Centrifuge modelling of root reinforcement of slopes

Rene Sonnenberg, M. F. Bransby, P. D. Hallett, A. G. Bengough, M. C.R. Davies

Research output: Chapter in Book/Conference paperConference paperpeer-review

2 Citations (Scopus)

Abstract

The stability of slopes may be modified by plant roots that permeate the soil. Thus, vegetation may form a natural method of mechanically reinforcing soil and preventing shallow slope failures. To date, the effect of vegetation is not considered routinely in design largely because of uncertainty in application of existing vegetation reinforcement models. This paper reports a series of centrifuge model tests conducted to investigate the mechanical stabilisation of slopes by plant roots. Compacted clay embankments were constructed with steep (45°) side slopes and brought to failure by increasing the height of the internal water table. By comparing the collapse behaviour of fallow (i.e. unreinforced) slopes to that of those reinforced by root analogues or real willow roots, the reinforcing effect can be found.

Original languageEnglish
Title of host publicationPhysical Modelling in Geotechnics - Proceedings of the 7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010
Pages1137-1142
Number of pages6
Volume2
Publication statusPublished - 1 Dec 2010
Externally publishedYes
Event7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010 - Zurich, Switzerland
Duration: 28 Jun 20101 Jul 2010

Conference

Conference7th International Conference on Physical Modelling in Geotechnics 2010, ICPMG 2010
Country/TerritorySwitzerland
CityZurich
Period28/06/101/07/10

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