Technical specifications

Scope of work 
Conversion of the dead-end station at Zaventem Airport, Brussels, into a through station;
connection of the station to the new high-speed railway line from
Brussels to Antwerp by means of approx. 5,600 m of tunnel

  • 2 TBM-driven tunnels
  • Length: approx. 1.1 km each,
  • Internal diameter 7.30 m
  • Approx. 1.1 km of tunnel built using the top-down method
  • Approx. 2.3 km of cut and cover tunnel
  • Construction of additional accesses and exits for the E19 motorway
  • Refurbishment of an existing motorway bridge ad addition of a new bridge for cyclists
  • Construction of a fly-over

Construction method

  • TBM tunnelling using a Mixshield (slurry shield)
  • Shield diameter: 8.27 m
  • Segmental lining, 25 cm thick
  • Top-down method
  • Cut and cover method

Geology
Sand with beds of sandstone in the rock area

General data

Project 
Diabolo Project
single-track railway tunnel

Client

  • Northern Diabolo nv
    (PPP company for the railway tunnel)
  • Via-Zaventem nv
    (PPP company for the road construction part)

Contractor
Wayss & Freytag Ingenieurbau AG
in a joint venture

Construction period 
October 2007 to February 2012

Construction costs
€ 333 million

Utilisation
Infrastructure
Type
Railway tunnel, single-track
Length
2 * 5,600 m
Construction Method
TBM tunneling using a Mixshield (slurry shield)

Related Projects
New Culvert Brunsbüttel Lock
New Culvert Brunsbüttel Lock
Germany

Increase in the shipping capacity of the Kiel Canal (Nord-Ostsee-Kanal): Pipe jacking for a pipeline tunnel 35 m below ground during ongoing lock operation.

Read more
Crossrail Western Tunnels
Crossrail Western Tunnels
Great Britain

Railway tunnel and stations for the London railway system in one of the most advanced railway projects in Europe.

Read more
Katzenberg Tunnel
Katzenberg Tunnel
Germany

Parallel drive with two TBMs with EPB shields for the extension of the Karlsruhe – Basel motorway.

Read more

Cookies Policy

Our website uses cookies to improve your experience. Certain cookies can contain personal information. We deactivate Cookies, unless you allow Cooky usage.
Additional information

Allow Cookies
Do not allow cookies
Cookies Settings