfall infiltration and water uptake of roots change the water content of the unsaturated zone. The temporal and spatial distribution of water content is estimated in the hydrological unit of the developed model. The vegetation unit of the model considers interception loss due to the existence of canopies and trunks, soil reinforcement effect by roots, root water uptake, the impact of root on hydraulic conductivity, and the influence of vegetation weight on slope stability. Benchmark problems with and without vegetation are solved for the model verification. The analyses demonstrate that the consideration of matric suction in the unsaturated zone can increase the safety factor more than 90%. It is also observed that the existence of trees with high density on a slope can increase the factor of safety about 50% and prevent shallow landslides. The present model is a platform for further development of more comprehensive and elaborative slope stability models. View Full-Text
Keywords: water flow in unsaturated zone; Richard’s equation; slope stability; vegetation; hydrology water flow in unsaturated zone; Richard’s equation; slope stability; vegetation; hydrology
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MDPI and ACS Style

Emadi-Tafti, M.; Ataie-Ashtiani, B. A Modeling Platform for Landslide Stability: A Hydrological Approach. Water 2019, 11, 2146. https://doi.org/10.3390/w11102146

AMA Style

Emadi-Tafti M, Ataie-Ashtiani B. A Modeling Platform for Landslide Stability: A Hydrological Approach. Water. 2019; 11(10):2146. https://doi.org/10.3390/w11102146

Chicago/Turabian Style

Emadi-Tafti, Mohsen; Ataie-Ashtiani, Behzad. 2019. "A Modeling Platform for Landslide Stability: A Hydrological Approach" Water 11, no. 10: 2146. https://doi.org/10.3390/w11102146

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