Tunnel decorations
| Tunnel decorations | ||||
|---|---|---|---|---|
 The north portal of the tunnel
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| use | Motorway tunnel | |||
| traffic connection |
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| place | Decorate at heroics | |||
| length | 1725 m | |||
| Number of tubes | 2 | |||
| Largest coverage | 65 m | |||
| construction | ||||
| start of building | 2005 | |||
| business | ||||
| release | December 12, 2008 | |||
| location | ||||
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| Coordinates | ||||
| North portal | 51 ° 17 ′ 7 ″ N , 11 ° 13 ′ 36 ″ E | |||
| South portal | 51 ° 16 ′ 27 " N , 11 ° 12 ′ 56" E | |||
Map with all coordinates: The Schmücke tunnel is a road tunnel in Thuringia with two tubes. In relation to the route axis, it has an average length of 1725 m. As part of the A 71 motorway , between the Heldrungen and Kölleda junctions , it crosses under the Schmücke ridge . Construction began in 2005 and on December 12, 2008 the structure was opened to traffic after a test phase. The tunnel sponsor was Katharina Althaus, the wife of the then Thuringian Prime Minister Dieter Althaus . The total cost of the tunnel was 85 million euros.
construction
The west tube is 1,729.46 m long and the east tube is 1,720.81 m long. The maximum cover of the tunnel is 65 m. Each tube has a clearance height of 4.5 m and a clearance width of 9.5 m, which is divided into two 3.5 m wide lanes, edge strips of 0.25 m and emergency walkways on both sides of 1.0 m wide. In each tube there are two breakdown bays at a distance of 575 m. The directional lanes are connected to one another by passable connecting tunnels. There are also three additional cross tunnels at a distance of 575 m. The tubes are ventilated lengthways by jet fans .
Geology and construction
The geology of the wooded ridge is characterized by rock layers of varying strength and steepness, with sometimes strong local water inflows and a geological fault zone. Among other things , red sandstone , red and shell limestone with a mountain water level of up to 25 m water column and Keuper are passed through. A groundwater lowering occurs in areas.
The tunnel was excavated with 105 to 147 m² of excavated cross-sectional area using blasting or mechanically, with shotcrete lining with cross-section subdivision into dome, bench and bottom according to the new Austrian tunnel construction method. The two tubes were tackled in parallel from both portals. 375,000 m³ of excavated material was produced.
particularities
The tunnel is the first in Germany to be completely illuminated with white LEDs.
literature
- Thuringian jewelry tunnel . In: Ring Deutscher Bergingenieure (Ed.): Mining . No. 1 . Makossa, Gelsenkirchen January 2007, p. 26–28 ( rdb-ev.de [PDF; 147 kB ; accessed on April 25, 2011]).
Web links
Individual evidence
- ↑ a b Markus Reuter: Stability analysis and dimensioning of a road tunnel in strongly changing mountain conditions . Diploma thesis Bauhaus-Universität Weimar, June 22, 2007, page 5 (PDF; 2.9 MB)
- ↑ The A 71 is getting longer and longer , Free Word of December 13, 2008
- ^ Minister in Stress , Neue Nordhäuser Zeitung: online article from December 12, 2008
