Tunnel Groene Hart

The tunnel Groene Hart is part of the HSL-Zuid high speed railway line, and consists of a bored tunnel and access ramps.
simulation showing how the Groene tunnel will be built

Project description

The total length of the tunnel including access ramps is approximately 8.6 km. The bored tunnel consists of one tube with an inner diameter of 13.3 m and is 7.2 km long. For safety reasons three emergency shafts are implemented in the alignment and a central wall separates the two tracks. The emergency shafts are constructed as circular construction pits with an inner diameter of 30.2 m and a depth of 40 m. These pits are made with diaphragm walls and an underwater concrete slab. The final concrete structure is constructed inside this pit. The access ramps consist of an open and closed part as well as a technical building and entry or exit shaft for the TBM.

Scope of work

Detailed design of access ramps and emergency shafts: construction pits and concrete structures. In the detailed design a special topic was the dynamic effects and specific requirements related to the high speed railway.

Project facts Tunnel Groene Hart

  • Client
    Bouygues Koop Consortium
  • Project duration
    2000 - 2004
  • Country
    Netherlands
  • Project phase
    Design completed end 2002
  • Location¬†
    Leiderdorp
Jeroen de Leeuw  - Project manager and specialist bored tunnels

Jeroende Leeuw

Project manager and specialist bored tunnels