TUNNELS

In the seventies, Etesco pioneered the introduction in Brazil of tunnels execution technology for mechanized means using shield equipment with TBM machines, having also designed and built some specific equipment to its needs, with diameters from 1000 to 3400 mm.

In the seventies, Etesco pioneered the introduction in Brazil of tunnels execution technology for mechanized means using shield equipment with TBM machines, having also designed and built some specific equipment to its needs, with diameters from 1000 to 3400 mm.