Implications of DFN Model Selection in Open Pit Bench Stability Analyses

Martin Grenon; John Hadjigeorgiou

doi:10.21701/bolgeomin.131.3.004

Autores/as

Martin Grenon Université Laval
John Hadjigeorgiou University of Toronto

DOI:

https://doi.org/10.21701/bolgeomin.131.3.004

Palabras clave:

estabilidad de laderas de bancos, Malla de fractureas Discretas (DFN), Análisis de Equilibrio Límite (LEA)

Resumen

En el diseño de estabilidad de laderas de bancos en minas a cielo abierto, un enfoque que acopla la Malla de Fracturas Discretas (DFN) y el Análisis de Equilibrio Límite (LEA) tiene ventajas significativas sobre un análisis convencional. La fiabilidad de este enfoque está directamente relacionado a la calidad de los datos de entrada y a la habilidad para la generación de la DFN que capture adecuadamente las características del macizo rocoso. Distintos generadores de DFN tienen requerimientos específicos de entrada y asunciones inherantes a los mismos. Este trabajo trata sobre el problema crítico de seleccionar el modelo apropiado de DFN. A través de un ejemplo elaborado se ilustran las implicaciones de seleccionar una serie de diferentes modelos y generadores DFN sobre el análisis de estabilidad e interpretación de los resultados. Se muestra como este factor tiene un impacto significativo sobre el diseño de las pendientes a cielo abierto.

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Citas

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