Practical Nomograms for Waste Rock Piles Design on Competent Foundations (disponible en anglais seulement)

2 novembre, 2018 | Livre blanc

Luciano Piciacchia

LUCIANO PICIACCHIA, ing., Ph.D.

Directeur - Sol et infrastructure

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VAHID MAREFAT, ing. jr, Ph.D.

Ingénieur en géotechnique et hydrogéologie

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JOSÉ ANTONIO VIDES, ing., M.ing.

Ingénieur en gestion des résidus miniers et environnement

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Ce document est disponible en anglais seulement.

Waste Rock Piles can measure hundreds of meters in height and their failure can put life and property at extreme risk as well as significantly impact the surrounding environment. As such, waste rock piles should be considered structures, rather than dumps. Waste rock piles geometry and height is site-specific and govern the level of risk associated to its construction, operation and management. However, the design of these structures does not always garner the rigorous attention that they should be afforded. This paper provides practical nomograms for designing waste rock piles on solid competent foundations. In cohesionless soils, commonly placed using end-dumping methods, the stability of the stockpile slope depends on the angle of internal friction (Ø), slope angle and the height, for a given depth of critical slip failure. The nomograms presented herein are based on the requirement of attaining an overall factor of safety of 1.5 and a local factor of safety of 1.2.

Notez que ce livre blanc a fait l’objet d’une présentation lors de la conférence Tailings and Mine Waste’18 à Colorado State University.

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