Iduna mine
| Iduna mine | |||
|---|---|---|---|
| General information about the mine | |||
| Funding / year | Max. 20,829 t | ||
| Information about the mining company | |||
| Employees | Max. 120 | ||
| Start of operation | 1842 | ||
| End of operation | 1885 | ||
| Successor use | Colliery United Castel Sant'Angelo | ||
| Funded raw materials | |||
| Degradation of | Hard coal | ||
| Geographical location | |||
| Coordinates | 51 ° 27 '50.4 " N , 7 ° 11' 42.5" E | ||
|
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| Location | Weitmar | ||
| local community | Bochum | ||
| Independent city ( NUTS3 ) | Bochum | ||
| country | State of North Rhine-Westphalia | ||
| Country | Germany | ||
| District | Ruhr area | ||
The bill Iduna is a former coal mine in Bochum district Weitmar . Although the first guess was made in the 18th century, the mine was not put into operation until the middle of the 19th century. The mine belonged to the Märkisches Bergamtsiertel and there to the jury area Bochum . The name of the colliery is probably derived from the Nordic goddess Iduna .
history
The beginnings
In 1797, the prospect for the Cramer mine was lodged with the mining authority . In 1823 the mutation for the Augusta field was inserted. On September 3, 1838, a length field was awarded . On June 1st, 1842, the Iduna colliery went into operation. In the same year, work began on the upper gallery 2.5 kilometers southwest of the city center . The excavation of the upper tunnel was initially 90 meters querschlägig, then 700 meters stroking the seam towards the west. In addition, a Seigerer shaft with a depth of twelve meters was sunk . The dismantling began in the following year . Two seams were cut . One of the seams had a thickness of 40 inches , the other seam was 22 inches thick. On August 16, 1846, the Iduna length field was converted into a quarter field . The quarter field had an area of 0.9 km 2 . In 1847 a cross passage was excavated 260 meters west of the Iduna upper adit. The cross passage was driven in a southerly direction and reached a length of 377 meters. In 1855 was in tonnlägigen 2 with the shaft no. Promotion started. The shaft had a flat depth of 25 Lachter and was equipped with a reel equipped. In 1857 the mining was stopped above the lug sole and the bill in deadlines set. The shaft was filled and tunnels verbrach over time.
The other years
In 1863 the mine was put back into operation and at the same time civil engineering started . For civil engineering, a ton-long shaft was sunk near today's coal route. A shaft with a separate drive section and drainage section was added 20 meters next to the delivery shaft . The bottom of the tunnel was at a shallow depth of 27 lights . In the same year several places were set, the places were set at 24, 29, and 34 laughs. Due to the constant payment of penalties , the mine owners changed several times. The rightful consisted of a square, the dismantling took place in the tunnel construction . In 1864 the broken tunnel was cleared and the work had become necessary to drain away the accumulated pit water . In the same year, mining began in civil engineering. In 1865 the tonnage underground construction shaft , which was sunk in the main seam of the south wing with a fall of 66 gons , was sunk to a depth of 50 lights. That same year, the first was in the shaft at a shallow depth of 85 meters sole recognized. In addition, for the was water attitude used injector taken out of service and replaced by a rotating suction and lift pump. By switching to the new pump, the temperature in the shaft could be reduced. In 1870, the shallow shaft was sunk to 15 pools below the first level. The 2nd level was set at a shallow depth of 136 meters. In the same year, the third level was set at a shallow depth of 156 meters. In 1873 a start was made to sink a seigeren shaft next to the one-ton shaft. The starting point of the Seigeren shaft was to the east of the Kohlenstraße, the bottom of the tunnel in this shaft was at a depth of 21 meters (+76 meters above sea level ). In 1874 the first level was set in the Seigeren shaft at a depth of 69 meters (+28 meters above sea level) and the second level at a depth of 126 meters (−29 meters above sea level). In 1875, a barrel-length weather shaft was sunk into the main seam.
The last few years
In 1876, mining began in the Seigeren shaft, the ton-long shaft was thrown off and filled. In 1879 the weather shaft was backfilled. In 1880 the 3rd level was mined. In 1881 mining was only done for personal use and the pit water was kept short. The following year the Iduna colliery went bankrupt and was acquired by the Friederica colliery . In 1883 there was another increase in production and the associated boom. In 1885 the Iduna colliery was finally shut down, the shafts were backfilled and the daytime facilities were largely demolished. The mine field was now finally added to the Friederica colliery, but there was no dismantling. In 1910, the United Engelsburg colliery was mined in the Iduna mine field. Around 1925, the right to the United Engelsburg colliery was added.
Promotion and workforce
Coal was extracted from the mine and sold in the immediate vicinity. The first production figures come from the year 1843, 852 tons of hard coal were produced . In 1846, 3,087 tons of hard coal were extracted. In 1847, 2,416 Prussian tons of hard coal were mined. In 1850 the production was 2091 Prussian tons. The first workforce dates from 1855, in that year 23 miners were employed at the colliery who produced 1592 Prussian tons of coal. In 1863 the extraction sank to 201 tons of hard coal, this extraction was provided by 17 miners. In the following year, 24 miners extracted 1,701 tons of hard coal. In 1865, 48 miners extracted 3,166 tons of hard coal. The maximum production was achieved in 1869 with 120 miners, 20,829 tons of hard coal were mined. In 1870, 70 miners extracted 19,547 tons of hard coal. In 1875, 63 miners extracted 12,732 tons of hard coal. In 1880 production fell to 8640 tonnes of hard coal and the workforce fell slightly to 60 miners. In 1884 the production rose to 20,506 tons, this production was provided by 79 miners. The last known workforce and production figures for the mine are from 1885, with 55 miners 11,509 tons of hard coal were mined.
Current condition
The Idunaweg in Bochum-Weitmar is still reminiscent of the Iduna mine. Otherwise no relics from the Iduna colliery have been preserved.
Individual evidence
- ↑ a b c d e f g h i j k l m Joachim Huske : The coal mines in the Ruhr area. Data and facts from the beginning to 2005 (= publications from the German Mining Museum Bochum 144). 3rd revised and expanded edition. Self-published by the German Mining Museum, Bochum 2006, ISBN 3-937203-24-9 .
- ↑ a b c d e Ludwig Herrmann Wilhelm Jacobi : The mining, metallurgy and trade of the government district Arnsberg in statistical representation. Published by Julius Bädeker, Iserlohn 1857. Online
- ↑ a b c d e Wilhelm Hermann, Gertrude Hermann: The old collieries on the Ruhr. 4th edition, unchanged reprint of the 3rd edition. Verlag Karl Robert Langewiesche, successor to Hans Köster KG, Königstein i. Taunus 1994, ISBN 3-7845-6992-7 .
- ↑ a b Ministry of Commerce and Industry (ed.): Journal for the mountain, huts and saltworks in the Prussian state. Volume fourteenth, published by the royal and secret Ober-Hofdruckerei (R. Decker), Berlin 1866
- ↑ Ministry of Commerce and Industry (ed.): Journal for the mountain, huts and saltworks in the Prussian state. Volume nineteenth, published by Ernst & Korn, Berlin 1871.
- ^ The early mining of the Ruhr: street names in Bochum (accessed on April 26, 2011).
- ^ The early mining of the Ruhr: Zeche Iduna (accessed on April 26, 2011).
Web links
- Headframes in Ruhr mining: Iduna (last accessed on April 26, 2011)
- Early mining on the Ruhr: Historical map around 1840 (accessed April 26, 2011)
- Early mining on the Ruhr: Map of the situation around 2000 (accessed on April 26, 2011)
- From the story of Weitmar-Bärendorf