• Coal mining Wikipedia

    Coal mining greatly increased during the industrial revolution and the following decades. The main mining areas were around Aachen, the Ruhr and Saar area, along with many smaller areas in other parts of Germany. These areas grew and were shaped by coal mining and coal processing, and this is still visible even after the end of the coal mining.

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  • Surface Coal Mining

    Begin Main Content Area Surface Coal Mining. The primary methods of surface coal mining used in Pennsylvania are: Strip Mining: Layers of soil and rock overburden are removed the coal exposed coal seam is excavated. The area is then backfilled, regraded, and replanted during the reclamation process.

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  • What is Strip Mining? (with pictures)

    Contour strip mining is a method of surface mining or in which bulldozers, power shovels, or stripping wheels are used to remov e large chunks of earth in terraced strips in order to extract coal

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  • Contour strip mining | coal mining | Britannica

    Other articles where Contour strip mining is discussed: auger mining: Augering is usually associated with contour stripmining, recovering coal for a limited depth beyond the point where stripping becomes uneconomical because the seam of coal lies so far beneath the surface.

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  • Chapter 2: The Environmental Effects of Strip Mining The ...

    This section describes the five main types of surface coal mining techniques: area mining, open pit mining, contour mining, auger mining, and mountaintop removal. Underground mining is also considered in this section. Terrain, economics, and custom generally dictate which technique an operator chooses.. All surface or strip mining first removes the overlying vegetation, soil and underground ...

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  • Basic Information about Surface Coal Mining in Appalachia ...

    Layers of rock and dirt above and between the coal seams are removed. Coal seams are removed with excess soil and rock placed in an adjacent valley. Large scale earth moving equipment is used to excavate and remove coal from lower layers. The equipment used depends on the method and scale of the surface mining method being employed.

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  • Coal Contour Surface "Strip" Mining Mine

    Coal Contour Surface "Strip" Mining . ... allowing for room for the mining equipment and facilities. From the top of the mountain, drills are used to drill the overburden and place explosives in the holes. They are systematically detonated, blasting the rock where it can be loaded using shovels and loaders, into large haul trucks, and ...

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  • The Coal Business in Wyoming |

    Nov 08, 2014· The Coal Business in Wyoming. Chamois L. Andersen. ... Coal mining at Rock Springs, 140 miles west of Carbon, also began in the late 1860s to supply coal to the ... Surface mining requires constant safety checks of log books, powder magazines used for blasting and the major equipment used to load coal and haul it away.

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  • opencast coal mining equipments

    List of Equipment Used in Opencast Coal Mining | Mining. Opencast mining is the oldest method of excavating minerals but the mining operations have been mechanised by the use of heavy earth moving machinery during the last 50 years resulting in excavations on a scale which was unthinkable half a …

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  • APES Chapter 14 Flashcards | Quizlet

    Another surface mining method is mountaintop removal. In the Appalachian Mountain area of the United States, where this form of mining is prominent, explosives, large power shovels, and huge machines called draglines are used to remove the top of a mountain and expose seams of coal…

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  • What are main methods of surface mining? Quora

    Surface mining, including strip mining, openpit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. In contrast to underground mining, in which th...

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  • What is Strip Mining? (with pictures)

    Nov 07, 2019· The main concern in flat areas tends to be containment and proper disposal of overburden, to keep the site under control. In contour strip mining, strips are dug out around the contours of a mountain, and miners must be more careful to avoid collapses and other problems which can cause injuries or deaths.

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  • Strip Mining an overview | ScienceDirect Topics

    In contour mining, which is used when the coal lies beneath hilly terrain or outcrops on a hillside, the overburden is removed and dumped on the downhill side of the mining operation [3]. Auger mining can be used for coal outcrops on a hillside or in strip mines where the stripping ratio has become too high to be economical for strip mining [4 ...

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  • What happens to the land after coal mines close?

    US coal production has fallen a third in the past decade, and the Energy Information Administration projects stagnation in the industry. More than a million acres have been affected by coal mining. As more mines close, what happens to this land will define the fortunes of …

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  • coal strip mining equipment

    Different machines and equipment are used for underground mining. The equipment to be used is determined by the method of mining to be used and the form of underground access to be employed. Drills, excavators, and mining shovels are just but some of the equipment used for underground access. ... It is a strip mining method where coal deposits ...

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  • Coal Controversy In Appalachia NASA Earth Observatory

    Surface mining at these scales is more economical for coal companies, safer for miners, and, coal operators say, essential for mining the thin seams of lowersulfur coal more valuable in today’s market. With dynamite and immense machines, surface mines can produce more than two to three times as much coal per miner as underground mines can.

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  • Mine Tailings Disposal Methods

    Surface mining is conducted by two basic methods: contour strip mining and area mining. Contour strip mines are used in hilly or rolling country, such as occurs in the Appalachian coal mining region. Overburden excavations follow the contour of the coal outcrop along the hillside, resulting in long sinuous bands of stripmined land surrounding ...

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  • Surface Mining, Industry of Metals, Minerals, Precious ...

    The main mineral extracted by this method is coal. Coal is mined by removing the land above the seams. This method of coal mining is mainly conducted on the Appalachia Mountain in the United States. The coal cannot be mined using simple machines. Explosives are used to mine the coal and the excess coals are dumped in the nearby valley.

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  • Plundering Appalachia The Tragedy of MountaintopRemoval ...

    Big coal cooks up a toxic soup. After the coal is washed, a slurry of impurities, coal dust, and chemical agents used in the process remains. This liquid waste, called “coal sludge” or “slurry,” is often injected into abandoned underground mines, a practice that can lead to groundwater contamination.

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  • New Sales Tax Exemption for Surface Mining Operations

    "surface mining" more broadly so that exemption applies to machinery and equipment used in (1) strip mining, open pit mining, and contour mining operations, (2) quarrying, (3) the mining of surface deposits that lie exposed in their natural state, (4) reclamation projects undertaken by

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  • STRIP MINING | meaning in the Cambridge English Dictionary

    strip mining definition: a method of obtaining substances such as coal from the ground that involves removing the top layer…. Learn more.

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  • What Machinery Is Used In Mining New Media Max

    Sep 02, 2017· What machinery is used In mining underground or alluvial mining processes. Mining diamonds requires the vertical extraction of near cylindrical pipes and, for those who could afford it, steam power to drive new machinery. What Machinery Was Used In The Industrial Revolution This meaning is found in late medieval French, and is adopted from the...

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  • Strip Mining, Openpit Mining, Surface Mining, Mining ...

    Strip Mining. Strip mining is a kind of surface mining. The ore is very near to the surface of the land but has one or more layers of rock and filth on top of it. To mine the ore, these layers have to be removed. The steps in strip mining are similar to openpit mining.

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  • A Review of Highwall Mining Experience and Practice

    2016 Coal Operators’ Conference The University of Wollongong 522 10 – 12 February 2016 A REVIEW OF HIGHWALL MINING EXPERIENCE AND PRACTICE Sungsoon Mo 1, Chengguo Zhang, Ismet Canbulat and Paul Hagan Abstract: The highwall mining method originated in the USA in the 1940s. The aim of the method was to recover coal from a surface mine that has reached its economic limit.

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  • Strip mining Encyclopedia Britannica

    Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common stripmining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations for ...

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  • Surface mining Wikipedia

    "Strip mining" is the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock (the overburden).It is most commonly used to mine coal and lignite (brown coal).Strip mining is only practical when the ore body to be excavated is relatively near the surface.

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  • coal mining | Contour strip mining Students | Britannica ...

    coal mining Contour strip mining Contour mining is commonly practiced where a coal seam outcrops in rolling or hilly terrain. Basically, the method consists of removing the overburden above the coal seam and then, starting at the outcrop and proceeding along the hillside, creating a …

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  • SURFACE MINING – Mining Engineering Site

    Jul 20, 2016· Surface mining in which reclamation is carried out contemporaneously with extraction may be classified as either area mining or contour mining. Area mining is open cast or strip (furrow) mining. It is frequently practiced in a large scale, which results in low unit cost, high productivity, high recovery, and greater safety compared to ...

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  • Pros and Cons of Strip Mining |

    Feb 25, 2015· The Pros of Strip Mining. 1. High Recovery Rate Other forms of mining do not guarantee the same rate of return as strip mining does. Materials are recovered at a rate of up to 90 percent during strip mining, which is a much higher recovery rate than most forms of mining can promise.

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  • What Is Surface Mining? | Convergence Training

    Common Equipment Used in Surface Mining. There’s a specialized and diverse set of equipment commonly used during the surface mining process. If you’re going to work at a surface mine, it helps to know the names of the following equipment and what they’re used for. You may need to now how to operate them as well.

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  • 3 Methods of Coal Mining EzineArticles

    Jul 14, 2009· 1 Contour Mining: Contour Mining is most commonly used in areas that have steep or rolling terrain. It involves digging the earth above the coal line, or coal seam, along the contours of the hilly terrain. This method can be dangerous because it may cause landslides and erosion problems. 2 Strip Mining: Strip Mining usually occurs on flat ...

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  • UPDATE: Obama Ends 150Year War of StripMining in 24 ...

    Update: April 1, 2pm EST: The EPA announced a major move to clamp down on valley fill permits today! See Ken Ward's Coal Tattoo blog for updates and my new blog update on the Appalachian victory for the Clean Water Act. Obama Ends 150Year War of StripMining in 24 States: Mountaintop Removal Loses ...

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