Articles | Volume 24, issue 4
Technical note
07 Apr 2020
Technical note |  | 07 Apr 2020

Technical note: The beneficial role of a natural permeable layer in slope stabilization by drainage trenches

Gianfranco Urciuoli, Luca Comegna, Marianna Pirone, and Luciano Picarelli

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Cited articles

Aloi, F., Pirone, M., and Urciuoli, G.: Numerical investigation of small- and medium-diameter drain wells to stabilise deep landslides, Acta Geotech., 14, 1065–1080,, 2019. 
Bromhead, E. N.: An analytical solution to the problem of seepage into countfort drains, Can. Geotech. J., 21, 657–662, 1984. 
Burghignoli, A. and Desideri, A.: On the effectiveness of tubular drains, in: Proceedings of the IX ECSMFE, 31 August–3 September 1987, Dublin, Ireland, vol. 1, 121–124, 1987.  
D'Acunto, B. and Urciuoli, G.: Groundwater regime in a slope stabilised by drain trenches, Math. Comput. Model., 43, 754–765, 2006. 
D'Acunto, B. and Urciuoli, G.: Heavy rainfalls long term effects and mitigation with drains, in: Advances in environmental research, edited by: Aider, M. and Muller, T., Nova Science Publishers, New York, USA, vol. 2., 323–347, 2010. 
Short summary
The aim of this paper is to demonstrate, through a numerical approach, that the presence of soil layers of higher permeability, a not unlikely condition in some deep landslides in clay, may be exploited to improve the efficiency of systems of drainage trenches for slope stabilization. The problem has been examined for the case that a unique pervious layer, parallel to the ground surface, is present at an elevation higher than the bottom of the trenches.