Nowadays tunnels represent elements of an economic and ecological infrastructure. To ensure that tunnels are kept in the best possible state and to cope with ever increasing volumes of traffic, refurbishment measures as recently carried out at the Rendsburg Canal Tunnel are essential. Three construction phases involved measures for repairing the concrete on the floor and the walls, fire protection, road construction, and drainage.The refurbishment also includes rescue and evacuation facilities and technical installations.
Multiple fault zones, variable face conditions and squeezing ground requiring extensive bypass tunneling: These were just a few of the challenges overcome in order to successfully complete Turkey’s...
The Albula Tunnel opened in 1903 belonging to the Rhaetian Railway (RhB) is 5.8 km long with a single track. A new parallel tunnel is now to be built 30 m away from the existing one owing to damage to...
Some 2100 l of water flows out of the tunnel per minute at the north portal of the Vereina Tunnel in the Swiss Canton of Graubünden. The energy potential of this water which has a temperature of 17 °C is now to be exploited for the geothermal generation of power using a heat pump.
The engineering and services group Bilfinger has won an order in the Norwegian city of Stavanger for the construction of the Eiganes Tunnel which will significantly reduce the volume of traffic in the...
In July a new phase has begun in the construction of Stuttgart‘s underground railway station as political and business representatives celebrated commencement of construction of the Filder Tunnel. The construction contract for the Filder Tunnel and the connecting tunnel Ober-/ Untertürkheim was awarded to a joint venture led by the Porr Group. The contract has a volume of around 700 million euros.
Femern A/S has now selected the group of firms and consortia that are pre-qualified for the contracts for the Fehmarnbelt tunnel’s electrical and mechanical installations as well as the...
The 19.8 km long Simplon Tunnel (completed in 1922) between Bries (Switzerland) and Iselle (Italy) possesses two single-track bores with two sets of points at the centre of the tunnel and...
Systemair has been selected by the DMRC (Delhi Metro Rail Corporation) as a supplier of tunnel fans and additional equipment to the extension of the subway in Delhi. The total order value amounts to...
The Swiss Federal Supreme Court has upheld two appeals against decisions of the Swiss Federal Administrative Court of March 2014 in connection with the award of railway infrastructure systems for the Ceneri Base Tunnel. The judgements of the Federal Administrative Court have been annulled. The original decisions of AlpTransit Gotthard Ltd (ATG) for the awards are confirmed.
