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Tunnelling

 

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The Semmering Base Tunnel: powerful and future-oriented

6 August 2015 | By Gerhard Gobiet, Project Manager at ÖBB-Infrastruktur AG

The Semmering Base Tunnel is one of the most important long-term large-scale infrastructure projects in the Austrian and European high-capacity route network. Through the 27.3km-long tunnel between Gloggnitz and Mürzzuschlag, a sustainable investment is being made in both Austrian and international rail transport. In the long-term, the Semmering Base Tunnel…

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Ceneri Base Tunnel: the logical continuation in the south

6 August 2015 | By Marco Ceriani, Chief Construction Officer of AlpTransit Gotthard Ltd

The NRLA Gotthard Axis comprises of the Gotthard Base Tunnel and the 15km-long Ceneri Base Tunnel. The two single-track tubes of the Ceneri Base Tunnel are complemented by branch-off structures to allow additional traffic connections. So that the ambitious time schedule can be met despite difficult geological conditions, work on…

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The Fehmarnbelt Tunnel: From vision to reality

7 April 2015 | By Johnny Restrup-Sørensen, Contract Director, Railway at Femern A/S

The Fehmarnbelt Tunnel will become the world’s longest immersed tube tunnel for combined road and rail traffic. It will provide a double-track railway and four-lane highway connection between Puttgarden on the German island of Fehmarn and Rødbyhavn on the Danish island of Lolland. After years of detailed investigations, the planning…

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Last sleeper laid in the Gotthard Base Tunnel

4 November 2014 | By AlpTransit Gotthard Ltd

On Wednesday 31 October 2014, the last rails were laid in the Gotthard Base Tunnel. At a distance of around 54m from the south portal, the contractor cast the "golden sleeper"; a big moment for everyone involved and an important milestone for the project...

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Constructing the complicated Hallandsås Tunnel

18 September 2014 | By Ulf Angberg – Communications Manager for the Hallandsås Project at Trafikverket

Following many years of troublesome construction work, both rail tunnels through the Hallandsås Ridge in Southern Sweden were completed ain 2013. Initiated back in 1992, the construction project has generated more headlines in the Swedish media than any other. Ulf Angberg – Communications Manager for the Hallandsås Project at the…

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The Brenner Base Tunnel – A railway line for the future

5 August 2014 | By Konrad Bergmeister, CEO at BBT SE

The construction of the 64km-long Brenner Base Tunnel (BBT) is in full swing. After the completion of three construction lots in Italy and Austria with an investment of €550 million, the next construction lots are on the way. Konrad Bergmeister, CEO at BBT SE – the company tasked with construction…

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Norway: The new Ulriken Tunnel – drill and blast or TBM?

4 June 2014 | By Hans-Egil Larsen, Project Manager at Jernbaneverket

The line between Arna and Bergen in Norway is one of the most heavily trafficked sections of single-track railway in Europe, with approximately 130 trains passing daily. This section is a bottleneck for rail traffic to and from the station and freight terminal in Bergen. The Norwegian National Rail Administration…

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Leipzig’s new city tunnel – the backbone of a new network

11 April 2014 | By Oliver Mietzsch, General Manager, Greater Leipzig Railway Authority Association (ZVNL)

On 15 December 2013, the Leipzig City Tunnel was opened for commercial service. Despite some delays in completing the new underground infrastructure which ended up costing double the initially planned €450 million capital investment, statements from industry-officials made during an opening ceremony were full of pride about the completion of…