Düsseldorf / Schwanau, Germany, December 15, 2011. The state capital Düsseldorf, represented by the Department of Economy, Transport and Traffic, invested in the new Wehrhahn Line and the expansion of eco-friendly public transport. The new 3.4km-long underground metro line will run from Wehrhahn to Bilk station in downtown Düsseldorf. Mechanized tunnelling works at the Wehrhahn Line jobsite have been successfully completed on December 14, 2011.
Systems provided by the navigation and guidance system experts VMT and the Herrenknecht separation plant, set up in Bilk by »Elisabethstraße« ensured smooth jobsite operations. Despite the high abrasivity of the ground, the separation plant could reach high plant availability levels in the mostly gravelly and sandy soils. Concrete segments were produced using moulds manufactured by Herrenknecht Formwork. Maschinen- und Stahlbau Dresden (MSD) delivered the segment crane and handling equipment. More than 12,000 of the 6.5t segments have been produced and installed by the TBM in the tunnel tube.
The TBM with a total weight of 1,302 tonnes reached the target shaft at a depth of 17 meters on December 14, 2011 after completion of the second 955m-long tunnel section between »Corneliusplatz« and »Wehrhahn«. Mayor, Dirk Elbers and the godmother of the tunnel, Astrid Elbers, as well as numerous interested citizens welcomed the TBM and tunnel crew.