coal countur surface strip mining

Strip Mining for Coal - YouTube

Sep 11, 2015· Almost 20 years since the strip mine began and it is still going strong here in Stellarton, Nova Scotia. ... Strip Mining for Coal JimHowDigsDirt. Loading... Unsubscribe from JimHowDigsDirt?

e-WV | Surface Mining

Surface mining allows the removal of coal from the surface rather than through underground tunnels. It requires the stripping away of earth, rock, and vegetation (collectively known as overburden) from above the coal deposit, which can then be mined and trucked away.

5 Chief Pros and Cons of Strip Mining – ConnectUS

Surface mining refers to a category of mining where soil and rock overlying the mineral deposit are removed. There are several types of surface mining, and strip mining counts as one of them. In strip mining, a thin layer of material known as an overburden is removed so that access is made to the minerals buried underneath.

5 Chief Pros and Cons of Strip Mining – ConnectUS

5 Chief Pros and Cons of Strip Mining. Sep 24, ... There are several types of surface mining, and strip mining counts as one of them. ... West Virginia were once booming coal mining towns. They were covered in trees and local fauna. Now, they are barren and unrecognizable.

Strip Mining, Open-pit 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 open-pit mining.

Coal Contour Surface "Strip" Mining - Mine Engineer.Com

The Contour or Bench method of surface or strip mining is usually associated with coal, where a seam or multiple seams are located at a certain elevation or elevations through a mountain or hill.

Surface Coal Mining in Appalachia | US EPA

Surface coal mining methods in the steep terrain of the central Appalachian coalfields include mountaintop removal, contour, area and highwall mining. Coal mining operations are found in Kentucky, West Virginia, Virginia, Maryland, Pennsylvania, Ohio, Alabama and Tennessee.

Coal Countur Surface Strip Mining - podnosniki-samochodowe.eu

Contour strip mining is a method of surface mining or in which bulldozers, power shovels, or stripping wheels are used to remove large chunks of earth in terraced strips in order to extract coal from a seam or series of seams on a hill or mountain.

Surface Coal Mining in Appalachia | US EPA

Coal is mined in Appalachia by both surface and underground mining techniques. Surface coal mining methods in the steep terrain of the central Appalachian coalfields include mountaintop removal, contour, area and highwall mining. Coal mining operations are found in Kentucky, West Virginia, Virginia ...

Basic Information about Surface Coal Mining in Appalachia ...

Once coal removal is complete, final regrading takes place and the area is revegetated. The operation is required to reclaim the mine to "AOC" or "approximate original contours" unless this requirement has been waived by the agency that has granted the Surface Mining Control and Reclamation Act of 1977 (SMCRA) permit for the operation. Top of Page

Surface Mining Animation - YouTube

Jan 20, 2014· See what Vermeer surface mining equipment can do for you. - Patented tilting capability - Vertical wall capability - Mine in layers - Selective piling - Sele...

Underground v.s. Surface Coal Mines: Is Deep Drilling ...

Trucks and shovels are used to remove excess fragments as a drill systematically bores into the mine, stripping it of coal, typically recovering a higher proportion of the coal deposits than underground mining. Strip mining is sensible when the ore body is near the surface.

Strip Mining: Methods of Control by the Three Levels of ...

STRIP MINING: METHODS OF CONTROL BY THE THREE LEVELS OF GOVERNMENT M. DEBORAH BENOIT* INTRODUCTION Recent devastation of the landscape by strip mining operators is by now a familiar story to all concerned with the environment. The arid and bleak landscapes that are the left-over product of strip mining

Contour-mining - energy.kth.se

Contour-mining. The Contour or Bench method of surface or strip mining is usually associated with coal, where a seam or multiple seams are located at a certain elevation or elevations through a …

Open-pit Mining, Opencast Mining, Open-cut Mining, Strip ...

The most economical method of extracting coal depends upon the depth and the quality of the coal seams. Coals are mined both from surface and underground. Contour mining is associated with coal. This bed of coal is located at an elevation in a mountain range or any other hilly area. It is a method of strip or surface mining.

Coal mining | Britannica.com

Coal mining: Coal mining, extraction of coal deposits from the surface of Earth and from underground. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and 19th

Surface Mining Test 2 Flashcards | Quizlet

Surface Mining Test 2. STUDY. PLAY. Surface Mining Methods in Hilly Terrain - Contour Strip Mining ... - done immediately after contour strip mining. Contour - (Auger/Highwall) Depth of Penetration is dependent on... - seam thickness ... - works well when upper coal surface is a roadbed - easy to maintain pit floor grade - lowered possibility ...

Strip Mining - an overview | ScienceDirect Topics

Bruce G. Miller, in Coal Energy Systems,. 2005 Surface Mining. Surface mining of coal is an alternative to underground mining and is practiced as strip mining, the most common form, and auger mining.Some coal is also produced through dredging and culm bank (i.e., anthracite waste piles) recovery; however, these quantities are relatively small compared to underground, strip, and auger mining.

coal countur surface strip mining - amjstationery.in

Contour strip mining is a method of surface mining or in which bulldozers, power shovels, or stripping wheels are used to remove large chunks of earth in terraced strips in order to extract coal from a seam or series of seams on a hill or mountain.

Contour strip mining | coal mining | Britannica.com

association with auger mining. In auger mining. Augering is usually associated with contour strip-mining, recovering coal for a limited depth beyond the point where stripping becomes uneconomical because the seam of coal lies so far beneath the surface. Read More; surface coal mining

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.

Plundering Appalachia - The Tragedy of Mountaintop-Removal ...

Coal mining is far and away the largest industrial consumer of explosives in the United States. According to government figures for 2005, more than 1.8 billion pounds of high explosives were used in West Virginia and Kentucky alone, primarily in surface-mining operations.

More than half of the U.S. coal mines operating in 2008 ...

Surface mining techniques are categorized as either strip, open pit, or mountaintop removal. Strip mining is a method used on flat terrain and involves removing soil or rock above a layer of coal, exposing the coal seam for mining. One type of strip mining is contour mining, where extraction activities occur on a hillside.

contour mining definition - perkinspreschool.com

Jun 30, 2018· Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a "Contour mining " involves removing the overburden above the mineral seam near the outcrop in hilly terrain, where the mineral outcrop usually

CH 15 Flashcards | Quizlet

Type of surface mining that uses explosives, massive shovels, and even larger machinery called draglines to remove the top of a mountain to expose seams of coal underneath a mountain. Compare area strip mining, contour strip mining.

area strip mining Flashcards | Quizlet

area strip mining type of surface mining used where the terrain is flat. an earthmover strips away the overburden, and a power shovel digs a cut to remove the mineral deposit. The trench is then filed with overburden and a new cut is made parallel to the previous one

STRIP MINING - Coal Sales Online

Strip mining is accomplished by two techniques; area stripping and contour stripping. Where coal seams are relatively flat and near the surface. In area strip mining, the overlying material is removed from the seams of coal. Area strip mining is removed in long narrow bands, or strips, followed by removal of the exposed coal.

Obama Ends 150-Year War of Strip-Mining in 24 States! | Grist

Apr 01, 2010· Obama Ends 150-Year War of Strip-Mining in 24 States! ... A History of Opposition to Surface Coal Mining in Appalachia, ... And the 150-year war of strip-mining …