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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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Here is a story that I was told long ago–the details are shrouded in the mists of history, but the story is worth repeating for the lessons learnt are always relevant.   (more…)

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Most people like to talk about the benefits of sustainable mining.  Seldom, however, do we see a concrete report on successful sustainable mining.  By way of quick admission: I am a sceptic of the concept and have frequently written critical blog postings on the abuse and mis-use of the term.  Let me, then, take a different approach in what follows.

What is say here is bolstered by what I and a number of friends wrote in papers presented at the Banff Conference Tailings and Mine Waste ’09.  At this link are the PowerPoint presentations.  At the following links are copies of some of the actual papers: (more…)

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   The bookstores I wondered into here in southern California all have many books that describe the things you must do and see before you die.  Kind of cloying, but a reflection of the money and habits of old people like myself.  My host on Friday night admitted that she had never seen the Four Corners area of the United States although she has taken and plans trips to Russia, Italy, and China.  I told her she is deprived and ignorant of her own country and the glories of the Anasazi empire.  She told me I was drunk and obstreperous.

Thus I retort with this list of five mines everybody should see before they die…….or write sanctimoniously about any aspect of mining.  This list reflects my personal prejudices and experiences.  You can probably designate your own five that is very different.

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