If the TBM(Tunnel Boring Machine) is like a "dragon beneath the earth", then the operator is the "dragon tamer". The Tianshan TBM machine is over 280 meters long and weighs more than 2,800 metric tons. It's made up of dozens of systems and tens of thousands of components, and its operation requires millimeter-level precision. Running it demands not only professional skills, but also a strong sense of responsibility.

Cui Huaxin, operator of the Tianshan tunnel boring machine, China Communications Construction Company