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Strip mining Britannica

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 overburden (if needed), stripping, removal of the coal or other mineral commodity, and reclamation.

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Strip Mining an overview ScienceDirect Topics

Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling. In contour or area stripping, the overburden is hauled with different equipment than what digs or removes the overburden. In strip mining, the overburden is mined and moved by the same equipment: draglines or continuous

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What is Strip Mining? Definition from Safeopedia

Nov 04, 2018· The second approach, called contour mining, is used on hilly terrain and involves stripping land in a manner that mirrors its topography. Safeopedia explains Strip Mining Strip-mining processes are subject to a variety of occupational and environmental health and safety regulations in any advanced country in which the activity is practiced.

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5 Chief Pros and Cons of Strip Mining ConnectUS

Aug 29, 2015· Usually, strip mining is employed in mining tar sand and coal. It’s a method referred to as open cast, open cut or stripping. First, the trees, shrubs and other structures in the area to be mined are removed a task accomplished with heavy duty bulldozers.

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Stripping ratio Wikipedia

In mining, stripping ratio or strip ratio refers to the amount of waste (or overburden) that must be removed to release a given ore quantity . It is a number or ratio that express how much waste is mined per unit of ore. The units of a stripping ratio can vary between mine types. For example, in coal mining the stripping ratio is commonly referred to as volume/weight. . Whereas in metal mining, stripping ratio is unitless and is expressed as weight/weight . A stripping ratio can be expressed as a ratio or as a number.

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Chapter 2: The Environmental Effects of Strip Mining The

THE. ENVIRONMENTAL. EFFECTS OF. STRIP MINING A ll mining operations have a disruptive effect on the environment, but the sheer volume of material involved in strip mining makes the impact on the environment especially acute. Surface mining (another name for "strip mining") can severely erode the soil or reduce its fertility; pollute waters or drain underground water reserves; scar or altar the

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“Giant Shovel on I-70”Ohio Strip Mine Fight: 1973 The

May 31, 2017· There were three of the giant machines at issue: The Tiger, The Mountaineer, and The GEM of Egypt.All three were then in the service of the Hanna Coal Company, which by 1970, had been strip mining in Ohio for decades and was then a division of the much larger Pittsburgh Consolidation Coal Company, later known as “Consol,” itself then owned by Continental Oil.

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Plundering Appalachia The Tragedy of Mountaintop-Removal

Mountaintop removal is strip-mining on steroids. Massive dump trucks, huge bulldozers, and ten-story-high draglines can undo in months what geological processes took millions of years to build. Typically, multiple coal seams are exposed as a mountaintop-removal operation dismantles the

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History of Illinois Coal Mines Coal and Coal Mining by

Coal being a non-renewable natural resource, strip mining is a conservation measure. In strip mining, 95% to 98% of the coal is recovered whereas in shaft mines the basis of recovery is from 50% to 60%. Since strip mining began in Illinois to the end of 1953, 339,414,839 tons

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Strip Mining an overview ScienceDirect Topics

Strip mining is fundamentally different from contour or area mining on how the overburden is displaced, called spoil handling. In contour or area stripping, the overburden is hauled with different equipment than what digs or removes the overburden. In strip mining, the overburden is mined and moved by the same equipment: draglines or continuous

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Stripping Ratios: What are They and Why are They Important

Oct 31, 2018· A strip ratio, or stripping ratio, is an important measurement related to the open-pit mining process. It represents the amount of waste material, also known as

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5 Chief Pros and Cons of Strip Mining ConnectUS

Aug 29, 2015· Usually, strip mining is employed in mining tar sand and coal. It’s a method referred to as open cast, open cut or stripping. First, the trees, shrubs and other structures in the area to be mined are removed a task accomplished with heavy duty bulldozers.

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Big Hog strip mine shovel The Pop History Dig

Mar 21, 2014· As large-scale strip mining ensued there from the early 1960s through the 1970s, a substantial land area near Paradise, Kentucky encompassing some thousands of acres would be stripped.. In those days, especially during the 1960s and most of the 1970s, strip mine regulation and land reclamation, then governed by state laws, were minimal at best.

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How to Strip mine Planet Minecraft

Jul 10, 2012· nice another thing that helps with strip mining is, enchanted diamond tools because you have so manny of them it is easy to have all of your tools be diamond, and when they are enchanted they digging goes by faster, longer, and easer. 1. 07/11/2012 10:45 am. Level 51: Grandmaster Blob.

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Strip Mining Stock Photos And Images 123RF

#147937210 Huge bucket wheel excavator or mobile strip mining machine mining.. Similar Images . Add to Likebox #126350312 Two cryptocurrency bitcoin over Exposed and Developed old film.. Similar Images . Add to Likebox #110881910 Aerial view industrial of opencast mining quarry with lots of..

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What Is The Best Y Coordinate To Strip Mine At? Hypixel

May 09, 2017· I would recommend to strip mine at y11, this is because it is above lava and you can find any ores at this level. If you bring a water bucket you can pour it over any lava you mine into. Therefore in my opinion y11 is the best level to strip mine. I hope this helps, good luck finding diamonds!

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Caving VS Strip Mining Survival Mode Minecraft: Java

Mar 14, 2016· According to the Cambridge Dictionary, strip mining is "a method of obtaining substances such as coal from the ground that involves removing the top layer of soil instead of digging deep holes underground" Last edited by Cryptopian: Mar 14, 2016 #14 Mar 14, 2016. The_Strange_Traveler. The_Strange_Traveler

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