Key tunnel

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The key tunnel is a mining tunnel for draining the shafts in the Mansfeld copper mining area. With a length of 32.3 kilometers, it is one of the longest of its kind in Europe.

course

The tunnel begins at the Helm shaft in Eisleben and then runs north under Wimmelburg , Helbra , Klostermansfeld to Großörner , where it turns east, crosses under Gerbstedt and passes its water at Friedeburg an der Saale to the receiving water that flows into the river Schlenze ends.

Technical specifications

  • Maximum cover: 185 m
  • average gradient: 0.24 m / km
  • largest discharge: approx. 80–90 m³ / min
  • today's discharge: approx. 20-25 m³ / min

literature

  • Klaus Aurada, Raimund Rödel (Hrsg.): Reflection of natural, technical and cultural history in the landscape of Central Germany . Scientific basics of an excursion (=  Greifswalder geographical works . Volume 37 ). Ernst Moritz Arndt University, Greifswald 2005, ISBN 3-86006-249-2 , p. 88–122 ( uni-greifswald.de [PDF; accessed on July 12, 2019]).
  • Günter Jankowski, Gerhard Boltz, Society of German Metalworkers and Miners : On the history of the Mansfeld copper slate mining. GDMB Verlag, 1995, ISBN 978-3-9801-7863-1 .
  • Fritz Heise, Fritz Herbst: Textbook of mining science with special consideration of the hard coal mining. First volume, fifth improved edition, published by Julius Springer, Berlin 1923.
  • Walter Hoffmann: The Mansfeld copper slate mining. A contribution to Central German economic history, Verlag Hain, 1957.

Individual evidence

  1. ↑ Geotechnical and mining risk assessments of water-bearing tunnels in copper slate mining. (accessed on August 22, 2019)
  2. ↑ State Agency for Exempting Contaminated Sites 4011 GVV: Freight reduction in the key tunnel. (accessed on August 22, 2019)

Web links

Commons : Key tunnels  - collection of images, videos and audio files

Coordinates: 51 ° 36 ′ 54.3 "  N , 11 ° 43 ′ 56.3"  E