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ORE2 tailings technical explanations

The first ORE2_Tailings™ deployment for a given client and selected TSF portfolio is an a priori endeavor insofar it delivers estimates that require calibration and adaptation as new data and new events will occur. In particular, this report will require amendments and updates when, for example, new Space Observation (satellite) or other monitoring results, corrective actions reports, changes in service conditions, new incidents reports and inspections may become available. ORE2 tailings technical explanations: Diagnostic poins  ORE2_Tailings™ is a subset of…

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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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Lessons learned in twenty years of hazard, risk and resilience analyses

Writing lessons learned in twenty years of hazard, risk and resilience analyses has been a difficult exercise for various reasons. We compiled  and explain lessons learned in our practice of risk assessment and resilience advice to industries, municipalities and regional governments around the world in our latest book, Convergent Leadership – Divergent Exposures: Climate Change, Resilience, Vulnerabilities, and Ethics. However, the fact that we systematically apply our quantitative convergent approach (ORE, Optimum Risk Estimates) to all sorts of industries and…

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Sustainability, ethics and risks

Sustainability, ethics and risks results from a discussion we read on LinkedIN. The discussion arose after our friend Giuseppe di Capua cited SUSTAINABLE MINING – WHAT EXACTLY DOES IT MEAN? . The author of that paper is David Ovadia, for the @IAPG blog (https://www.geoethics.org/ ). The core of the discussion These days,  mining projects oftentimes tout their ‘sustainability’. The term reverberates from sources like the UN’s sustainable development goals. David Ovadia wonders if the term sustainable  can be used in mining.…

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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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Tactical and strategic planning for dam portfolio using ORE2_Tailings

Tactical and strategic planning for dam portfolio using ORE2_Tailings is the third of a series of blogposts explaining how to use ORE2_Tailings™ results. Indeed it follows: Dam portfolio ORE2_Tailings support for decision makers and ORE2_Tailings supports ICMM global industry standard on tailings management conformance. We use the same figures we have developed in those prior discussions. Summary of the portfolio ORE2_Tailings™ results With respect to probability of failure The portfolio of ten dams is made of two “bad apple” dams…

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Dam portfolio ORE2_Tailings support for decision makers

Dam portfolio ORE2_Tailings support for decision makers follows-up on a prior example. We will show how to interpret the graph we present in that prior post. Dams probabilities of failure and ORE2_Tailings benchmarking at portfolio level. The portfolio of ten dams is displayed on the annualized probability of failure graph, together with the world-wide benchmarks. This graph shows dams: AA1 entirely under the benchmark range, AA3 straddling the benchmark range (uncertainty on the worse case pf estimate slightly above benchmark),…

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Risk tolerance for tactical and strategic planning

We discuss risk tolerance for tactical and strategic planning using an excerpt from a case study in our forthcoming book. The title is Convergent Leadership – Divergent Exposures and the case study is in Chapter 16. In the book we include three complete case studies with different level of information and requirement. Setting of the case study covering risk tolerance for tactical and strategic planning Kryptonite corp. has three plants shipping bulk material through a wharf called Terminal reached by railroad…

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