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Comportement mécanique à l'appareil de cisaillement de casagrande de trois graveleux latéritiques compactés provenant du Sénégal Occidental

Stress-strain behaviour of three compacted lateritic gravel from Western Senegal using the shear box machine

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Résumé

Les sols latéritiques compactés sont très largement employés comme remblais et matériaux de construction routière dans les pays tropicaux. La résistance au cisaillement de ces sols a fait l'objet de nombreuses études et les résultats sont très contrastés. Les résultats d'études de trois graveleux latéritique du Sénégal Occidental compactés à l'OPM sont exposés. Les paramètres de résistance au cisaillement semble alors être fonction du niveau de contrainte normale et de l'état d'imbibition de ces sols.

Abstract

Compacted laterite soils are widely used as fills and road construction materials in tropical countries. The shear strength characteristics of these soils have been the subject of important studies and have produced slightly contrasting results. The results of the shear strength of three OMP compacted laterites from Western Senegal are examined in this paper. The shear strength parameter obtained using the big shear box (150 mm×150 mm, which can be extended to 300 mm) is a fonction of the level of stress and is also dependent on the state of the samples (soaked or not).

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Authors and Affiliations

  1. Institut des Sciences de la Terre (IST) (UCAD-Dakar), BP 5396, Dakar-Fann, Sénégal

    M. Fall

  2. Laboratoire de Géomécanique (ENSG-INPL), BP. 40, 54501, Vandœuvre-Lés-Nancy, France

    J. -P. Tisot

  3. Laboratoire de Mécanique des Sols ENSUT (UCAD-Dakar), BP 5085, Dakar-Fann, Sénégal

    I. K. Cisse

Authors
  1. M. Fall
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  2. J. -P. Tisot
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  3. I. K. Cisse
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Fall, M., Tisot, J.P. & Cisse, I.K. Comportement mécanique à l'appareil de cisaillement de casagrande de trois graveleux latéritiques compactés provenant du Sénégal Occidental. Bulletin of the International Association of Engineering Geology 52, 59–73 (1995). https://doi.org/10.1007/BF02602682

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  • DOI: https://doi.org/10.1007/BF02602682

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