Technical Assistance for TBM start-up and jobsite logistics
2023 | ONGOING
The E6 project is part of a major undertaking by the City of Oslo Municipality to provide water supply security through a new clean water tunnel from Holsfjord, west of the capital, and an underground treatment plant at Huseby. At present, a single water source and one treatment plant supply around 90% of the capital.
The AF Gruppen and Ghella joint venture will build the water distribution network between Huseby, Oset and Stubberud in Oslo. A 7 m diameter tunnel, approximately 11 km long, will be drilled by a double shield hard rock TBM and 7 km of secondary tunnels will be excavated by drill and blast.