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.

China on Wednesday deployed a giant self-developed tunnel boring machine (TBM) for the construction of the world's longest underwater highway TBM tunnel. The new machine, named "Jianghai," has a ...

A novel tunnel boring machine (TBM) will open up Bokoni’s ... while Master Drilling has focused on attaining a rectangular cut profile instead of a circular one. Both approaches are aimed ...

Explore the engineering marvel that is Martina, the world’s largest tunnel boring machine, and its incredible capabilities. Watch as this giant TBM digs through complex geological layers ...

China has completed the production of its largest tunnel-boring machine (TBM), measuring 16.64 meters (54.5 feet) in diameter ...

all three levels of the tunnel boring machine were exposed after removal of more than 1,500 tonnes of silt and broken machine parts. According to Arvind Kumar, special chief secretary, of disaster ...

A tunnel boring machine (TBM) has completed excavating a second bore of the 5-mile-long Northolt Tunnel for the HS2 ...