A large-diameter tunnel boring machine (TBM) with a record-breaking excavation diameter of 16.64 meters rolled off the production line in Changsha, Central China's Hunan Province on Thursday.

CHANGSHA -- China's self-developed tunnel boring machine with the biggest diameter has been rolled off the production line on Thursday. The machine, with a maximum excavation diameter of 16.64 ...

HAMPTON, Va. — On April 17, Mary the Tunnel Boring Machine emerged through the headwall at the Hampton end of the HRBT. Exactly six months later, she's starting her next journey: creating the ...

Mary, the tunnel-boring machine, is on the move again! Thursday, Mary began boring a twin eastbound tunnel in part with the Hampton Roads Bridge-Tunnel Expansion Project. Watch: First of 4 ...

"See your German company which is supplying us some tunnel boring machines, which they are making in China…but China is not allowing them to sell it to India…We should stop buying German equipment now ...

Piyush Goyal told German Vice Chancellor Robert Habeck that India will stop buying tunnel boring machines from Germany if China blocks sales like they did Union Commerce and Industry minister ...

Pablo Macias Torres, a Ph.D. student, firing up the wind tunnel. It is understandably difficult to monitor the internal workings of a wild bird while it is soaring thousands of feet in the air.

China has completed the production of its largest tunnel-boring machine (TBM), measuring 16.64 meters (54.5 feet) in diameter. The machine is named Jianghai, which means "river and ocean" in Chinese.