Tunnel engineering

Tunnels connect people with places and services. Ramboll’s skilled team of Tunnelling Engineers work on micro to macro scale projects worldwide. We offer multidisciplinary services with unparalleled knowledge of immersed tube tunnels (IMT) and hard rock tunnels. Our expertise encompasses tunnels for metro systems, railways, roads, cyclists, pedestrians and utilities.

Tunnel engineering. Ramboll


Richard Miller. Ramboll

Richard Miller

Director Ground Engineering & Tunnelling
T: +44 7436 269130

Tunnelling capabilities

Ramboll adds value at every stage of a tunnelling project, providing advice on discrete phases or to the whole scheme. We offer a one-stop shop from environmental impact assessment through geophysical site investigation, design initiation and refinement, tendering, contract management and supervision to asset management.

Our tunnel engineers draw on multiple data sources, including geophysical, geotechnical, groundwater and environmental, to derive structural designs from preliminary concepts. They augment the structural plans with tunnel ventilation designs and strategies for fire safety and the installation of mechanical and electrical components. Rigorous preliminary investigation and continuous monitoring are often crucial to project success.

Ramboll’s multidisciplinary team provides high-quality solutions for all types of underground structures. Our specialist skills include tunnelling under and close to existing structures, providing permanent diaphragm walls and using a range of top-down and bottom-up methods. We offer clients a bespoke range of tunnel-related services, tailored to suit the requirements of each design.

Asset management

Ramboll’s comprehensive tunnelling experience enables us to provide a full range of asset management services, including:

  • Service life design
  • Inspections, surveys, non-destructive testing and laboratory analyses
  • Damage evaluation, rehabilitation strategies and supervision
  • Cathodic protection systems
  • Tunnel asset management and monitoring systems

Web-based management system

We apply our innovative SMART web-based infrastructure management system to tunnel assets. SMART incorporates overview and monitoring data with long-term performance-based maintenance. The system enables us to manage the condition of tunnel assets, implement activities and ensure continued functionality. We undertake routine and periodic tunnel inspections using supervisory control and data acquisition systems.

Ramboll leads industry practice in IMT design, such as for the record-breaking 18km Fehmarnbelt Tunnel between Denmark and Germany. The tunnel will be more than three times longer than the current longest IMT.

Our tunnel services

Related projects

Engineers discussing the Fehmarnbelt tunnel

Fehmarn: The world's longest road/rail tunnel

In the future Scandinavia and the rest of Europe will be connected by the world's longest road and rail tunnel.

Malmö citytunnel

Malmö City Tunnel

The City Tunnel Project called CTP was established as a project organisation under Banverket and included a twin tube railway tunnel, emergency access shafts, Triangeln station, ramp and C&C tunnel in Holma.

E 18 rock tunnel in Norway

E18 Grimstad-Kristiansand

Ramboll is engaged as the main consultant on the stretch of the new E18 motorway between Grimstad and Kristiansand. The new motorway will significantly improve the Norwegian infrastructure and will improve living conditions for local communities living along the existing road.

Ramboll is responsible for planning and design of the stretch of tunnel from Söder Mälarstrand to Södra Station on the Stockholm City Line and for designing tunnel ventilation, general ventilation as well as smoke and heat ventilation.

The Stockholm City Line: Efficient travel across the city

Ramboll is giving expert advice in how to build a railway tunnel, and how to improve the punctuality and the frequency of future rail traffic in Stockholm.

Øresund bridge

The Øresund Link

The Øresund Link connects the Danish capital Copenhagen with the city of Malmö in southern Sweden by a four lane motorway and a two track electrified railway for high speed (200 km/h) passenger services as well as freight trains.

Orientkaj Station will be one of the new metro stations in Nordhavnen

Nordhavn Metro Extension

Ramboll, in a joint venture with Arup and with architectural firm COBE as sub-consultant, is the planning advisor for the Nordhavnen Metro extension in central Copenhagen.

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240 Blackfriars Road
London SE1 8NW
United Kingdom
Tel: +44 20 7631 5291
Fax +44 845 299 1610

Mail: london@ramboll.co.uk

Company registration

Company registration

Ramboll UK Limited. Registered in England & Wales. Company registration no. 03659970. Registered office: 240 Blackfriars Road, London SE1 8NW

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