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.

(WAVY) — The tunnel boring machine known as Chessie broke through ... in a statement. “Our TBM ‘Chessie,’ a 43.5-foot diameter Herrenknecht TBM, broke through the headwall to complete ...

MANILA — The Metro Manila Subway Project (MMSP) continues to gain traction as the Department of Transportation (DOTr) and Armed Forces of the Philippines (AFP) launched the operations of the tunnel ...

type TBM designed and assembled for Dubai Metro has a diametre of 9.56 metres, is 82 metres long and weighs 1,000T. The Cutter head will have a revolution speed of 0.1-1.82 rev/min. “The boring ...

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

QUEZON CITY, (PIA) — The Armed Forces of the Philippines (AFP) and the Department of Transportation (DOTr), and other key government officials and stakeholders on Thursday led the launching of the ...

VIRGINIA BEACH, Va. — After multiple delays, including a 9-month delay involving a century-old anchor, the Chesapeake Bay Bridge-Tunnel (CBBT) expansion achieved a major milestone as its tunnel boring ...

A year after starting from T. Nagar, the tunnel boring machine (TBM) ‘Pelican’, which was engaged for Chennai Metro Rail’s Phase II Project, has reached the Kodambakkam Metro station.

BEIJING, Dec. 17, 2024 /PRNewswire/ -- The tunnel boring machine (TBM) was invented more than 200 years ago for tunnel engineering. Over the past century, TBMs have been widely used to construct ...