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

Work to begin digging a new Hudson Tunnel is set to begin this spring as two tunnel boring machines custom-built for the project are on their way to New Jersey. The new rail tunnel, called the Gateway ...

The projects aim to prepare a stable path for tunnel boring machines that will excavate the new two-track tunnel under the Hudson River. Challenges include navigating varying geological conditions, ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min The eight-year-old company has ...

HAMPTON, Va. — With a loud groan, and cheers and applause from a crowd of onlookers, Mary, the tunnel-boring machine, broke through onto the south island of the Hampton Roads Bridge Tunnel Wednesday ...