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Øresund Tunnel, Copenhagen

Oresund Tunnel

The facts

Project Location: Copenhagen, Denmark
Client: Øresund Tunnel Contractors (ØTC) - a JV consisting of NCC (Sweden), Pihl & Son (Denmark), Dumez-GTM (France), Laing (UK), and Bos Kalis (The Netherlands)
Start Date: 1995
Completion Date: 2000
Contract Type:  Design and Build
Procurement method: Competitive tender
Capita Symonds contacts: Colin Gray - Project Director, Richard Lunniss - Project Director
Project Construction Value: £450m
Services provided:

  • Tender, preliminary and detailed design of all civil works.
  • Conceptual design of M&E systems and design review of the detailed design produced by the M&E sub-contractor.
  • Tender, preliminary and detailed design of the architectural fit out of services buildings.

The project

The tunnel is part of a 16km long high speed rail and road link between Denmark and Sweden that crosses the Øresund.  The tunnel carries a twin-track railway and a dual carriageway road under one of the Øresund’s two navigation channels and has an enclosed length of 4 km. 

It comprises:

  • An artificial peninsula on the Danish coast incorporating a ramp structure, portal, cut and cover tunnel and a service building.
  • A 3.5km long immersed tunnel made up of twenty concrete elements
  • An artificial island located between the two navigation channels, providing a transition to the adjacent high level bridge section of the link.  The island incorporates a ramp structure, portal, cut and cover tunnel and service building.

For the substantial portal structures, three principal forms of water-excluding construction were used:

  • Cut-and-cover tunnels
  • Gravity U-box structures
  • Anchored U-box structures - approximately 2300 ground anchors were installed.

Mechanical and electrical systems within the tunnel include longitudinal ventilation, pumped drainage, fire fighting, lighting and control and communications.

Capita Symonds were responsible for:

  • Tender, preliminary and detailed design of all civil works
  • Conceptual design of M&E systems and design review of the detailed design produced by the M&E sub-contractor
  • Tender, preliminary and detailed design of the architectural fit out of services buildings
  • Design support to the contractor during construction

Awards

  • British Construction Industry International Award 2000