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Multi dimensional Consequences approaches take into consideration the varied losses that a failure can generate. Thus they allow for a more thorough and rational evaluation of a failure potential consequences. Indeed, by breaking down the consequences into distinct dimensions, such as environmental, economic, and social, an additive evaluation of multi dimensional consequences can provide a more realistic assessment of the risks associated with a failure. This approach also allows for greater consideration of the long-term implications of the failure. These…Read More
We need to diverge from “cosi fan tutti” if we want to truly bring something valuable to our profession and the public. Some professions are open to “disruption” and thus foster innovation. However, many voices around the world comment that strategic/ operational risk assessments, including tailings risk assessments are stuck in a complacent lull. Bring something valuable to our profession and the public is way more than doing our job diligently and perhaps having a fantastic career. Indeed, our friend…Read More
A mining company asked us to perform a Prefeasibility hazard adjusted NPV evaluation. Our action first focused on bringing clarity in their risk register which presented numerous classic mistakes. Among these the usual confusion in terminology, confusing risks and hazards, uncertainties vs risks, etc. Once the risk register was corrected it was possible to perform the requested hazard adjusted NPV and to draw valuable conclusions. Among these, we highlighted potential fatal flaws of the project which warranted in depth analyses…Read More
In order to develop a Tailings risk assessment methods comparison we will start by: reviewing a number of existing alternatives to ORE2_Tailings™. This leads to justify the need for the ORE2_Tailings™ approach, discussing what we call the Blackbox objection, which actually applies to all the alternatives and finally the ORE2_Tailings™ procedure, algorithm and results. Alternatives to ORE2_Tailings™ We have grouped possible alternatives into four families discussed below. FMEA FMEA is not a quantitative risk assessment even if it uses indices…Read More
Oftentimes we hear people objecting to quantitative risk assessments (QRA). Thus today we show three cases where quantitative risk assessment was paramount. Now, do not get mistaken, those are not the only cases where QRA is useful. However, they are particularly significant. Risk review of a mining mega project New projects are always exciting. Therefore their promoters oftentimes get emotionally attached to them to the point of forgetting that they may be exposed to significant risks. The use of codes…Read More
We undertake a risky mission today. That is to reply to information requests we have received from various interested readers in a very concise manner. The risks of the mission mostly arise from: the wide breath of the requests: “please let us know where we could learn about Riskope tailings management activities and methodologies” and the necessity to select among the vast available documentation. A classic preliminary reply We generally start our reply by inviting interested readers to visit Riskope’s…Read More
Readers and conference delegates asked the following Questions on ALARP studies at Tailings 2022 and when they read a case study on ALARP optimization. National regulation compliance Are the results of an ALARP analysis consistent with national regulations and design requirements? When we perform an ALARP analysis we consider local regulations. These will drive some a priori mitigative selections by the engineer of record. These bear on the nature and aim of mitigation stages for the ALARP analysis. For instance,…Read More
A Case Study on ALARP Optimization is the title our paper at Tailings 2022. The combination of probability of failure and consequences generates the potential risks of dams and other structures. Designers and owners should design, mitigate and monitor throughout the life and toward closure of dams. The GISTM indicates an ALARP objective for mitigation. In the paper we use an anonymized case to show how a dam’s probability of failure and risks evolve with its raising. In a second…Read More