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Archive for the ‘Mining history’ Category

The Tyee, a local Vancouver newspaper at this link, with some amazement recognizes with regard to the Morgenstern, Vick, and Van Zyl panel: (more…)

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ohnesans.tumblf.com_Lorenzo posing for charity calendar_by Erwoud Broeksma[1]

At this link is a great Master thesis recently completed by Genki Taguchi, a student of the University of British Columbia.  He is now back in Japan working in the coal mining industry.  Dirk Van Zyl supervised the thesis.  And if that link does not work, here is a second link.  A great job by both.  And a document which should become required reading by all in tailings. (more…)

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There is a great silence of information about the geotechnical issues possibly involved in the failure of the Mt Polley tailings dam.  No reports have been released; no letters published; no statistics provided.  Oh sure, a few old numbers of incidents in 2012, but the 2013 report is not yet ready. (more…)

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As a result of postings on this blog, I get private emails from people on almost every topic.  Here is one such email that is a cry from the heart, a sad tale, related to mining, and so difficult that I cannot answer it.  I have the sender of the email’s permission to post the following in the hope that somebody, maybe one of the blog’s readers can help. (more…)

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The five pictures in this posting, were taken (by me) at the Getty Center in Los Angeles.  This place is surely a testament to genius and attention to detail.

Yesterday I was asked if Canadian guidelines are adequate to deal with the Mt Polley situation. More specifically, the questions continued: if the current Canadian guidelines regarding tailings dam safety had been implemented, would the failure have been avoided. Before I answer these questions, let us first take a look at the guidelines that are out there. (more…)

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I have lost count of the number of radio stations, newspapers, and magazines that have contacted me asking for opinions on the Mt Polley tailings happenings.  Somehow the email from Adrian Lee of that most reputable of Canadian magazine, McLeans, had a air of intelligence the pulled me into replying.  (I confess to being a regular reader of McLeans.) (more…)

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Here are the stories of the seven dam failures that have occurred since the beginning of 2012. Six are failures of tailings facilities. The seventh is a rockfill dam. The following are extracts from technical papers that I wrote well before the Mt Polley failure. Details of the first three are available at this link. Details of the remaining four are in a paper that I will present at the Tailings and Mine Waste 2014 conference in Colorado in October of this year. (more…)

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