Success with the underground tramway in Karlsruhe
On 7 September 2015 at 10.30 a.m., it finally arrived. The tunnel-boring machine named “Giulia” had penetrated the last seal wall with its cutting wheel measuring 9.3 m in diameter, and had thus successfully completed its approximately 2.1 km journey from east to west under the centre of Karlsruhe.
On 7 September 2015 at 10.30 a.m., it finally arrived. The tunnel-boring machine named “Giulia” had penetrated the last seal wall with its cutting wheel measuring 9.3 m in diameter, and had thus successfully completed its approximately 2.1 km journey from east to west under the centre of Karlsruhe.
Despite occasional hold-ups and unexpected obstacles to overcome in the boring process, it has thus been possible to keep to the schedule for the tunnelling operation, involving almost 6,000 lining segments, which started on 17 November 2014.
In the centre of Karlsruhe, the rail-mounted public transport system has been undergoing a reorganisation since 2010 as part of a combined solution. The central measure in this reorganisation is the relocation of the tramline from the pedestrian precincts in Kaiserstraße and Marktplatz into a tunnel with various underground stops (“underground tramway”).
KREBS+KIEFER is responsible for supervising all the construction measures in the first construction phase of this joint venture (tunnel under Kaiserstraße).
