Archives

Archive

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…

Read More

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…

Read More

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…

Read More

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…

Read More

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),…

Read More

Dam portfolio ORE2_Tailings support for ICMM standard on tailings management.

Dam portfolio ORE2_Tailings support for ICMM standard on tailings management (GISTM) is multifaceted. ORE2_Tailings™ is a risk assessment platform specifically Riskope designed specifically for tailings systems. When we deploy it to a portfolio of dams, possibly over multiple properties, it allows for tactical and strategic planning. We have already discussed the single dam case in relation to ICMM • Global Industry Standard on Tailings Management (2020)  and the conformance protocols. Today we present an example of deployment at portfolio level.…

Read More

ORE2_Tailings supports ICMM global industry standard on tailings management conformance

ORE2_Tailings supports ICMM global industry standard on tailings management conformance (GISTM). ORE2_Tailings™ is a risk assessment platform specifically designed for tailings systems created by Riskope.   We recently published the notes we took while reading ICMM guidance and conformance protocols. In that text we stated that ORE2_Tailings™ anticipated the requirements of ICMM GISTM. Indeed, the threads of our publications, which culminated with Tailings Dam Management for the Twenty-First Century shows that evolution. Today we bring to your attention an example…

Read More

Reading the ICMM Guidance and Conformance protocols

We started reading the ICMM Guidance and Conformance protocols with great interest and were pleased with a number of specifications we saw. Of course, an endeavor of this magnitude and scope will stir a lot of interest in the mining world. From our end, given our long experience in tailings system risks, we could not resist to compare the protocols to our day-to-day practice. We noted areas where more detailed explanations would likely benefit the mining industry and the public.…

Read More

Hosted and powered by WR London.