Italiano
English 
Español A few numbers can illustrate the complexity of the work implemented by Trevi Spa for the Drammen-Kobbervikdalen high-speed line project: to date, a total of over 40,000 linear meters of drilling and over 12,000 linear meters of jet grouting have been carried out with different diameters: from 1,000 mm for the monofluid columns, to 2,500 mm for the bifluid columns executed in the “full face” zone.
