Articles | Volume 19, issue 5
https://doi.org/10.5194/hess-19-2197-2015
https://doi.org/10.5194/hess-19-2197-2015
Research article
 | 
07 May 2015
Research article |  | 07 May 2015

Quantification of the influence of preferential flow on slope stability using a numerical modelling approach

W. Shao, T. A. Bogaard, M. Bakker, and R. Greco

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Short summary
The effect of preferential flow on the stability of landslides is studied through numerical simulation of two types of rainfall events on a hypothetical hillslope. A model is developed that consists of two parts. The first part is a model for combined saturated/unsaturated subsurface flow and is used to compute the spatial and temporal water pressure response to rainfall. Preferential flow is simulated with a dual-permeability continuum model consisting of a matrix/preferential flow domain.