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Geomechanical analysis of open pits at Cerro Vanguardia

Iñaki García Mendive, Ariel Abad and Alejo Sfriso
Monday, October 12, 2015
First presented: 
Slope Stability Conference 2015 - SAIMM, Cape Town

Cerro Vanguardia is a gold-silver mine located in the central steppe of Santa Cruz province, Argentina. The deposit consists of several veins 3.5–10 m in width and 19 km in length. Mining is currently carried out by means of open pits averaging 100–200 m in depth and, more recently, underground developments. More than 50 open pits are expected to be developed during the lifetime of the project. This work presents the stability assessment carried out on pit Osvaldo Diez cutback 7, which comprises limit equilibrium analysis (LEA) and finite element modelling (FEM).

Feature Author

Alejo Oscar Sfriso

Alejo O. Sfriso is a Principal Engineer with 25 years of experience in geotechnical engineering for infrastructure and mining works. He is an expert in the application of numerical methods for geotechnical design and analysis. In addition to his activity at SRK, he is the Director of AOSA - Geotechnical Laboratory, Professor of Soil Mechanics and Geology of the University of Buenos Aires, Vice President for South America of the International Society of Soil Mechanics and Geotechnical Engineering for the period 2017 - 2021, former Professor of Geotechnics at the National University of La Plata and former President of the Argentinean Society of Geotechnical Engineering.

Principal Consultant
PhD, Civil Engineer
SRK Buenos Aires
SRK Latin America