The choice of the tunnel system for modern railway tunnels depends on a variety of factors, including traffic composition and traffic volume, cost, maintenance and safety. They are equipped with ventilation systems, slab tracks for higher operating speeds, smoke extractions systems, etc.

Technology applied in underground construction has advanced significantly in the past decades making  challenging geological subsoil conditions feasible to deal with.
Railway tunnels built more than one hundred years ago as pioneering achievements struggle to comply with the present regulations and standards. This inevitably leads to the necessity  to refurbish these to ensure these structures remain in service. Also impacting the continued use of existing tunnel structures are new or different rolling stock which may demand higher clearance profiles, as well as implementation of higher standards for passenger rescue and evacuation. Last but not last logistics solution are necessary to ensure traffic is maintained during the works avoiding significant impact on the public and the environment. 

Our expertise in railways

Project management from planning to maintenance

The Gotthard Base Tunnel

Amberg Engineering Ltd. has many years of experience in all types of soft ground tunnel construction, both conventional and with tunnel boring machines.

We have gathered our knowledge by building underground railways all around the world and deepened it by closely co-operating with research groups and the industry. This enables us to select the right technology for the particular local requirements.

Our experts work with the most appropriate tunnelling methods, select the correct lining and deliver the optimum alignment. In addition, we develop safety concepts and emergency planning, and design the ventilation for railway tunnels and stations.

Signature projects include the Gotthard Base Tunnel, the Semmering Base Tunnel, Lyon Turin TELT base tunnel, the Brenner Base Tunnel, the Ceneri Base Tunnel, Follobanen, and many more.

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