construction Archives

ORE2 tailings deployment steps

ORE2 Tailings deployment steps: 5.1 Failure definition We designed ORE2_Tailings™ to support RIDM for tailings dams portfolios reliability enhancements. One achieves reliability by reducing failure likelihood to a certain level, and risks are tolerable. Thus it is necessary to clearly state what one considers the success of a structure within the portfolio. Indeed, unless we clearly define success, failure remains an ambiguous term. ORE2_Tailings™ considers a dam successful if it: stands as built and does not break allowing for…

SLM and the Probability of failure of a tailings dam

SLM and the probability of failure of a tailings dam goes back 35 years. A paper entitled “Probability and Risk of Slope Failure” (Silva et al., 2008) proposed using quantification of expert judgement. That is a subjective/semi-empirical probability evaluation as a practical alternative for determining probability of slope failure. We call this approach SLM, using the initials of the authors. SLM culminates with semi-empirical relationships between Factor of Safety -FoS- and probability of failure -pf-. That relationship allows to estimate…