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    The determination of suction-controlled slope stability in humid temperate environments

    Brooks, Susan and Anderson, M.G. (1995) The determination of suction-controlled slope stability in humid temperate environments. Geografiska Annaler: Series A, Physical Geography 77 (1/2), pp. 11-22. ISSN 0435-3676.

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    Certain slope failures in tropical environments have been shown to be suction controlled where soils are highly weathered, deep and permeable. No research has yet considered whether this phenomenon occurs in humid temperate environments, despite numerous papers on characteristic angles of natural slopes. In this paper two models are employed to assess whether hillslopes in humid temperate environments may be suction controlled. The first model, the resistance envelope model, provides an initial indication of the general hydrological conditions under which failure occurs. The second model, a physically-based coupled slope hydrology-slope stability model allows closer inspection of the hydrological mechanisms which govern slope failure. In 1988 a series of storms produced several shallow planar slope failures, in freely-draining, permeable soils on slopes in the Glen Livet Estate, Scotland. These provide a unique opportunity to test whether slope stability in humid temperate environments can be suction controlled. The two models, when applied to these slope failures, indicate the possibility that slopes may fail under unsaturated conditions, and that their stability is thus controlled by the minimum suction which may develop at the shear surface during high magnitude storms


    Item Type: Article
    School: School of Social Sciences, History and Philosophy > Department of Geography
    Depositing User: Sarah Hall
    Date Deposited: 03 Nov 2016 17:20
    Last Modified: 03 Nov 2016 17:20


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