The works concern the construction of 4 stations (ERB, GAB, NEL and OUK) with perimeter wall consisting of secant piles of 1.200 mm diameter placed at a centre-to-centre distance of 900 mm and depths ranging from 24 to 29 m. The piles were installed in silty soils down to 8-10 m and then in Copenhagen fractured limestone where, despite the presence of rock, they were completely casing.
The Clients particularly appreciated the execution within the scheduled contractual times and the high quality of the works.