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Landslides risk assessment

Natural and man-made slopes portfolio require Landslides risk assessment in order to ensure sustainable management. Slopes present hazardous geo-morphological processes such as landslides which can occur discretely (some deformation, cracking followed by a large movement) or “continuously” (deformations ranging between a few millimeters and several centimeters per years with occasional accelerations followed by a return to “average velocity”). Shall we manage hazards or risks? Any slope, anywhere in the world, has a probability of occurrence (of “first” failure). Continuously sliding…

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Open pit walls catastrophic failure probabilities for a captive insurance

Four or five years ago an insurance company asked us to estimate open pit walls catastrophic failure probabilities for a captive insurance. A that time of our study recent publications of pit wall failures databases we not yet available. Like we did for tailings dams failures in 2013 we used approximate data we found, i.e. a sample portfolio of forty open pits records and a table from a 1996 Swedish with 24 open pit failures research. Open pit walls catastrophic…

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Data required for ORE2-Tailings risk assessment

Every group we present ORE2-Tailings to is curious about the Data required for ORE2-Tailings risk assessment. In follow-up to a presentation, the client requested the following three information:  What are the 30 diagnostic points ORE2-Tailings uses to evaluate the annual probability of failure of a dam?  Is there a peer reviewed publication about the methodology?  What are the steps to define the risk tolerance of a corporation or an operation/project? Data required for ORE2-Tailings risk assessment This section summarily describes…

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Tailings 2.0: Space observation, quantitative risk assessment bring value and comply with societal demands

At the coming Tailings and Mine Waste conference (TMW2018) Riskope and MDA will jointly present a one day course entitled “Tailings 2.0: Space observation, quantitative risk assessment bring value and comply with societal demands” Tailings 2.0: Space observation, quantitative risk assessment bring value and comply with societal demands During the “Tailings 2.0: Space observation, quantitative risk assessment bring value and comply with societal demands” course we will review state of the art risk assessment methodologies and space observation technologies that together…

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ORE2-Tailings dam analysis

Welcome to ORE2-Tailings dam analysis ORE2-Tailings dam analysis delivers value to the mining industry. In addition it supports communication between owners, regulators and the public. That is quickly and at affordable costs ORE2-Tailings dam analysis is beneficial for those who: design, permit, construct, operate, insure and finally, perhaps close,tailings/waste storage facilities in the mining and oil & gas extraction industry. Why ORE2-Tailings dam analysis? The key note lecture by Henry Brehaut at TMW2017 stated that “….clearly, the need emerges to develop…

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Opportunity, experience, learning from mistakes and regrets

Opportunity, experience, learning from mistakes and regrets come up in many conversations. Examples generally start with a IF: I had known what I know now. It would be possible to start over again. A second chance would be possible. It seems like we really firmly believe we can learn from prior mistakes. We can absorb lesson learned and profit from them. However, there is abundant evidence that is not the case. We tend to repeat patterns, even if we know they…

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UNEP Tailings Dams report and residual risk assessment

UNEP Tailings Dams report and residual risk assessment discusses the joint UNEP-GRID Arendal assessment entitled “Mine Tailings Storage: Safety Is No Accident” from a risk assessment point of view. The United Nations Environment Programme (UNEP) released the report in October 2017 in Geneva. The report urges States and the industry to “end deadly and damaging mining waste spills by enforcing a zero-failure objective”. We believe that this objective requires some additional definitions and details. That is to make it truly…

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Sendai Framework for Disaster Risk Reduction and the mining industry

This “Sendai Framework for Disaster Risk Reduction and the mining industry” blogpost looks at what constitutes a minimal requirement for a Risk Assessment applied to a mining orphan site in 2013. That occurred as a result of Public Hearings in the NWT. It then examines recent development in the field, welcoming the apparently general request for multidimensional consequence analyses. A bit of reminiscing For the reclamation of Giant Mine the MVREIB, an Environmental Review Board in Arctic Canada quoted the…

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