Liethstollen

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Liethstollen
General information about the mine
Monument entrance Liethstollen, Obernkirchen.jpg
Mouth hole of the Lieth tunnel
other names Liethstolln colliery
Lietstolln
Mining technology Underground mining
Information about the mining company
Start of operation 1899
End of operation 1960
Funded raw materials
Degradation of Hard coal
overall length 2328 m
Geographical location
Coordinates 52 ° 16 '31.4 "  N , 9 ° 8' 50.3"  E Coordinates: 52 ° 16 '31.4 "  N , 9 ° 8' 50.3"  E
Liethstollen (Lower Saxony)
Liethstollen
Liethstollen location
Location Obernkirchen
District ( NUTS3 ) Schaumburg
country State of Lower Saxony
Country Germany

The former mine Lieth tunnel is Oberkirchen in Schaumburg in Lower Saxony .

geography

location

The Liethstollen is located on the northwestern edge of the Bückeberg about 1.5 km northeast of the center of Obernkirchen. A siding to the approximately 800 m west running route of the Rinteln-Stadthagener Railway was built in 1899. The name of the tunnel is derived from the location in the valley of the Liethbach , a tributary of the Bückeburger Aue .

geology

The coal-bearing layers in the Schaumburger Mulde between the Bückeberg and the Rehburg mountains were formed around 140 million years ago in the sweeping Lower Saxony basin. The 600 to 800 m thick Wealden - facies originated in a swamp area with tropical flora. The sandy - silty clay and sandstone banks of Berrias 3, Bückeberg -sequence lying in between are quarried as Obernkirchen sandstone in the Bückeberg .

The Liethstollen area extends between the ridge of the Bückeberg and its northern edge. Coal has been here in five to about 6 ° to the north incident seams encountered. Seam 1 and seam 2, each around 15 m thick, are considered to be not worth mining with a thickness of around 20 cm each . Only the 70 cm to 75 cm thick seam 3 or "main seam" was dismantled. The lower Wealden seams 4 and 5, which are also approximately 90 m thick, turned out to be unsuitable for mining near Obernkirchen because of their smaller thickness .

While in the civil engineering bays in the north bordering the Schaumburg dump bituminous coal was promoted, the stollen Lieth delivered good brikettierfähige lean coal .

history

Coal mining near Obernkirchen is known as early as 1386. The excavation of the Lieth adit and Liethschacht I as a weather shaft by the Schaumburg coal mines in 1899 was initially used for mining exploration of seam 4. When it was only 20 cm thick and found not to be minable, the 0.37% rising adit was used as the main production tunnel for the south-surface forthcoming third seam with time came 7 Weather shafts. Liethschacht IV, which was sunk to a height of 137 m in 1910, also serves as a braking and cable car shaft , Liethschacht VI and VII were primarily braking shafts . The 600 liter trolleys were in Schacht IV to the sole lowered the Lieth adit and 625 mm -Gleisen first with benzene - and later with Akkumulatorlokomotiven transported to light. Because of the increasing distance between the mining field and the mouth of the tunnel , Liethschacht VII was expanded into a production shaft in 1937/38. Trucks transported the coal from his coal bunker to the colliery area at the Liethstollen along well-developed forest paths.

Coal processing

In 1906 a briquette factory was built above the Lieth tunnel next to the coal washing plant . The facilities were thoroughly modernized in the early 1930s. Since 1926, the coking plant at Georgschacht has also been processing lean coal supplied from the Lieth tunnel.

closure

On March 28, 1960, the supervisory board of the then owner Preussag decided to stop operating the mines in the Schaumburger Land at the end of the year. The usage rights of the Lieth tunnel were taken over by the city of Obernkirchen. The strong water inflow in shaft III is collected in a ring socket and brought to light as drinking water via pipes laid through the tunnels .

natural reserve

The Liethstollen serves as winter quarters for some bat species and is a biotope for endangered amphibians and invertebrates .

Web links

Commons : Liethstollen  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b Karl-Heinz Grimme et al .: The Wealden coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, p. 72 , accessed on September 17, 2016 .
  2. ↑ Karl-Heinz Grimme et al .: The Wealden hard coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, p. 12 , accessed on September 17, 2016 .
  3. ↑ a b c d Karl-Heinz Grimme et al .: The Wealden coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, pp. 124–125 , accessed on September 17, 2016 .
  4. ^ A b Thomas Krassmann: Materials on the geology and mining of the Schaumburger country. The Mine Archaeological Society, October 26, 2004, archived from the original on March 22, 2014 ; Retrieved June 25, 2017 .
  5. ↑ a b Karl-Heinz Grimme et al .: The Wealden coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, pp. 19–21 , accessed on September 17, 2016 .
  6. ↑ Carl Martin Schunke, Carl Martin & Georg Heinrich Breyer: The Schaumburger Bergbau from 1386 and from 1614 to 1900. (pdf; 1.9 MB) Mining Working Group of the Adult Education Center Schaumburg, 1936, pp. 17-19 , accessed on September 17 2016 .
  7. ↑ Werner Schöttelndreier: The Lietstolln area. (pdf; 1.36 MB) Lecture given to the Mining Working Group of the Schaumburg Adult Education Center in Hagenburg on April 14, 2010. Mining Working Group of the Schaumburg Adult Education Center, p. 12 , accessed on September 17, 2016 .
  8. ↑ Karl-Heinz Grimme et al .: The Wealden hard coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, p. 128 , accessed on September 17, 2016 .
  9. ↑ Werner Schöttelndreier: The Lietstolln area. (pdf; 1.36 MB) Lecture given to the Mining Working Group of the Schaumburg Adult Education Center in Hagenburg on April 14, 2010. Mining Working Group of the Schaumburg Adult Education Center, p. 13 , accessed on September 17, 2016 .
  10. ↑ Werner Schöttelndreier: The Lietstolln area. (pdf; 1.36 MB) Lecture given to the Mining Working Group of the Schaumburg Adult Education Center in Hagenburg on April 14, 2010. Mining Working Group of the Schaumburg Adult Education Center, pp. 18-19 , accessed on September 17, 2016 .
  11. ↑ Karl-Heinz Grimme et al .: The Wealden hard coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, p. 82 , accessed on September 17, 2016 .
  12. ^ Walter Korf et al .: The Georgschacht coking plant of the Obernkirchen hard coal mine. (pdf; 1.9 MB) in: The development of the coking plant at the Schaumburg total hard coal works . Mining Working Group of the Adult Education Center Schaumburg, 2002, pp. 25–34 , accessed on September 17, 2016 .
  13. ↑ Karl-Heinz Grimme et al .: The Wealden hard coal mining in Lower Saxony. (pdf; 3.1 MB) Mining Working Group of the Adult Education Center Schaumburg, 2010, p. 127 , accessed on September 17, 2016 .