More From tunnel-boring

Excavation stopped on Big Bertha repair pit due to major ground sinkage in area

Excavation stopped on Big Bertha repair pit due to...

Posted by Wayne Grayson on Dec 15, 2014

The latest in a long string of delays to affect tunnel-boring machine Big Bertha has far greater implications than any of the ...

PHOTOS: Amazing images of subway construction in the man-made caverns below New York City

PHOTOS: Amazing images of subway construction in the...

Posted by Wayne Grayson on Apr 07, 2014

Back in June we showed you a handful of pictures from deep below New York City. And while they depicted ...

Subway expansion in Delhi to set record with simultaneous use of 34 tunnel-boring machines

Subway expansion in Delhi to set record with...

Posted by Wayne Grayson on Jun 28, 2013

Seattle might have the world's largest tunnel-boring machine, but Delhi, India will soon have a record-setting host of the machines ...

Caterpillar to layoff 300 at mining facility in Illinois, close tunneling plant in Toronto

Caterpillar to layoff 300 at mining facility in...

Posted by Wayne Grayson on May 06, 2013

In the wake of a first quarter that saw profits tumble 45 percent, mostly due to low demand for mining ...

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