Print Email Facebook Twitter How to Use COMSOL Multiphysics for coupled dual-permeability hydrological and slope stability modeling Title How to Use COMSOL Multiphysics for coupled dual-permeability hydrological and slope stability modeling Author Shao, W. Bogaard, T.A. Bakker, M. Faculty Civil Engineering and Geosciences Department Water Management Date 2014-01-01 Abstract Preferential flow paths, such as cracks, macropores, fissures, pipes etc. are common features of highly heterogeneous slopes. During intense rainstorms, preferential flow has a significant influence on subsurface flow and slope stability. Dual-permeability models are widely used to simulate preferential flow, but have not been incorporated into hydro-mechanical models. In this study, the COMSOL Multiphysics software was used to couple a dual-permeability model with a soil mechanics model for landslide stability evaluation on a hillslope scale with examples of up to 100m spatial scale. Detailed information is provided on how to incorporate current hydrological and soil mechanics theories into COMSOL. The model is benchmarked against two existing solutions and is applied to evaluate the effect of preferential flow on slope stability as an example. Subject preferential flowdual-permeability modellocal factor of safetyslope stability analysisdCOMSOL Multiphysics To reference this document use: http://resolver.tudelft.nl/uuid:a024327c-412f-4bf8-a659-05a09a2fc800 DOI https://doi.org/10.1016/j.proeps.2014.06.018 Publisher Elsevier Source Procedia Earth and Planetary Science, 9, 2014; The Third Italian Workshop on Landslides: Hydrological Response of Slopes through Physical Experiments, Field Monitoring and Mathematical Modeling Part of collection Institutional Repository Document type journal article Rights © 2014 ElsevierThis is an open access article under the CC BY-NC-ND license Files PDF Shao_2014.pdf 603.44 KB Close viewer /islandora/object/uuid:a024327c-412f-4bf8-a659-05a09a2fc800/datastream/OBJ/view