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Influence of schistosity on the strength and wave velocity characteristics of a mica schist saprolite

L'influence de la schistosité sur la résistance à la compression et sur la vitesse des ondes d'un saprolite de mica schiste

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Abstract

Anisotropy in a mica schist saprolite is investigated by consideration of its unconfined compressive strength and wave velocity characteristics for different inclinations of the planes of schistosity. In each locality, the differences for each characteristic with respect to the inclinations of schistosity planes were significant. Microfabric studies aided the explanation for the differences obtained. The pertinence of this anisotropy in soil grouping as well as in site investigation and engineering construction is discussed.

Résumé

L'anisotropie d'un saprolite de micaschiste a été étudiée en considérant sa résistance à la compression maximale et les caractéristiques des vitesses des ondes pour des inclinaisons différentes des plans de schistosité. A chaque endroit, les différences trouvées pour chaque caractéristique par rapport à l'inclinaison de la schistosité sont importantes. Des études de la microstructure ont aidé à l'explication des différences trouvées. La pertinence de cette anisotropie en ce qui concerne la classification des sols ainsi que les études de reconnaissance et les travaux de construction est discutée.

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Authors and Affiliations

  1. Dept. of Geology & Mineral Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigéria

    Olufemi Ogunsanwo

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  1. Olufemi Ogunsanwo
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Ogunsanwo, O. Influence of schistosity on the strength and wave velocity characteristics of a mica schist saprolite. Bulletin of the International Association of Engineering Geology 43, 75–79 (1991). https://doi.org/10.1007/BF02590173

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  • DOI: https://doi.org/10.1007/BF02590173

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