2006 - ACTIVITY REPORT

The Danish Society for Tunnels and Underground Works has arranged 6 member meetings during the year 2006 including technical site visits to the New Norwegian Opera House at the harbour front of Oslo and the Immersed Bjørvika Tunnel under construction crossing the Oslo Fjord. Further more a technical site visit to the TBM in action for the service tunnel for district heating in the city center of Copenhagen took place in November. Members of the society have participated in ITA General Assembly in Seoul, Korea and two Working Groups. A member has participated in the inauguration of COSUF in Lausanne at the end of May and activities within PIARC.

Phase 3 of the Copenhagen Metro with an extension to the Copenhagen Airport is progressing very well with all civil works structures completed in due time. Railway installations and testing procedures are ongoing and the line is foreseen to be inaugurated in October 2007.

The next phase (4) of the Copenhagen Metro contains a 15 km City Circle Ring with 17 underground stations. The project was decided already in 2005 and final political approval by the Danish Parliament is expected to be early 2007. The project requires an investment of 2 billion euros to be financed by the cities of Copenhagen and Frederiksberg, the State and users charges. The design work and geotechnical site investigations will start in 2007 with construction works to be initiated in 2009 - 2010. The project is estimated to be completed in year 2017.

A bored service tunnel as part of an updating of the Copenhagen power stations has been contracted to a joint venture of MT Højgaard (DK) and Hochtief Construction AG (D) with mining starting in July 2006. The tunnel is performed as a segment lined tunnel in level – 35 m from a shaft next to Amager Power Station over one middle shaft in the inner town and is ending in a receiving shaft on the north side of Copenhagen City. The total length is 3.9 km and the mining is performed with a 5.1 m Herrenknecht TBM with an EPB shield. NATM tunnels are required at all shafts for starting, receiving and re-launching the TBM after being turned into a new direction in the middle shaft. The mining with TBM is planned to reach the receiving chamber by mid 2007 and the project is scheduled to be completed by the beginning of 2009. Consultants: COWI.

In September 2005 a proposal was published outlining a 12 km immersed road tunnel with 6 lanes linking the motorway system at the north with the motorway system at the south of Copenhagen. The alignment followed the Copenhagen Harbour Canal throughout and included an underwater parking facility. The cost was estimated to be close to 3 billion Euros and proposals for financing were included in the proposal. The proposal got a favorable reception from the public as well as local politicians, because it was design to remove a very substantial part of the road traffic from the center of Copenhagen as well as providing access to previously unreachable development areas to the east of Copenhagen Harbour. The scheme has been developed further by the Copenhagen Municipality in 2006, and is now included wholly or partly in two alternative solutions. Planning work on access roads to the motorways in the north have been started under the project “Northern Harbour Link” which forms a part of the political agreement of the phase 4 of Copenhagen Metro necessitating further future decisions on the long term for the harbour tunnel.

A new Harbour Tunnel in the city of Aarhus is under planning and Environmental Impact Assessment studies (EIA) have been completed during 2006. The tunnel will be 2.1 km long connecting the harbour terminal with the motorway E45 passing through the city center of Denmark’s second largest city. It will be a unidirectional cut-and-cover tunnel with two tubes and 2 lanes in each tube for carrying up to 40 % of HGV traffic. The final planning will go out for public hearing and political approval by mid 2007. Construction works are estimated to be close to 200 million Euros starting in 2008 with an opening year for traffic in 2013. The project will be financed by the Danish Government and Aarhus Municipality. Consultants: Carl Bro Group.

The proposed 3 km new road link (“Northern Harbour Link”) between the Nordhavn and Lyngbyvej located north of Copenhagen has during 2006 been developed further. Presently there are 3 alternatives being investigated containing cut-and-cover tunnels with a length from 0.5 to 2.5 km. The project is being developed by Copenhagen Municipality and in early 2007 the consultant will perform further alignment and EIA studies. The project is planned to be tendered out for construction works by mid 2009. It may be tendered as a PPP project to an estimated cost of 190 million Euros. The project is expected to take 5 years to complete.

2005 - ACTIVITY REPORT

The Danish Society for Tunnels and Underground Works has arranged 5 member meetings during the year 2005. In addition it organized a technical visit to the New Theater at the harbour front of Copenhagen. Members of the society have participated in ITA General Assembly in Istanbul and two working groups.
The next phase (4) of the Copenhagen Metro Ring was political decided at the end of 2005. The project will require an investment of 2 billion euros to be financed by the cities of Copenhagen and Frederiksberg, the State and users charges. The new line will be approximately 15 km long and include 17 stations. The design will start in 2007.
A tunnel for pedestrians under the Copenhagen Harbour crossing nearby the New Opera House is still waiting for the Copenhagen Municipality to decide on financial issues.
A bored service tunnel as part of an updating of the Copenhagen power stations has been contracted to MT Højgaard at the early spring 2005. The tunnel will be a segment lined tunnel with an inner diameter of 4.20 m and has a total length of 3.8 km. The mining method will be closed mode TBM with an EPB shield supplied by Herrenknecht. Time frame is preparation of shafts 2005- 2006 and start of mining in mid 2006. The TBM should start in mid 2007 and the project is planned to be finished by the beginning of 2009. Consultants: COWI.
A serious proposal for a 12 km road tunnel linking the motorway system at the north with the motorway system at the south of Copenhagen has in September 2005 been tabled for the Copenhagen Municipality. The alignment follows the Copenhagen Harbour front throughout and will therefore offer only minor disturbance of the city and its current traffic. The tunnel is proposed as an immersed type tunnel with 4 lanes plus emergency lanes, all to motorway standard. The cost is estimated to be close to 3 billion euros. The proposal got a favorable reception from the public as well as local politicians, because it was design to remove a very substantial part of the road traffic from the center of Copenhagen.
A new Harbour Tunnel in the city of Aarhus is under planning. The tunnel will be almost 2.5 km long connecting the harbour terminal with the motorway system passing through the city center of Denmark’s second largest city. It will be a cut-and-cover tunnel with two tubes with 2 lanes each and unidirectional traffic. The final planning will go out for political and public hearing at the end of 2006. Consultants: Carl Bro Group.
The proposed new road link between the Nordhavn and Lyngbyvej located north of Copenhagen has been decided by the political system at the end of 2005. The project contains a 458 m long tunnel and two access tunnels 190 m and 159 m long to a cost of 180 million euros. The project is expected to take 5 years to complete.

2004 - ACTIVITY REPORT

The society arranged 5 member evenings during the year. In addition it organised a technical excursion to the Karahnjukar hydro power scheme in eastern Iceland as well as other tunnel projects.

Members participated in ITA General Assembly in Singapore and 2 working groups.

A bored service tunnel under the harbour in Copenhagen has been planned and will go out for tender in 2005.

Various other tunnel projects are being studied, among which is a new metro circle line which is likely to be decided upon during 2005.

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