Metro connection Nordhavn

The contract included the design and construction of the twin-tube subway line between Østersøgade and the new Nordhavn subway station, lots CRNH 1. & 2.

The excavation of the two single-track tunnel tubes with individual lengths of 1,797 m and 1.596 m was carried out with an earth pressure supported TBM (EPB shield).
The drilling diameter of the machine was 5.79 m, the inner diameter of the completed tubes 4.90 m.

The tunnel boring machine was used to drive through both the excavation pit walls and the "Copenhagen Limestone" consisting of highly compacted silts with sand inlays.
For this purpose, the cutterhead of the TBM was equipped with disks, peeling blades and reamers.

Special measures were required when entering and exiting the target shaft in order to seal the machine against the excavation walls (overcut bored pile wall) at a groundwater pressure of up to 2.2 bar.

The tunnel tubes were lined with 30 cm thick reinforced concrete segments, which were produced in a precast plant and delivered to the construction site.

The construction project also included a 350 m long cut-and-cover tunnel and a 250 m long ramp.

The Nordhavn turnkey station was constructed using the cut-and-cover method. The "Krauseparken" shaft was also constructed as a service and emergency exit.

Joint venture:
Ed. Züblin AG (technical lead)
Hochtief AG (commercial lead)