Slope stability study of São Luís mine located in Catas Altas/MG combining GIS and usual investigation methods

Authors

  • Ítalo Menezes EESC
  • Oswaldo Filho EESC-USP

DOI:

https://doi.org/10.24849/j.geot.2015.134.06

Keywords:

Slope stability, Stereograms, Limit equilibrium

Abstract

Analysis methods of slope stability are highly developed and consolidated in Engineering Geology. In addition, the application of GIS (Geographic Information System) tools has been intensified in all fields of technical-scientific knowledge. In this context, this study aimed to develop an approach to characterize the stability of mining slopes combining GIS techniques and traditional methods of geological geotechnical analysis. The investigation was developed in two scales of work: firstly, a semi regional characterization using GIS and thematic maps and, secondly, a detailed analysis, which used stereograms and limit-equilibrium. The semi-regional characterization allowed an understanding of the area surrounding the mine, through parameters such as slope, curvature and direction of slope. The stereogram analyses indicate various situations of instability whose features are identified in the field, confirming the susceptibility to these types of rupture. Similarly, the limit equilibrium analyses showed lower safety factors for small slides, which affected only a few slopes.

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References

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Published

2015-07-21

Issue

Section

Articles