St. Andreas pit

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St. Andrew
General information about the mine
Rare minerals Anchorite , dolomite , chalcopyrite
Information about the mining company
Employees 400
Start of operation 1720
End of operation December 31, 1931
Funded raw materials
Degradation of Iron ore
Greatest depth 726 (up to 1000) m
Geographical location
Coordinates 50 ° 47 '40 "  N , 7 ° 41' 16"  E Coordinates: 50 ° 47 '40 "  N , 7 ° 41' 16"  E
St. Andreas (Rhineland-Palatinate)
St. Andrew
Location St. Andreas
Location Bitches
local community Bitches
District ( NUTS3 ) Altenkirchen
country State of Rhineland-Palatinate
Country Germany
District Bergrevier Hamm an der Sieg

The St. Andreas pit is a disused mine in the local area of Bitzen (local community near Hamm ) in the Altenkirchen district .

history

Mining rights were granted in 1812, but it was first mentioned in 1720, and was probably already being mined in the Middle Ages. At first copper and lead ores were mined, later iron spar. From 1831 the Christbescheertstollen was created. Other well-known tunnels are the Bornkauler tunnel at 215.8 m above sea level ( Lage ) and another tunnel at 222.4 m above sea level ( Lage ). In 1866, a civil engineering shaft began to be sunk, which could be operated from 1867. Shaft I had a depth of 313 m. Shaft II was sunk from 1901 and later reached 490 m. Two blind shafts continued. Blind shaft I was 79 m deep, blind shaft II was 197 m deep. By 1913 the 14th foundation level had been set up. The total depth of the pit, which was considered exhausted, was 726 m in 1931, when the 20th and 21st civil engineering levels were sunk; it is said to have been up to 1,000 m deep at last. Up to 400 staff members worked in the pit. It was shut down on December 31, 1931.

Aisle means

The corridor of the St. Andreas pit was located in the middle Siegen strata, on the northwest side of the Wissener Saddle and stroked in a north-south direction. In the southern area, where the passage was most powerful, it was curved like a hook. The total length of the quarry-worthy corridor was about 250 m.

Aisle areas and volume per sole

The largest extension of the corridor area was 2,900 m² and 3,080 m² on the 10th and 11th underground level (TS).

sole Aisle area in m² Volume in m³
Bornkauler tunnel 95
1. TS 60 m 480 17,250
2. TS 85 m 565 13,062
3. TS 120 m 1,330 33.163
4. TS 150 m 825 32,325
5. TS 180 m 705 22,950
6. TS 200 m 1,195 19,000
7. TS 230 m 1,125 34,800
8. TS 255 m 1,980 38,812
9. TS 295 m 1,825 76,000
10. TS 320 m 2,900 46,562
11. TS 350 m 3,080 89,700
12. TS 385 m 2,525 98,088
13. TS 420 m 2,315 84,700
14. TS 455 m 2,445 83,300
15. TS 480 m 2,235 58,500
16. TS 530 m 2,080 107.975
17. TS 570 m 1,480 71,200
18. TS 610 m 685 43,300
19. TS 650 m 665 27,000
20. TS 690 m 305 19,400
21. TS 730 m 6,100

Successor use

In 2010, the discharge of the pit water from the deep tunnels was examined to estimate geothermal potential uses.

See also

Web links

Individual evidence

  1. ↑ St. Andreas pit in the Mineralienatlas
  2. ↑ a b c d e Institute for Geothermal Resource Management: Study to record and quantify the heat flow from flooded mine workings in the former ore mining in Hamm / Sieg and assessment of geothermal uses
  3. ↑ Gustav Wolf: Description of the mountain district Hamm an der Sieg . Adolph Marcus, Bonn 1885.