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Arch Coal changes highwall design after fatality

ARCH Coal has altered the way it designs mine walls after two separate accidents this year killed one miner and left another paralysed, prompting the US federal Mine Safety and Health Administration to call for changes.

MiningNews.Net
Arch Coal changes highwall design after fatality

Les Butts was paralysed in January when a boulder came off a wall section at the Black Thunder colliery and crashed into the truck he was driving. A second accident at the mine less than a month later...

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