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Cyber world of crypto mining hit by real life natural disaster

No way to escape reality: Cyber world of crypto mining hit by real life natural disaster. We already discussed how the allegedly super-safe world of crypto-currencies is not so safe and news keep pouring in. However we are sure very few though that flooding could cripple the synthetic world of crypto-currencies. Years ago we wrote in this blog about a CEO who thought that our approach to multihazard risks was “too technical” and not “enough business oriented”. That CEO was…

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Mine site closure and long-term responsibility

We were recently invited to participate to a public discussion on mine site closure and long-term responsibility. Of course we participated and commented from our risk and reliability point of view. Below we summarize a few points we made. Perpetuity Various voices and now UNEP demand for continued stewardship, management and monitoring and finally information for projects and mining operations during production and closure. Long term decision making cannot be based on censored and biased scenarios, ignore uncertainties. That would…

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Regulations or Risk-based regulations for mine waste management

In these days of increased scrutiny by regulators and public opinion pressure we face a conundrum: Regulations or Risk-based regulations for mine waste management? The 2015 South African regulations reportedly specify design standards for mining waste disposal facilities based on the character of waste. As discussed in our recent blog post on mine waste classification systems waste characterization is a measure of the waste hazard and not of the risks generated by those wastes. Regulations based on hazards are ubiquitous…

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Common Cause Failures impact Risks

Today, we look at what happens when Common Cause Failures impact Risks. Common Cause Failures impact Risks defined Common cause failures (CCFs) are almost “simultaneous” failures of specific system’s elements resulting from single shared causes or coupling factor (or mechanisms). By applying the definition above we can immediately see there are two families of CCF: The coupled CCF, i.e. interdependent failures where one element failure drives the failure of another element and The uncoupled CCF where Physical or environment stresses…

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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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Australian law firm plans to sue world’s No.1 miner BHP

Australian law firm plans to sue world’s No.1 miner BHP. They argue BHP knew the Samarco dam was “at imminent risk of breaking”, but BHP was not transparent, breaching regulations. Reportedly the basis of the class action will be the belief the mining company mislead investors over safety measures, including public warning systems while it was aware of an “imminent collapse” and its very serious potential consequences. Australian law firm plans to sue world’s No.1 miner BHP The owners of…

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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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