Markusbierg Tunnel
The tunnel Markus Berg ( Luxembourgish: Markusbierg ) connects the exits Schengen ( 13) and Bad Mondorf ( Mondorf- les- Bains ) (12) of the Luxembourg A13 motorway together.
It was built from April 1998 to November 2002 on behalf of the Ministère des Travaux Publics ( Highways Agency ) in Burmerange and Remer 's. The construction costs amounted to € 44.25 million. The opening took place in July 2003.
Technical details
- Number and length of tubes: 2 tubes with 1565 respectively. 1585 m length
- Inner radius of the tube: 5.2 m
- Width of the lane: 7.0 m; Height: 4.8 m
- Height difference on / Exit: 74.35 m
- Gradient of the tunnel: 5%
- Cover above the tunnel: variable between 4 m and 50 m
- Distance between the two tubes: variable from 8 m to 17 m
- Number of emergency stopping bays: 22
- Subterranean erosion: 265,000 m³
- Number of anchorages: 47,000
- Amount of required shotcrete: 33,000 m³
- Weight of steel structures: 1,300 t
- Amount of concrete for tunnel inner shell: 35,000 m³
The tunnel has seven tie bars at a distance of 200 m, which are kept permanently under pressure. There is a passage way between the two tubes for emergency vehicles.
The tunnel is equipped with the latest fire protection systems such as linear temperature detectors, fixed foam extinguishing systems and special fire service control cabinets.
In the tunnel a maximum speed is 90 km / h This can be visually displayed using the curb lights. The driver is so subtly reminiscent of the speed limit and he can see the same whether it is faster or slower than the running lights. In addition to the two driveways are large text panels that display current information about the traffic in the tunnel or on the other line.
Award
In January 2008, the tunnel Markus Berg got together with three other tunnels in Europe, the award for "Best tunnel in Europe ", which is of EuroTAP ( European Tunnel Assessment), a European Commission inspection tunnel awarded. The tunnel was doing " very good" rating in all test areas with the note.
Problems in the tunnel
The tunnel had to be repeatedly closed due to huge bumps in the road since it opened in the summer of 2003 already. This move, according to the head of the Road Administration, Georges Simon, of larger quantities of water here, some up to 50 m are located under the tunnel floor. Thus, the layers of the earth does not come to rest and the tunnel has to be locked. Recently this was the case in November 2008, when the tunnel was closed for two weeks.