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Posts Tagged ‘cannon mine’

At the expense of repeating myself, I say again: I am convinced that the most successful mine closure ever is that of the Cannon Mine near Wenatchee.  At this link is a website that tells it all.  (more…)

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Professor Jere Jennings who taught so many of us now-old civil engineers in mining used to say: “When you have read everything there is to read, when you have done all the calculations possible, then drink a bottle of brandy and exercise engineering judgement.” (more…)

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There is more civil engineering in mining than there is mining engineering in mining.  To substantiate this controversial statement let me repeat below something I wrote a long time ago.  (more…)

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Risk is the product of probability and consequence.  In the long term, as time proceeds to infinity, the probability of an adverse event tends to one.  When seeking to control the risk of long-term tailings facility failure, there is little we can do about the probability of failure.  In the goodness of time it will occur.  All we can do today, is to seek to limit the consequences of failure, adverse performance, and unacceptable impact. (more…)

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In early 1983 all was well in the mining consulting world.  We had twenty people busy on a great number of mining projects: exploration; resources; site selection; design; contract documents.  All those things we did back then: no EIS; no social responsibility; no sustainable development; and no closure planning. (more…)

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July 11 is the deadline for submission of papers to the Tailings and Mine Waste 2011 conference.  In preparation of one of my papers, I today read through the proceedings of the 1994 conference.  I am amazed at how bold the folk were in those days, how little they knew by comparison with today, and yet how much we owe them for efforst over the years.  Here are some of my notes on reading hte 1994 conference proceedings. (more…)

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