BMG GmbH & Co. KG - Keithstrasse 2-4 - D-10787 Berlin | Tel: +49 (0)30 2100220

PDB 71

Construction Project
Municipal Railway Dortmund, Contract section K4
Location
  • Dortmund
Client
  • City of Dortmund
Planning
  • Metropolitan Railway Construction Office of the City of Dortmund
Investment volume
  • approx. 13.6 million EUR
Construction time
  • 24 Months
Activities
  • Construction management
  • Contract management
  • Technical coordination
Structures constructed
  • Tube 1 - 436 m (2x)
  • Tube 2 - 250 m
  • Tube 3 - 240 m
Special features
  • Utilization of hydraulically driven local section machine
  • Tunnelling using New Austrian Tunnel construction method, making use of reasonable cross-section breakdowns
  • Tunnelling of track change with excavation cross-sections of 36 to 140 m² with a small sized cover between tunnel roof and surface
  • Cross-section height of track change 18.00 m
  • Restriction of the settlement to 25 mm
Utilization
  • Metropolitan railway tunnel of the City of Dortmund
Construction
  • Driving of the tunnels in partial cross-sections
  • Securing of the tunnel embrasure using lining arches, concrete reinforcement steel mats and spray concrete
  • Installation of a tunnel inner shell using concrete impervious to water
Geology
  • Fills, sands, silts and weathered clay
  • Unweathered, rock-hard clay
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Tel: +49 (0)30 2100220
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