Through the Alps at 1.4 metres a day
future European rail network,” says Erwin Scherer, Global Head Tunnelling at Implenia. Implenia was commissioned by TELT (Tunnel Euralpin Lyon Turin) in 2021 to build Lot 3 together with joint venture partners NGE, Rizzani De Eccher and Itinera SpA. “This type of construction project allows us to demonstrate [...] m long tubes in the direction of Italy, along with 11 safety crossings and 140 m of cut-and-cover tunnel. Preparatory work, which began in November 2021 and lasted about a year, is already complete. A concrete mixing plant and water treatment plant have been installed, as well as 794 jet grouting columns[...]