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Luis (1974). Curso de Laboreo de Minas. Madrid: Universidad Politécnica de Madrid. ISBN 84-600-6254-6. Datos: Q556186 Multimedia: Mine shafts / Q556186…5 kB (800 palabras) - 20:46 4 abr 2024
239-308, ISSN 2180-3250 .. Zhao, Yucheng (2002), «Earthquake Damage to Shafts and Roadways in Kailuan», en Housner, George W.; He, Duxin, eds., The Great…45 kB (4709 palabras) - 10:03 19 abr 2024
Resultados de la Wikipedia en inglés.
- shafts, typically sunk for civil engineering projects, differ greatly in execution method from deep shafts, typically sunk for mining projects. Shaft…21 kB (2977 palabras) - 19:43 8 may 2024
- Wieliczka Salt Mine is now an official Polish Historic Monument (Pomnik Historii) and a UNESCO World Heritage Site. Its attractions include the shafts and labyrinthine…22 kB (2118 palabras) - 15:43 17 may 2024
- ventilation-only shafts, close to the existing mining shafts, were opened: in 1899 Shaft 7 was opened near Shaft 3, in 1900 Shaft 8 was opened near Shafts 1 and…15 kB (1880 palabras) - 09:59 8 nov 2023
- Lignite (sección Example close shaft mine)of moisture, which partially explains its low carbon content. Lignite is mined all around the world and is used almost exclusively as a fuel for steam-electric…41 kB (3744 palabras) - 05:49 22 may 2024
- accumulates in old mines and can cause suffocation. "Bad Air", or poisonous gases and lack of oxygen from unventilated tunnels. Hidden mine shafts, often hidden…15 kB (1601 palabras) - 21:55 18 abr 2024
- over the A and B shafts were replaced with concrete headframes in 1919; a larger modern "C" shaft and headframe was built in 1955. The mine was at one time…11 kB (1065 palabras) - 05:30 7 may 2024
- Cliffs Shaft Mine Museum Hibernia mines Hull–Rust–Mahoning Open Pit Iron Mine Iron Mountain (Utah) Iron Mountain District Iron Mountain Mine Jackson Mine Minorca…643 bytes (52 palabras) - 18:17 21 mar 2022
- subterranean civil engineering, ventilation shafts, also known as airshafts or vent shafts, are vertical passages used in mines and tunnels to move fresh air underground…3 kB (210 palabras) - 14:44 13 feb 2024
- 900 ft) shafts to reach the 70 m (230 ft) mineral seam which includes a mineable area of around 25,200 hectares (62,000 acres). The twin shafts have been…26 kB (2824 palabras) - 09:18 29 dic 2023
- of the air current was down the shaft to the bottom of the mine, and up through the various winzes (intermediate shafts) to the adit level. The open end…31 kB (4249 palabras) - 01:18 2 may 2024
- William R. Shafter, who at one point commanded the nearby (relatively speaking) Fort Davis.[citation needed] As of 2012, at least one silver mine, La Mina…11 kB (1034 palabras) - 11:49 20 may 2024
- at the Impala Platinum mine in Rustenburg, South Africa, when an ascending mine elevator fell 200 m down the number 11 shaft. Eleven miners were killed…2 kB (185 palabras) - 16:23 21 ene 2024
- Charters Towers mine shafts are a heritage-listed group of mine shafts and ruins at Charters Towers, Charters Towers Region, Queensland, Australia. It…27 kB (4172 palabras) - 11:38 22 dic 2023
- Look up shaft or shafts in Wiktionary, the free dictionary. Shaft may refer to: Shaft (mechanical engineering), a rotating machine element used to transmit…4 kB (529 palabras) - 11:26 2 ene 2024
- and consisted primarily of three shafts: the Welsh Shaft, the Dumbell's Shaft and the Engine Shaft; each of these shafts was connected by a series of levels…18 kB (2601 palabras) - 11:01 23 feb 2022
- the mine was taken over by new owners on a 21 year lease, replaced machinery and improved the surface-works. In 1883 three shafts were open. One shaft is…17 kB (949 palabras) - 20:37 4 feb 2024
- Slănic mine is an old salt mine, located in Slănic, Prahova County, Romania, 100 km north of Bucharest. The salt mine is closed for extraction purposes…8 kB (913 palabras) - 07:35 6 ago 2023
- Staatsmijn Maurits (categoría Coal mines in the Netherlands)810 m. A third shaft was completed in 1958. At the time of completion of the third shaft, the Maurits mine was the largest two-shafts mine in the world…3 kB (307 palabras) - 17:01 6 jun 2017
- Drift mining (redirección desde Drift mine)1,500 tons per day. In shaft mines 600 to 700 tons daily is regarded as a good output. The first ton of coal in a shaft mine 100 feet in depth and having…14 kB (1914 palabras) - 01:55 1 may 2024
- demonstrating the evolution or pattern of Queensland's history. Mine Remains at the Day Dawn PC No. 3 shafts are located on what was one of Australia's most productive…8 kB (1057 palabras) - 11:31 22 dic 2023
- shaft to cover it and stop fatal accidents from occurring. Some mines are capped using large metallic grills, this usual occurs on deep level shafts so…4 kB (548 palabras) - 07:52 12 mar 2022