Resumo

HADJIGEORGIOU, J.  e  WESSELOO, J.. Challenges in the use of verbal probability expressions in communicating risk. J. S. Afr. Inst. Min. Metall. [online]. 2026, vol.126, n.1, pp.23-34. ISSN 2411-9717.  https://doi.org/10.17159/2411-9717/3738/2026.

Mining companies employ a multitude of risk management tools. The effectiveness of these tools for decision-making and communicating risk has not been addressed. This paper investigates the use of verbal probabilistic expressions in communicating geomechanical risk. Analysing survey data obtained from a group of mining geomechanics professionals, it identifies limitations of common probabilistic expressions. The paper concludes by making specific recommendations to avoid the use of certain expressions that may result in increased uncertainty, thus compromising the use of risk management tools.

Palavras-chave : mining geomechanical risk; verbal expression of probability; risk matrix.

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