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  • The influence of porosity on geomechanical characteristics of snail soil in the Ljubljana Marsh
    Žlender, Bojan, 1957- ; Trauner, Ludvik
    This article focusses on mineralogical and physical characteristics of snail soil and their influence on parameter values of geomechanical characteristics.Snail soil, which got its name from fossil ... remains, is a typical layer observed in the Ljubljana marsh. It is distincltly porous, saturated and in a liquid consistency state. Snail soil was investigated for mineralogical and physical characteristics in the Laboratory of Soil Mechanics, Faculty of Civil Engineering of the University in Maribor. Mineral and chemical composition, visual appearance, specific surface and grain property were determined. Physical characyteristics show that snail soil is saturated in nature, highly porous and almost liquid. Geomechanical characteristics were investigated for their interdependency on physical characteristics. A series of triaxial tests were performed on snail soil samples of different porosity, density and water content. Cylindrical samples of the height of 100 mm and the diameter of 50 mm were tested using three-axial testing apparatus. The results of the tests show that interdependency exists between geomechanical characteristics and porosity. These relationships can be expressed as functions of density, porosity or water content. It is evident from the results that changes of the coefficient of permeability, the coefficient of consolidation, and the coefficient of volume compressibility are nonlinear with respect to changes in porosity. Changes of mechanical parameters, such as Young`s modulus, Poisson`s ratio andfriction angle are indistinct and almost linear at lower changes of porosity.
    Vir: Acta geotechnica Slovenica. - ISSN 1854-0171 (Vol. 3, [no.] 2, 2006, str. 35-42)
    Vrsta gradiva - članek, sestavni del ; neleposlovje za odrasle
    Leto - 2006
    Jezik - angleški
    COBISS.SI-ID - 11078678

    Povezava(-e):

    Digitalna knjižnica Slovenije - dLib.si
    Digitalna knjižnica Univerze v Mariboru – DKUM

vir: Acta geotechnica Slovenica. - ISSN 1854-0171 (Vol. 3, [no.] 2, 2006, str. 35-42)

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