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TMW2022 discussion and video presentation

TMW2022 discussion and video presentation covers some important points and coveys our gratitude to the friendly colleagues that helped us overcome a significant work overload. Indeed, for the first time since 2013, we could not make it to the conference to present in person the results of our R&D. We were particularly sorry for this, as the reviewer wrote: The authors present a discussion on how to optimize actions needed to address risk mitigation to ALARP for a large TSF…

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Questions on ALARP studies at Tailings 2022

 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,…

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TCFD and TNFD for mining

TCFD and TNFD for mining: concepts, examples and caveats, is the paper we presented at #CIMBC22 Mineral Economics and Finance. Photograph provided by: Adolfo Tribst Corrêa We asked the audience if they were familiar with the: Task Force on Climate Related Financial Disclosure (Task Force on Climate-Related Financial Disclosures | TCFD) (fsb-tcfd.org) and Task Force in Nature-related Financial Disclosure (TNFD – Taskforce on Nature-related Financial Disclosures). Only a couple hands rose. Significant points of our discussion on TCFD and TNFD for…

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Review of Credibility Crisis

Today we present the review of Credibility Crisis, Brumadinho and the politics of mining industry reform. The authors of this book are A. Hopkins and D. Kemp, 2021. To be precise, we focus our discussion on the process and choices that finally shaped the GISTM, as the authors report them, rather that on the opinions the authors express. Indeed, as the book makes it clear, not all voices had the same weight during the process and the Panel deliberations. Overall,…

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ORE2 tailings conclusions

This series of eight blogposts is a summary of what a standard ORE2_Tailings™ quantitative risk assessment deployment report includes. Indeed, the ultimate goal of the report is Risk-Informed Decision-Making (RIDM) support for the owner and the EoR. As a matter of fact the methodology is compatible with ISO 31000 and of course ICMM GISTM. The ORE2_Tailings™ deployment uses archival documents supplied by the client for each Tailings Storage Facility (TSF) and finally related dams and written Q/A sessions The report…

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first steps ORE2 tailings workflow

First steps ORE2 tailings workflow: 2 – ARCHIVAL DOCUMENT SEARCH METHODOLOGY The archival documents delivered by the client to Riskope should cover the TSFs and their dams including: geotechnical studies; geological studies; design reports; geotechnical analyses reports; inspections; correspondence; incidents descriptions; dam break analyses; FIA and GISTM consequences evaluations; emergency plans; and finally monitoring (equipment and measurements as applicable). During the deployment we deliver an analysis of the archival gaps, i.e. a list of documents that are apparently missing or…

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General ORE2 tailings workflow

ORE2_Tailings™ is a quantitative risk assessment platform. Riskope designed it specifically for tailings systems (active and inactive). When we deploy ORE2_Tailings™ to a portfolio of dams, possibly over multiple properties, it allows for tactical and strategic planning. Our practice has shown that ORE2_Tailings™ and the general ORE2 tailings workflow, delivers results similar to those of common practice quantitative approaches (Event trees, Failure trees, Bowties). Furthermore ORE2_Tailings™  enables answering specific questions linked to the causality of potential failures, optimization of cost…

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Tailings dam mitigation risk informed decision making

Tailings dam mitigation risk informed decision making closes the discussion we presented in prior blogposts. We now focus on one dam and show how ORE2_Tailings™ supports rational and sensible risk mitigation decision-making as requested by GISTM. The dam case The dam we selected for this example is inactive and is parallel to a valley bottom. An unprotected creek runs at its toe and the bed is considered to be sufficient for the 1/500 return. Beyond that flood, there will be…

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