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Tunnelling

 

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Turkey’s Marmaray Project: a 153-year-old dream becomes reality

11 April 2014 | By Süleyman Karaman, Director General and Chairman of the Board, Turkish State Railways (TCDD)

On 29 October 2013, an inauguration ceremony took place in Turkey to mark the opening of a rail tunnel beneath the Bosphorus, connecting the European and Asian sides of Istanbul. Part of the wider Marmaray Project, this rail connection is built 60m below sea level and is the world’s deepest…

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The Liefkenshoek Rail Link – part of a strategy for capacity

12 February 2014 | By Luc Lallemand, CEO, Infrabel

Infrabel, the Belgian rail infrastructure manager, is now busy with the final work on the track for the Liefkenshoek Rail Link. The works for this direct rail link between the left and right banks in the Port of Antwerp are well on schedule, and the new railway infrastructure will be…

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Steady construction continues on the new Koralmbahn

12 February 2014 | By OBB-Holding AG

The Koralm Railway (or Koralmbahn) is a new double-track line approximately 133km-long that will run between the Austrian cities of Graz and Klagenfurt and is part of the Baltic-Adriatic Axis which connects the Baltic Sea with the ports of the upper Adriatic. At the heart of the new railway line…

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The Swiss traffic transfer policy gains ground

1 August 2013 | By Peter Füglistaler, Director of the Federal Office of Transport (FOT), Switzerland

One of the principal aims of Swiss transport policy is to transfer transalpine freight traffic from road to rail. This is why Switzerland has built the new flat-bed rail tunnels through the Alps and introduced a road charge for heavy goods vehicles. In order to further support this development, the…

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Gotthard and Ceneri base tunnels on target

1 August 2013 | By Renzo Simoni, CEO, AlpTransit Gotthard Ltd

Work on the Gotthard and Ceneri base tunnels is on course. In the Gotthard Base Tunnel between Erstfeld and Sedrun, the ballastless railway track has been laid in both tubes. In total, 45% of the railway infrastructure systems have been installed. A pilot operation between Faido and the south portal…

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CROSSING BORDERS: The Fehmarnbelt Fixed Link

23 May 2013 | By Johnny Restrup-Sørensen, Contract Director – Railway, Femern A/S

The Fehmarnbelt Tunnel will connect Denmark and Germany with a two-track railway and a four-lane motorway underneath the Fehmarnbelt. With a total length of approximately 18km, it will be the world’s longest immersed tunnel for combined rail and road traffic and will help bring people, businesses and culture in the…

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Brenner Base Tunnel construction continues as expected

19 September 2012 | By Konrad Bergmeister, CEO, Brenner Basistunnel BBT SE

Construction of the 64km-long Brenner Base Tunnel is in full swing. Two sections of the exploratory tunnel are completed, the access tunnel in Mules now connects the exploratory tunnel with the surface, and two more logistic tunnels are ready for use. The Brenner Base Tunnel (BBT) is a straight, flat…

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Swiss rail construction projects on track – in cities, through the Alps and across borders

1 August 2012 | By Philippe Gauderon, Head of SBB Infrastructure and Raffael Hirt, Communications Manager for the Zurich Cross-City Link, SBB Infrastructure

Throughout 2012, SBB Infrastructure is undertaking a number of construction projects across Switzerland: in the two largest Swiss cities, Zurich and Geneva, in the St. Gallen and Schaffhausen conurbations, in the canton of Ticino, in the Alps, and even beyond Switzerland’s borders. This article presents an overview of the major…

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Gotthard railway systems now being installed and the Ceneri is on course

1 August 2012 | By Renzo Simoni, CEO, AlpTransit Gotthard Ltd

Since the second final breakthrough on 23 March 2011, fitting-out of the Gotthard Base Tunnel has made rapid progress, and since September 2011, installation of the railway systems has been taking place from the north. Elsewhere in the Ceneri Base Tunnel, work has begun on the main drives from the…

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2012: the most exciting year yet for Crossrail

11 April 2012 | By Andy Mitchell, Crossrail Programme Director

2012 is going to be the most exciting year yet for the £14.8 billion Crossrail project with construction moving up a few gears as we enter our tunnelling phase. The year has started with great expectations and excitement for the project not just within Crossrail but also amongst Londoners who…

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Driving under the Gotthard complete and the Ceneri is on course

4 August 2011 | By Renzo Simoni, CEO, AlpTransit Gotthard Ltd

On 23 March 2011, between Faido and Sedrun in Switzerland, miners excavated the last metres of rock of the Gotthard Base Tunnel. Both single-track tubes are therefore now continuously bored over their full length of 57 kilometres. In the Ceneri Base tunnel, the main drives from the Sigirino intermediate heading,…

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Tunnelling for and into the future of European railways

17 September 2010 | By Prof. Dr.-Ing. Alfred Haack, Past President of ITA – International Tunnelling and Underground Space Association and former Executive Board Member of STUVA – Research Association for Underground Transportation Facilities

The remarkable volume of tunnelling on a worldwide basis during the last two or three decades (see Figure 1) is not defined by the demands to improve the railway networks in many countries. Stimulation in this direction is especially given by the generally highly ranked socio-political requirement of improved mobility…