Kirchheim tunnel
| Kirchheim tunnel | ||||
|---|---|---|---|---|
 South portals of the left-hand and right-hand Kirchheimer tunnel
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| use | Railway tunnel | |||
| traffic connection | Frankenbahn | |||
| place | Kirchheim am Neckar - Lauffen am Neckar | |||
| length | 583.9 m | |||
| Number of tubes | 2 | |||
| Largest coverage | approx. 70 m | |||
| construction | ||||
| Client | KWSt.E. | |||
| start of building | April 1, 1846 (right) | |||
| completion | 1848 (right) / 1893 (left) | |||
| business | ||||
| operator | DB network | |||
| release | July 25, 1848 (right) / September 15, 1894 (left) | |||
| location | ||||
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| Coordinates | ||||
| South portals | 49 ° 2 ′ 57 " N , 9 ° 8 ′ 53" E | |||
| North portals | 49 ° 3 ′ 16 " N , 9 ° 8 ′ 48" E | |||
Map with all coordinates: The Kirchheimer Tunnel is a 584 m long railway tunnel on the Frankenbahn between Kirchheim am Neckar and Lauffen am Neckar in the north of Württemberg . The German railway takes the double tunnel formally as two buildings, the "right-Kirchheimer tunnel" for the track in the direction of Heilbronn and the "left-Kirchheimer Tunnel" in the direction of Bietigheim-Bissingen .
The tunnel shortens the Neckar loop north of Kirchheim by pushing through the limestone layers of its impact slope to the old Lauffen loop. Behind the tunnel, the route leads along the old course of the Neckar and the Zaber to Lauffen, where it reaches the Neckar again. At the northern mouth of the tunnel, the railway runs through the Alte Lauffener Neckartalschlinge conservation area . The Kirchheim tunnel is crossed by the federal highway 27 and by the border between the districts of Ludwigsburg and Heilbronn .
The Kirchheim tunnel on the right-hand side was built from April 1, 1846 to 1848 for the Württemberg Northern Railway Ludwigsburg – Heilbronn. The tube was created by powder blasting and the breakthrough came on December 29, 1847. Initially, only the vaulted ceiling was to be bricked up. Because of the rugged rock, however, the side walls also had to be bricked, using regional sandstone . The tunnel was the third railway tunnel in Württemberg after the Rosenstein and Prague tunnels. Together with the Enz Bridge near Besigheim , it was one of the most complex structures for the railway line.
The height of the tunnel from the top of the rails to the top of the vault is around 20 ′ (5.7 m) and it is around 16 ′ (4.6 m) wide. The radius of the ceiling vault is around 10 ′ (2.9 m), its height is around 4 ′ (1.1 m). Seen from Kirchheim, the tunnel lies on a slope of 5 ‰.
In contrast to the other railway tunnels of important main lines, its cross-section was not designed for later double-track operation. When the KWSt.E. From 1890 to 1896 the second track between Bietigheim and Jagstfeld was added, so another tunnel tube, the Kirchheim tunnel on the left, had to be built. The two tubes, which are around 8 m apart, were connected to one another by several crosscuts .
The building is the scene of the crime in Heimito from Doderer's detective novel A Murder Everyone Commits from 1938: The protagonist frightens his fellow travelers with a joke during a train ride through the tunnel so much that they pass out, hangs far out of the window and then through the Impact on the wall edge of one of the crosscuts is killed.
literature
- Otto Supper: The Development of the Railway System in the Kingdom of Württemberg. Memorandum for the 50th anniversary of the opening of the first railway line in Württemberg on October 22, 1845 . Kohlhammer, Stuttgart 1895, ISBN 3-17-005976-9 , p. 82 (reprint: Kohlhammer, Stuttgart 1981).
- Hans-Wolfgang Scharf: The railway in Kraichgau. Railway history between the Rhine and Neckar . EK-Verlag, Freiburg (Breisgau) 2006, ISBN 3-88255-769-9 .
- Jan Bürger: Heimito von Doderer and the Kirchheimer tunnel in Lauffen aN German Schiller Society , Marbach am Neckar 2008, ISBN 978-3-937384-42-9 .
- K. statist.-topograph. Bureau (ed.): Description of the Oberamt Besigheim . Müller, Stuttgart 1853, ISBN 3-7644-0031-5 , p. 270 (Reprint: Bissinger, Magstadt).
