German-based TBM manufacturer is progressing on a challenging dig under the Elbe River estuary, and expects further tunnel ...

Here's how the tunnel boring machine, or TBM, works: As the 200-ton TBM moves forward, a round cutter head studded with titanium teeth grinds into the tunnel face and splits large chunks off the rock.

Embark the world of colossal engineering with 11 of the most monstrously powerful machines ever built! This video showcases the giants that dominate industries ranging from space exploration to heavy ...

when I came across this cool photo of Seattle’s tunnel-boring machine, currently under construction in Japan. When it’s finished, it will be the world’s biggest, and will be used to dig the SR 99 ...

Once completed, the Tonnelle Avenue site will have one of the shafts to launch two tunnel boring machines that will ... One of the first construction projects associated with the $16 billion ...