Tunnelling,
Topics and projects
Second tube Gotthard Tunnel: first tunnel boring machine "Carla" at target
covered about 17 m per day. Her record performance is 45.4 m per day, achieved in rather soft gneiss. Tunneling is teamwork "It's great that we were able to excavate the northern access tunnel on schedule and, above all, without any significant accidents," says Jacopo Cheda, Senior Construction Manager [...] of several companies and colleagues from many nations, has a great deal of experience and works in a highly professional manner. Together, we were able to successfully master the technical challenges and achieve this important milestone without incident. The team put in a great performance." Where to[...]