A risk consequence approach to open pit slope design

O.K. Steffen, P.J. Terbrugge, Johan Wesseloo, J. Venter, T.R. Stacey (Editor)

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Open pit slope design has conventionally been effected as a bottomupfunction utilizing available geotechnical information. This resultsin a decision criterion based on probability of failure and factor ofSafety with a risk assessment being carried out on the proposeddesign slopes. The design approach recommended reverses theprocess using fault event tree decision methodology. Theconsequences of this approach are that acceptable risk criteria haveto be determined by mine owners. Slopes are then designed by thetechnical staff to achieve these corporate goals. Benefits that arisefrom the process are that the owners take a proactive decision onthe risk-benefit relationship allowing the technical staff to optimizethe geotechnical exploration programme and design.
Original languageEnglish
Pages (from-to)503-511
JournalThe South African Institute of Mining and Metallurgy. Journal.
Volume106
Issue numberJuly
Publication statusPublished - 2006

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