The stability of natural slopes in different areas of the Canary Islands have been analysed through the relation between cohesion, friction angle and slope height. The combination of estimates for geomechanical parameters of intact rocks of the Canary Archipelago, the geological strength index (GSI) and textural features were used to deduce geomechanical parameters of rock massifs. This paper discusses the changes in cohesion and friction angle as a function of the slopes height for different rock massifs and geological conditions expressed in the form of GSI. Such differences may define the threshold between stability and instability of slopes and have relevant implications in the volcanic hazards of certain areas Of the Canary Islands which are discussed here.
Slope Stability in the Canary Volcanoes Based on Geotechnical Criteria
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Rodríguez-Losada, J.A. , Eff-Darwich, A. , Hernández, L.E. , Olalla Maranón, C. , Perucho, A. , and A. Serrano González. "Slope Stability in the Canary Volcanoes Based on Geotechnical Criteria." Paper presented at the ISRM International Workshop on Rock Mechanics and Geoengineering in Volcanic Environments, Puerto de la Cruz, Spain, May 2010.
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