Articles | Volume 19, issue 5
Hydrol. Earth Syst. Sci., 19, 2197–2212, 2015
https://doi.org/10.5194/hess-19-2197-2015
Hydrol. Earth Syst. Sci., 19, 2197–2212, 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 et al.

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Cited articles

Abramson, L. W.: Slope Stability and Stabilization Methods, John Wiley and Sons Incorporated, Hoboken, New Jersey, 2002.
Aleotti, P. and Chowdhury, R.: Landslide hazard assessment: summary review and new perspectives, B. Eng. Geol. Environ., 58, 21–44, 1999.
Allaire, S. E., Roulier, S., and Cessna, A. J.: Quantifying preferential flow in soils: a review of different techniques, J. Hydrol., 378, 179–204, 2009.
Armstrong, A. C., Matthews, A. M., Portwood, A. M., Leeds-Harrison, P. B., and Jarvis, N. J.: CRACK-NP: a pesticide leaching model for cracking clay soils, Agr. Water Manage., 44, 183–199, 2000.
Arnone, E., Noto, L. V., Lepore, C., and Bras, R. L.: Physically-based and distributed approach to analyze rainfall-triggered landslides at watershed scale, Geomorphology, 133, 121–131, 2011.
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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.