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Zofiówka Coal Mine
The Zofiówka coal mine is a large mine in the south of Poland in Jastrzębie-Zdrój, Silesian Voivodeship, 307 km south-west of the capital, Warsaw. Zofiówka represents one of the largest coal reserve in Poland having estimated reserves of 87 million tonnes of coal. The annual coal production is around 3.7 million tonnes. Accidents * 5 miners died in 5 May 2018 due to Rockburst with seismic bump with 3,4 magnitude. * 10 miners died in 23 April 2022 due to Rockburst A rock burst is a spontaneous, violent failure of rock that can occur in high-stress mines. Although mines may experience many mining-related seismic events, only the tremors associated with damage to accessible mine workings are classified as ro ... with outburst of methane gas. References External links Official site Coal mines in Poland Buildings and structures in Jastrzębie-Zdrój Coal mines in Silesian Voivodeship {{Mine-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jastrzębie-Zdrój
Jastrzębie-Zdrój (; german: Bad Königsdorff-Jastrzemb, originally ''Jastrzemb'', cs, Lázně Jestřebí, szl, Jastrzymbie-Zdrōj or ''Jastrzymbje-Zdrůj'') is a city in south Poland with 86,632 inhabitants (2021). Its name comes from the Polish words ''jastrząb'' ("hawk") and ''zdrój'' ("spa" or "spring"). From 1861 until the 20th century, it was a spa village situated in Upper Silesia. It was granted city rights in 1963. Jastrzębie-Zdrój is currently situated in the Silesian Voivodeship (since 1999), previously in Katowice Voivodeship (1975–1998). In the early 1980s, the city was one of main centers of workers' protests, which resulted in creation of Solidarity (see: Jastrzebie-Zdroj 1980 strikes). History The first written documentation, relating to this area, date back to around 1305 (''Liber fundationis episcopatus Vratislaviensis''). Administratively, the town is made up of several old settlements, whose origins go back to the distant past. The original name of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Town
A town is a human settlement. Towns are generally larger than villages and smaller than cities, though the criteria to distinguish between them vary considerably in different parts of the world. Origin and use The word "town" shares an origin with the German word , the Dutch word , and the Old Norse . The original Proto-Germanic word, *''tūnan'', is thought to be an early borrowing from Proto-Celtic *''dūnom'' (cf. Old Irish , Welsh ). The original sense of the word in both Germanic and Celtic was that of a fortress or an enclosure. Cognates of ''town'' in many modern Germanic languages designate a fence or a hedge. In English and Dutch, the meaning of the word took on the sense of the space which these fences enclosed, and through which a track must run. In England, a town was a small community that could not afford or was not allowed to build walls or other larger fortifications, and built a palisade or stockade instead. In the Netherlands, this space was a garden, mor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silesian Voivodeship
Silesian Voivodeship, or Silesia Province ( pl, województwo śląskie ) is a voivodeship, or province, in southern Poland, centered on the historic region known as Upper Silesia ('), with Katowice serving as its capital. Despite the Silesian Voivodeship's name, most of the historic Silesia region lies outside the present Silesian Voivodeship – divided among Lubusz, Lower Silesian, and Opole Voivodeships. The eastern half of Silesian Voivodeship (and, notably, Częstochowa in the north) was historically part of Lesser Poland. The Voivodeship was created on 1 January 1999 out of the former Katowice, Częstochowa and Bielsko-Biała Voivodeships, pursuant to the Polish local government reforms adopted in 1998. It is the most densely populated voivodeship in Poland. Within the area of 12,300 square kilometres, there are almost 5 million inhabitants. It is also the largest urbanised area in Central and Eastern Europe. In relation to economy, over 13% of Poland's gross domesti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poland
Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous member state of the European Union. Warsaw is the nation's capital and largest metropolis. Other major cities include Kraków, Wrocław, Łódź, Poznań, Gdańsk, and Szczecin. Poland has a temperate transitional climate and its territory traverses the Central European Plain, extending from Baltic Sea in the north to Sudeten and Carpathian Mountains in the south. The longest Polish river is the Vistula, and Poland's highest point is Mount Rysy, situated in the Tatra mountain range of the Carpathians. The country is bordered by Lithuania and Russia to the northeast, Belarus and Ukraine to the east, Slovakia and the Czech Republic to the south, and Germany to the west. It also shares maritime boundaries with Denmark and Sweden. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jastrzębska Spółka Węglowa
Jastrzębska Spółka Węglowa SA is a large coal mining company in Poland producing around 12 million tonnes of coal every year. The company has proven recoverable reserves of 503.4 million tonnes of coal Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when .... External linksOfficial site Coal companies of Poland Companies listed on the Warsaw Stock Exchange {{Poland-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government-owned Corporation
A state-owned enterprise (SOE) is a government entity which is established or nationalised by the ''national government'' or ''provincial government'' by an executive order or an act of legislation in order to earn profit for the government, control monopoly of the private sector entities, provide products and services to citizens at a lower price and for the achievement of overall financial goals & developmental objectives in a particular country. The national government or provincial government has majority ownership over these ''state owned enterprises''. These ''state owned enterprises'' are also known as public sector undertakings in some countries. Defining characteristics of SOEs are their distinct legal form and possession of financial goals & developmental objectives (e.g., a state railway company may aim to make transportation more accessible and earn profit for the government), SOEs are government entities established to pursue financial objectives and devel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Warsaw
Warsaw ( pl, Warszawa, ), officially the Capital City of Warsaw,, abbreviation: ''m.st. Warszawa'' is the capital and largest city of Poland. The metropolis stands on the River Vistula in east-central Poland, and its population is officially estimated at 1.86 million residents within a greater metropolitan area of 3.1 million residents, which makes Warsaw the 7th most-populous city in the European Union. The city area measures and comprises 18 districts, while the metropolitan area covers . Warsaw is an Alpha global city, a major cultural, political and economic hub, and the country's seat of government. Warsaw traces its origins to a small fishing town in Masovia. The city rose to prominence in the late 16th century, when Sigismund III decided to move the Polish capital and his royal court from Kraków. Warsaw served as the de facto capital of the Polish–Lithuanian Commonwealth until 1795, and subsequently as the seat of Napoleon's Duchy of Warsaw. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called coal seams. Coal is mostly carbon with variable amounts of other elements, chiefly hydrogen, sulfur, oxygen, and nitrogen. Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of years. Vast deposits of coal originate in former wetlands called coal forests that covered much of the Earth's tropical land areas during the late Carboniferous ( Pennsylvanian) and Permian times. Many significant coal deposits are younger than this and originate from the Mesozoic and Cenozoic eras. Coal is used primarily as a fuel. While coal has been known and used for thousands of years, its usage was limited until the Industrial Revolution. With the invention of the steam engine, coal consumption increased. In 2020, coal supplied about a quarter of the world's primary energy and over a third of its electricity. Some iron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockburst
A rock burst is a spontaneous, violent failure of rock that can occur in high-stress mines. Although mines may experience many mining-related seismic events, only the tremors associated with damage to accessible mine workings are classified as rock bursts. The opening of mine workings relieves neighboring rocks of tremendous pressure, which can literally cause the rock to explode, or trigger abrupt movement on nearby geological structures. Rock bursts are a serious hazard; in South Africa, they kill roughly 20 miners each year. Details Rock bursts result from brittle fracturing of rock, causing it to collapse rapidly with violent spalling of rock that is approximately 100 to 200 tonnes, or more. This release of energy reduces the potential energy of the rock around the excavation. Another explanation is that the changes brought about by the mine's redistribution of stress trigger latent seismic events, deriving from the strain energy produced by its geological aspects. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coal Mine Bump
A coal mine bump (a bump, a mine bump, a mountain bump, or a rock burst) is a seismic jolt occurring within an underground mine due to the explosive collapse of one or more support pillars. In room and pillar mining, tunnels are advanced in a rectangular pattern resembling city streets (tunnels), leaving behind blocks (pillars) of coal. To a miner, a partially completed tunnel resembles a room dug into the coal seam. As mining proceeds, the weight of rock overburden previously supported by coal mined from rooms is redistributed to pillars. If that weight exceeds the strength of a pillar, the pillar can fail by crushing or exploding. An explosive failure is called a “bump.”{{cite news , first=Seth , last=Bornstein, first2= Jennifer , last2=Talhelm , title=Stress Causes Killer Mine Bumps , date=2007-08-17 , publisher=Associated Press , URL =http://usatoday30.usatoday.com/news/topstories/2007-08-17-2823715890_x.htm?csp=34 , work =USA Today In the eastern United States' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outburst (mining)
An outburst is the sudden and violent ejection of coal, gas, and rock from a coal face and surrounding strata in an underground coal mine. When outbursts occur, they can be very serious events, possibly even resulting in fatalities. Effects of outbursts Outbursts may range in severity from being barely noticeable, to causing the destruction of an entire mining panel, and throwing pieces of machinery weighing tens of tonnes several metres. An outburst at Tahmoor Colliery, in New South Wales, Australia, in June 1985 involved the ejection of 350 tonnes of coal and rock and over 3000 cubic metres of gas, resulting in one fatality. Another outburst at the nearby South Bulli Colliery in 1991, resulted in three fatalities, and yet another outburst at Westcliff Colliery in January 1994 involved 300 tonnes of coal and rock and resulted in one fatality. Predisposing factors Several factors predispose certain coal seams to being outburst-prone. These include: * Coal seam gas content ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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