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Anisotropic strength properties of a quartz schist saprolite

  • Olufemi Ogunsanwo
Article

Abstract

Strength anisotropy in a quartz schist saprolite is examined via shear tests in which the inclinations of the planes of schistosity to the compression axis were varied. Results obtained are anomalous when compared with the general trend of results obtained for other schistose formations. The cementation of the soil particles along the planes of schistosity by the goethite present in the saprolite is deemed responsible for the anomaly.

Keywords

Nigeria Goethite Cementation Geotechnical Property Geotechnical Investigation 

Anisotropie des caractéristiques mécaniques d'un schiste quartzeux altéré

Résumé

L'anisotropie mécanique d'un schiste quartzeux altéré est étudiée à l'aide d'essais de cisaillement, en faisant varier l'orientation des plans de schistosité par rapport à l'axe de compression Les résultats obtenus sont anormaux, lorsqu'on les compare à ceux obtenus sur d'autres formations schisteuses. La cimentation des particules de sols le long des plans de schistosité par la goethite présente dans le schiste altéré pourrait expliquer cette anomalie.

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References

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Copyright information

© International Association of Engineering Geology 1993

Authors and Affiliations

  • Olufemi Ogunsanwo
    • 1
  1. 1.Dept. of Geology & Mineral SciencesUniversity of IlorinIlorinNigeria

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