Soils: Contribution For Engineering Geology Studies

Authors

  • Franklin dos Santos Antunes Pontifícia Universidade Católica, Departamento de Engenharia Civil
  • Helena Polivanov Universidade Federal do Rio de Janeiro, Instituto de Geociências
  • Hugo Portocarrero Universidade do Estado do Rio de Janeiro
  • Tácio Mauro Pereira de Campos Pontifícia Universidade Católica, Departamento de Engenharia Civil

DOI:

https://doi.org/10.11137/2015_1_180_198

Keywords:

Soil formation, Weathering profile, Residual soils, Mineralogical analysis

Abstract

The objective of this paper was to discuss in simplified and multidisciplinary terms and through an engineering geology point of view the different variables related to the development of residual, transported, organic, expansive and lateritic soils, contributing to standardize concepts of geotechnical interest mineralogical and chemical data from five profiles whose respective saprolitic soils were formed by the action of weathering processes on gneissic metamorphic rocks in tropical and subtropical climatic environment were presented and discussed. The residual soils developed from these rock, besides the great abundance in the state of Rio de Janeiro, have thicknesses greater than 10 meters, being associated with large landslides and mass movements occurred in the last 50 years both in that state and in others. The article emphasizes finally that the presence of relict heterogeneities in saprolitic soils and saprock inherited from their source rocks should not be discarded in the analysis of slope stability and foundations projects.

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Published

2017-02-15

Issue

Vol. 38 No. 1 (2015)

Section

Article

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.