The HRBT Expansion Project reached a significant milestone on Jan. 14 as the final piece of Mary the Tunnel Boring Machine's ...

Deep under the Yangtze River, a stranded tunnel boring machine that looked like a sunk cost has instead become a showcase of ...

DC Water took a major step Tuesday in the Potomac River Tunnel Project, lowering the cutterhead for ‘Mary,’ the tunnel boring ...

A colossal project to reduce traffic in the underground tunnels connecting the Virginia cities of Norfolk and Hampton just had a big breakthrough — literally. Since 1957, the two cities have been ...

In rendezvous beneath the Yangtze River, a multimillion-dollar tunnel boring machine meets its stalled twin with just 2mm of ...

Recent advancements in rock cutting and tunnel boring machine (TBM) performance have underscored the importance of optimising cutter design, operational parameters and understanding rock fracture ...

The Gateway Development Commission marked a major milestone for the Hudson Tunnel Project, announcing at its Dec. 15 board meeting that manufacturing and factory testing of the first two tunnel boring ...

The study of disc cutter wear in tunnel boring machines (TBMs) is fundamental to optimising both the economic and operational performance of subterranean construction projects. Disc cutter wear ...

The first four tunnel boring machines are coming to New Jersey to build the Gateway rail tunnel. Here's what they do and why they're the safest method.

Chennai: Chennai Metro Rail Limited (CMRL) achieved a key milestone in its Phase 2 expansion with the successful breakthrough of tunnel boring machine.

Chinese engineers have managed to turn disaster into a masterful engineering feat by rescuing a stranded tunnel boring ...