On a flat, windswept green plain north of Hamburg in the state of Schleswig-Holstein, Germany, a Herrenknecht tunnel boring machine is now 200 meters deep into burrowing under the Elbe River estuary.
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 ...
MUMBAI: Three massive Tunnel Boring Machines (TBMs), essential for building the underground section of the Mumbai–Ahmedabad bullet train corridor, are stuck at a Chinese port and could potentially ...