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contour mining definition
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Contour mining definition - Law Insider
Define Contour mining. means a method of surface coal mining that involves making an initial mining cut along the contour of a hillside to the maximum highwall height and then making subsequent cuts along the same contour, placing spoil in the preceding cut where the coal has been removed.
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Definition of contour mining - Mindat.org
Definition of contour mining. Surface mining that progresses in a narrow zone following the outcrop of a coal seam in mountainous terrain, and the overburden, removed to gain access to the mineral commodity, is immediately placed in the previously mined area, such that reclamation is carried out contemporaneously with extraction. Ref: SME, 1.
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Coal Surface Mining, Contour Mining - Mine Engineer.Com
2001-12-9 Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam. Quite often, contour mining is utilized in more than one location on the same mountain. The process of contour mining begins with
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Contour strip mining coal mining Britannica
In coal mining: Mining methods be broadly classified into (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining. Read More
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Open-pit Mining, Opencast Mining, Open-cut Mining, Strip ...
2021-5-7 Contour Mining. COAL, one of the most important mineral has been valued for many purposes since 1880's and it has been used to generate electricity and utilized for multipurpose operations. The process of Coal mining has developed over the years and different methods have been evolved to extract the mineral which is available in different ...
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Strip mining Britannica
2021-5-27 Contour mining progresses in a narrow zone following the outcrop of a mineral seam in mountainous terrain. In the past, strip-mined mineral deposits that became exhausted or uneconomical to mine often were simply abandoned.
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CONTOUR meaning in the Cambridge English Dictionary
the shape of a mass of land or other object, especially its surface or the shape formed by its outer edge: the rugged contour of the coast He studied the contours of her face. Her latest collection of swimwear
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Glossary of Mining Terms - Coal Education
2018-1-4 Contour - An imaginary line that connects all points on a surface having the same elevation. Conventional mining – The first fully-mechanized underground mining method involving the insertion of explosives in a coal seam, the blasting of the seam, and the removal of the coal onto a conveyor or shuttle car by a loading machine.
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Shaping the Future of Mining Construction Contour
Contour is made up of hard-working people who love moving earth. Headquartered in Columbia, South Carolina, we serve our customers across the Southeast on a variety
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Contour Definition of Contour by Merriam-Webster
Contour definition is - an outline especially of a curving or irregular figure : shape; also : the line representing this outline. How to use contour in a sentence. Synonym Discussion of contour.
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Definition of Contour mining
2018-3-23 Contour mining The term 'Contour mining' as it applies to the area of energy can be defined as ' is practiced when the coal is mined on hillsides. The mining follows the contour of the hillside until the overburden becomes uneconomical to remove. This method creates a shelf, or bench, on the hillside. Several variations of contour mining have ...
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Coal Surface Mining, Contour Mining - Mine Engineer.Com
2001-12-9 Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam. Quite often, contour mining is utilized in more than one location on the same mountain. The process of contour mining begins with constructing roads to access the coal seam elevation and the top or the mountain. A bench is excavated in the mountain ...
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Open-pit Mining, Opencast Mining, Open-cut Mining, Strip ...
2021-5-7 Contour Mining. COAL, one of the most important mineral has been valued for many purposes since 1880's and it has been used to generate electricity and utilized for multipurpose operations. The process of Coal mining has developed over the years and different methods have been evolved to extract the mineral which is available in different ...
Read More
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contour mining - crinkleybottompark.co.za
Contour Mining Flashcards. Contour Mining in Opposite Directions - provides sufficient room for equipment - two operating faces with identical equipment - require one access road - more consistent flow of coal production - if breakdown in equipment, can combine into one face. Auger and Highwall Mining.
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Contour Milling/Profiling - CNC Term Definition Owens ...
Contour Milling/Profiling – Contour milling produces a continuous curve of various degrees. Contour milling requires extensive knowledge of complex programs and machinery to produce ultra-precise tolerances and angles. Incredibly intricate industrial components and even works of art can be milled from massive blanks using contour milling.
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CONTOUR meaning in the Cambridge English Dictionary
contour definition: 1. the shape of a mass of land or other object, especially its surface or the shape formed by its. Learn more.
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Contour - definition of contour by The Free Dictionary
Define contour. contour synonyms, contour pronunciation, contour translation, English dictionary definition of contour. n. 1. a. The outline of a figure, body, or mass. See Synonyms at form. b. A line that represents such an outline. See Synonyms at outline. 2.
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Strip mining Britannica
2021-5-27 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 strip-mining techniques are classified as area mining or contour mining on the basis of the deposit geometry and type. The cycle of operations for both techniques consists of vegetation clearing, soil removal, drilling and blasting of ...
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Contour Definition of Contour at Dictionary
Contour definition, the outline of a figure or body; the edge or line that defines or bounds a shape or object. See more.
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What Is Surface Mining? Types of Surface Mining
These mining categories are: strip mining, open-pit mining, mountaintop removal, dredging and high wall mining. All methods of surface mining will remove the waste material, or overburden, above the desired resource. Surface mining is often preferred to sub-surface (underground mining) by mining
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Coal Surface Mining, Contour Mining - Mine Engineer.Com
2001-12-9 Contour mining allows for the partial removal of the coal seam at the elevation of the coal seam. Quite often, contour mining is utilized in more than one location on the same mountain. The process of contour mining begins with constructing roads to access the coal seam elevation and the top or the mountain. A bench is excavated in the mountain ...
Read More
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Open-pit Mining, Opencast Mining, Open-cut Mining, Strip ...
2021-5-7 Contour Mining. COAL, one of the most important mineral has been valued for many purposes since 1880's and it has been used to generate electricity and utilized for multipurpose operations. The process of Coal mining has developed over the years and different methods have been evolved to extract the mineral which is available in different ...
Read More
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contour mining - crinkleybottompark.co.za
Contour Mining Flashcards. Contour Mining in Opposite Directions - provides sufficient room for equipment - two operating faces with identical equipment - require one access road - more consistent flow of coal production - if breakdown in equipment, can combine into one face. Auger and Highwall Mining.
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Chapter 2: The Environmental Effects of Strip Mining - The ...
2021-5-13 Contour Mining. The contour method is used almost exclusively in the steep Appala chian region of the United States, where coal seams outcrop from the sides of hills or mountains. Contour mining makes cuts on the slope where the coal seam is located, to remove first the overburden and then the coal itself. Overburden from adjacent cuts is ...
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Glossary of Mining Terms - Coal Education
2018-1-4 A. Abutment - In coal mining, (1) the weight of the rocks above a narrow roadway is transferred to the solid coal along the sides, which act as abutments of the arch of strata spanning the roadway; and (2) the weight of the rocks over a longwall face is transferred to the front abutment, that is, the solid coal ahead of the face and the back abutment, that is, the settled packs behind the face.
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Lecture Notes for Chapter 3 Introduction to Data Mining
2007-3-9 –In data mining, clustering and anomaly detection are major areas of interest, and not thought of as just exploratory ... Visualization Techniques: Contour Plots
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Strip Mining - an overview ScienceDirect Topics
Andrew P. Schissler, in Encyclopedia of Energy, 2004 2.3 Strip Mining. Strip mining is employed in coal reserves where the overburden is removed in rectangular blocks in plan view called pits or strips. The pits are parallel and adjacent to each other. Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling.
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Surface mining - Wikipedia
2021-4-24 Surface mining, including strip mining, open-pit 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 the overlying rock is left in place, and the mineral is removed through shafts or tunnels.
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What is Contour Plowing? - Definition from Safeopedia
2021-5-27 Contour plowing is the act of farming on a hill or a contoured area. The plow follows the contours of the land horizontally helping to reduce runoff of water. This practice helps to prevent soil erosion in hilly and contoured areas by capturing the water runoff using water breaks to
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What is Longwall Mining? (with pictures)
2021-1-30 Longwall mining is a highly productive underground coal mining technique. Longwall mining machines consist of multiple coal shearers mounted on a series of self-advancing hydraulic ceiling supports. The entire process is mechanized. Longwall mining machines are about 800 feet (240 meters) in width and 5 to 10 feet (1.5 to 3 meters) tall.
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