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Archive for the ‘Waste Rock’ Category

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Spent today in a course on Covers in Cold Climates.  The course is part of the seminar to follow tomorrow and Wednesday on the same topics.  Arranged by InfoMine, it is being held in Whistler, which is a nice, but not spectacular place to have a conference—I prefer Banff or Vancouver.   For the Fairmont Chateau Whistler is a pale reflection of those other grand hotels with the Fairmont name: a bland and ugly exterior that replicates in cheap detail the features of the hotel in Vancouver that it tries to emulate. (more…)

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It is snowing in Vancouver.  Nothing sticking to the roads, but the trees are white and beautiful.  Nothing much to do outside or inside for that matter, so just  a few thoughts on mine waste disposal facility covers.

Slimes & Cement

The best cover is no cover.  If you can use the upper tailings or waste rock as the as the growth medium in which a stand of climax vegetation will flourish, you have the best cover. (more…)

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Every so often a presentation at a conference takes your breath away and leaves you amazed at the ability of the speaker and their colleagues. This happened today as a sat listening to Joel Carrasco of Ausenco present on a paper entitled Development of an integrated mine waste management plan of the metates gold-silver project, Durango and Sinaloa States, Mexico.   To get the paper, you will have to get the proceedings of the Tailings and Mine Waste Management 2013 conference or in due course download the presentation that I refer to from the website of the conference–I told it will take week or two to load pdfs of the presentations. (more…)

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In addition to blogging, I consult to the mining industry.  And I work with Andy Robertson who also owns InfoMine to promote conferences — something InfoMine has decided to undertake in a big way. A few months ago, Andy asked me what topic I thought would make for a good conference.  A short reflection and I suggested geosynthetics in mining.   Way back in 1974 or thereabouts, I became familiar with geosynthetics when i used Bidim to make the base of a tailings facility in South Africa.  I became very familiar with geosynthetics about five years ago when Andy and I suggested geotextiles and geogrid placed on frozen tailings for the Suncor Pond 5 cover base.  In between, I have designed geogrid reinforced slopes, built reinforced walls, placed covers and liners, and read about geosynthetics.  (more…)

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You remember Jill.  She is the philosophy major who is employed by an innovative mining company, MMC, to oversee risk management of the mining company’s geowaste facilities including the tailings, waste rock, and heap leach facilities. (more…)

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Underground is the essence of mining.  As a kid of perhaps ten-years old, my father took me a mile down a shaft of the mine where he worked as a mine captain.  Somewhat fearful, I followed him close into the vast space of metal that was the cage.  Down we sped to great noise for what seemed an eternity.  Water seeped and dripped and gushed everywhere.  All was wet.  At last we slowed, stopped, and the great metal doors clanged open.  We emerged into a great hall with dark-rock walls and soaring ceiling.  Everywhere there was metal: rails, ropes, tools, and cocopans. (more…)

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Browsing the web earlier this week I came across the site of the South African Department of Water Affairs.  There I found the following Best Practice Guidelines relevant to mine water management: (more…)

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On a series of flight to and from a distant mine, I read a great deal on the history and manufacture of the pencil.  The book I read is called The Pencil and is by Henry Petroski a professor of civil engineering at Duke University.  He writes regularly for the American Scientist; I follow his writings there and in his many other books on the design process in engineering. (more…)

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Management of mine waters is the topic of the day.  Conferences crop up like springs in a wet place.  Here are those I find for 2013.  There are probably many more being planned for 2014. (more…)

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Just received word of another conference on tailings to be held in 2013.  The new one is the First International Seminar on Tailings Management.  It is planned for 28 to 30 August in the Sheraton Hotel in Santiago, Chile.  (more…)

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