By Rose Bell
The Blix tunnel, which is currently the longest railway tunnel in the Nordics, is handed over to Bane NOR by Acciona Ghella (AGJV), a joint venture. The first long Norwegian railroad tunnel to feature two distinct tunnel tubes, the tunnel connects 20 kilometers of the Follo Line. The tunnel will cut travel time between Oslo and Ski in half and improve train service.
The Blix tunnel, which will be a substantial connection in the InterCity advancement southeast of Oslo, has been planned and constructed by Acciona and Ghella for Bane NOR. The work that has been going on for seven years comes to an end. The plan says that the tunnel will open to traffic in December 2022.
Reduces trip time by half.
The train capacity between Oslo and Ski will double with double tracks and a top speed of 250 km/h. Additionally, it will cut travel time between Oslo and Ski from 22 minutes to 11 minutes.
The emissions of CO2 have been reduced by 27,000 tonnes
In the project, the joint venture AGJV has purposefully worked to reduce CO2 emissions. The joint venture has reduced CO2 emissions by more than 27,000 tonnes by adopting world-leading technology, innovative solutions, and effective collaboration with local partners.
Technological advancement
Four large, double-shielded hard rock tunnel boring machines (TBMs) were used on the Follo Line, which was the first Norwegian tunnel project to use them. The TBMs have made it possible to construct two distinct tunnel tubes that are excavating from four distinct points. Both of these tubes have a length of 19.5 kilometers and a diameter of 9.9 meters. Acciona and Ghella worked together to develop the TBMs for this particular project.
