A tunnel-boring machine stalled beneath China’s Yangtze River while excavating a highway tunnel, forcing engineers to complete an unprecedented mid-river docking operation over two years.

Deep under the Yangtze River, a stranded tunnel boring machine that looked like a sunk cost has instead become a showcase of how China turns engineering setbacks into proof of technical control. What ...

Seven months after beginning its journey, Elaine the tunnel boring machine has completed its subterranean mission drilling out the Northside Interceptor Tunnel (NSIT). The 16.5-foot diameter, ...

The 14.25-kilometer Chongming-Taicang Yangtze River tunnel — featuring three vertical shafts and connects Shanghai's ...

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.

China's domestically developed, world's largest-diameter vertical shaft boring machine 'Qiming' was officially put into ...

India's longest rail tunnel, stretching 14.57 km between Devprayag and Janasu in Uttarakhand, has seen the light of the day due to the perseverance of two tunnel boring machine operators who worked ...