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The larger one was located in the Sveagruva settlement, about 60 km south of Longyearbyen. The Svea Nord longwall mine has an annual output of 2 million tonnes of bituminous coal. A third of it is sold for metallurgical purposes. The managing director of Store Norske Spitsbergen Kulkompani was Per Andersson. The Sveagruva mine closed in 2017.
Metropolitan’s longwall mines have already caused serious damage to the Woronora Dam catchment area – WaterNSW’s submission to the Independent Report into Mining in the Catchment notes the detrimental impact Metropolitan’s longwall mines 23-27 have had on the Eastern Tributary of the Waratah Rivulet, with ‘Unexpectedly high levels of ...
Longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice (typically 0.6–6.0 m (2 ft 0 in – 19 ft 8 in) thick). The section of rock that is being mined, known as the longwall panel, is typically 3–4 km (1.9–2.5 mi) long, but can be up to 7.5 km (4.7 mi) long and 250–400 m (820–1,310 ft) wide.
The following table lists the coal mines in the United States that produced at least 4,000,000 short tons of coal.. According to the U.S. Energy Information Administration (EIA), there were 853 coal mines in the U.S. in 2015, producing a total of 896,941,000 short tons of coal.
The longwall mining operations at the mine began in 1998. [2] Extraction occurs roughly 200 metres below the surface. Operations are expected to continue until around 2033. [3] The mine is owned by Anglo American Australia and several joint partners. [2] Methane gas extracted from the mine powers the Moranbah North Power Station. [4]
Long walls were ancient Greek defensive structures between cities and ports, especially the Long Walls linking Athens to Piraeus and Phalerum.. The Long Wall may also refer to:
This list of mines in Russia is subsidiary to the list of mines article and lists working, defunct and future mines in the country organized by primary mineral output. For practical reasons, this list also contains stone, marble and other quarries .
Retreat mining is a particularly dangerous form of mining: according to the Mine Safety and Health Administration (MSHA), pillar recovery mining has been historically responsible for 25% of American coal mining deaths caused by failures of the roof or walls, even though it represents only 10% of the coal mining industry. [1]