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TBM-assembly started

12 May 2016

The first TBM is already being assembled inside the big assembly chamber.

Last week the cutterhead and several big parts of the first TBM was transported down the 1 km long adit tunnel, to the big assembly chamber. It is in this chamber the two northbound TBMs is constructed. In a similar chamber the southbound TBMs will be assembled.

This first TBM is painted in Oslo-blue colour and is planned to start the excavation towards Oslo in September 2016. It will excavate about 9 km of solid rock on it journey towards Oslo. On an average day the TBM is planned to excavate about 12-15 m tunnel.