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28 May 2019

Gongo Soco mine: another potential tailings dam failure in Brazil

In Brazil another tailings dam, at the Gongo Soco mine in BarĂ£o de Cocais to the east of Belo Horizonte, is at risk of failure due to a rock wall collapse.

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25 December 2018

Bureya River: a large landslide but not a meteorite impact in Russia

Bureya River: on 11th December 2018 a large landslide occurred in the Khabarovsk region of Russia. Speculation suggested it was a meteor impact. It wasn’t.

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12 October 2010

Slope Stability 2011

The website of the latest in an excellent set of Canadian conferences on slope stability and instability is now available at the following link: http://www.slopestability2011.ca/ The meeting will be held on 18th-21st September 2011 in Vancouver.  The focus is on  Rock Slope Stability in Open Pit Mining and Civil Engineering.  The call for papers is now out, with abstracts due by 31st December 2010.  This meeting serves as a nice aperitif to the …

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18 September 2009

Extraordinary! Using a helicopter sledgehammer to clear loose rock from a cliff!

I thought I had seen everything until I saw this video! It is from Norway, showing an extraordinary method for removing a loose rock pillar from a high, steep cliff. The answer is obvious – just hang a 1.8 tonne block on a cable under the helicopter and bash the offending rock with your new sledgehammer. This must take very skillful flying. The most amazing thing is that it worked …

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25 March 2009

Beichuan – photos of the aftermath of a natural catastrophe

This is the first of my series of photographic reviews of the earthquake affected area in Sichuan Province. The other sets are as follows:Part 1 (this part): Beichuan town Part 2: The Tangjiashan landslide Part 3: Hanwang town Part 4: The Mianyuanhe area Part 5: The Xingyiu area Thanks to my friends in the State Key Laboratory for Geohazards at the Chengdu University of Technology I have spent the last …

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8 March 2009

Rockslope stability – lessons from rock balancing

One of things that students often struggle to understand is the ability of slopes that appear to be extraordinarily unstable to remain standing for long periods. Take for example this site, taken from this site: You might (quite reasonably) ask how it is that some of the blocks on this slope can possibly remain in place through strong winds, heavy rain, snow, ice and rapid temperature changes. However, the combination …

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