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  • Disadvantages of Open pit mining answers

    The advantages of surface mining are * It is cheaper to extract the ore or metal than underground mining * Less chance of workers dying from toxic fumes, therefore it is safer unlike underground

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  • Underground versus Open Pit Mining Blogger

    Underground versus Open Pit Mining If you scan any news source these days, you will find countless stories about the worlds unquenchable desire for mineable resources like oil, coal, and precious metals. Recently, Firwin has begun to extend its reach into the ever growing world of mining. With this in mind, we thought this would be the

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  • The many advantages of underground mining

    Apr 27, 20150183;32;Enhancing its opencast operations with an underground mining could potentially increase the Kun Manie mine site by at least 19 percent. Choosing between open pit mining and underground mining is a decision that every mining company makes, but

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  • Open Cast Mining Advantages 911metallurgist

    In the previous topic, we saw which are some of the advantages that can make the surface open pit mining methods superior method compared to the underground mining. However, underground mining has its own advantages. And finally, the ultimate decision to mine from the surface or from underground comes down to the specific characteristics of the deposit.

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  • Open Pit Mining Methods

  • Pros and Cons of Strip Mining APECSEC

    Feb 25, 20150183;32;Pros and Cons of Strip Mining. Feb 25, 2015. 0. 27987. Share on Facebook. Tweet on Twitter. For those who are unfamiliar, strip mining is a form of surface mining that focuses on the collection of tar sand and coal, which both rest somewhat close to Earths surface. Those who support strip mining point to the increased ease of access and all

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  • Mining Sites The Transition from Open Pit to Underground

    Jul 10, 20190183;32;More often than not, mining sites are formed around their natural foundations. In order to optimize each pits efficiency, the mining space tends to merge the lands natural characteristics and man made features. Although many metal deposits arise through surface mining, there is an economical

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  • What are the Advantages and Disadvantages of underground

    Apr 12, 20090183;32;Advantages Underground mining (as compared to open pit exploitation) allows a mine operation to be largely 'hidden' having only adits or headframes protruding above the surface. This enables the land above the zone of mining to be reclaimed for other uses, after the mining has ceased, so much easier than in the case of an open pit.

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  • Underground versus Open Pit Mining Blogger

    Underground versus Open Pit Mining If you scan any news source these days, you will find countless stories about the worlds unquenchable desire for mineable resources like oil, coal, and precious metals. Recently, Firwin has begun to extend its reach into the ever growing world of mining. With this in mind, we thought this would be the

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  • Advantages and disadvantages of open pit mining LORECENTRAL

    Apr 02, 20180183;32;Advantages and disadvantages of open pit mining. Open pit mining is profitable when the deposit is not very deep or when the terrain is sandy or delicate, so that underground mining is not possible. Labor costs are lower, both in excavation and transportation, and allow the use of

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  • Do local communities benefit from mining? World Bank Blogs

    Do local communities benefit from mining? Norman Loayza; Jamele Rigolini a city of 70,000 inhabitants. Cerro de Pasco has been a mining center since the early 17 th century. It was initially renowned for silver extraction, but nowadays it also produces lead and zinc. In the middle of the city one can observe the highest open pit mine in the

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  • Open Cast Mining Advantages 911metallurgist

    In the previous topic, we saw which are some of the advantages that can make the surface open pit mining methods superior method compared to the underground mining. However, underground mining has its own advantages. And finally, the ultimate decision to mine from the surface or from underground comes down to the specific characteristics of the deposit.

    Contact Us
  • What Are the Disadvantages of Opencast Mining

    Full Answer. Surface coal mining, for example, has contaminated more than 5,000 miles of streams in the eastern United States, impacting aquatic ecosystems and public drinking water supplies. Although surface mining reduces production costs and poses fewer health dangers to miners compared to underground mining,

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  • Surface Mining Sustainable Development amp; Environmental

    Surface mines offer advantages and disadvantages when compared to underground mining. Amongst the advantages are that it is cheaper, can recover more of the resource (usually up to 100% within the mining excavation), is safer and can use larger scale mining equipment offering higher production rates.

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  • Environmental Risks of Mining

    Underground mining has the potential for tunnel collapses and land subsidence (Betournay, 2011). It involves large scale movements of waste rock and vegetation, similar to open pit mining. Additionally, like most traditional forms of mining, underground mining

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  • Open pit mining Britannica

    mining Open pit mining. Deposits mined by open pit techniques are generally divided into horizontal layers called benches. The thickness (that is, the height) of the benches depends on the type of deposit, the mineral being mined, and the equipment being used; for

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  • 1.1 PHASES OF A MINING PROJECT Home ELAW

    1.1.3.1 Open pit mining Open pit mining is a type of strip mining in which the ore deposit extends very deep in the ground, necessitating the removal of layer upon layer of overburden and ore. In many cases, logging of trees and clear cutting or burning of vegetation above the ore deposit may precede removal of the overburden. The

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  • Surface Mining Methods and Equipment

    UNESCO EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING Vol. II Surface Mining Methods and Equipment J. Yamatomi and S. Okubo 169;Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.

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  • Surface Mining Sustainable Development amp; Environmental

    Surface Mining. Surface mines offer advantages and disadvantages when compared to underground mining. Amongst the advantages are that it is cheaper, can recover more of the resource (usually up to 100% within the mining excavation), is safer and can use larger scale mining equipment offering higher production rates.

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  • Heap Leach Mining's breakthrough technology MINING.COM

    Aug 20, 20150183;32;Amid turmoil on commodity markets and a relentless drive by mining companies to increase efficiencies, heap leaching has emerged as a breakthrough technology experiencing stunning growth over the

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  • What are some of the most important disadvantages and

    Sep 05, 20160183;32;Underground Mining is a method of Mining, where the mineral is extracted without removing the top soil and rocks. In this way we do not disturb the surface feature such as forest, agriculture land, rivers and residential areas. The major disadvant

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  • Basics of an open pit mine Mine Engineer.Com

    Open pit mines can be used in coal mining, and they are used extensively in quot;hard rockquot; mining for ores such as metal ores, copper, gold, iron, aluminum, and many minerals. In a open pit coal mine, the pit bottom would be the bottom mined coal seam elevation, since it is usually feasible to extract multiple seams when surface mining coal.

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  • Open pit mining

    Open pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths. Additionally, open pit produces harmful pollutants depending on the type of mineral being mined, and the type of mining process being used.

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  • What are the advantages and disadvantages of open pit

    The Advantages of Open Pit Mining. Open pit mining does offer some advantages over traditional deep shaft mining. Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly. The working conditions are safer for the miners because there is no risk of cave in or toxic gas.

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  • What are some pros and cons of mining? Socratic

    Jun 09, 20170183;32;List of major aspects below In a nutshell, although it is an undeniable fact that mining affects our world enormously, we ought not to demonize its practice while its benefits are constantly enjoyed by the large majority of people. PROS I. Economic incomes. enormous earnings by exportation, private contracts II. Job offers/opportunities for locals.

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  • (PDF) Open Pit Coal Mines researchgate.net

    1 Advantages of surface mining. In comparison with ground mining, the coal surface mining has a lot of advantages as. follows 3 (1) Fig. 7 Open pit mining development history. Citations (0)

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  • Do local communities benefit from mining? World Bank Blogs

    In the middle of the city one can observe the highest open pit mine in the world, which extends about 2 kilometers and is almost 400 meters deep. In fact, the pit has swallowed most of the historic city center and represents a serious threat to public health. Resettlement of the city residents is now a necessity.

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  • Environmental Risks of Mining

    Underground mining has the potential for tunnel collapses and land subsidence (Betournay, 2011). It involves large scale movements of waste rock and vegetation, similar to open pit mining. Additionally, like most traditional forms of mining, underground mining

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  • Mining

    Techniques of surface mining include open pit mining, which is the recovery of materials from an open pit in the ground, quarrying, identical to open pit mining except that it refers to sand, stone and clay; strip mining, which consists of stripping surface layers off to reveal ore/seams underneath; and mountaintop removal, commonly associated

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  • What is a disadvantage for open pit mining? Answers

    As they dig a deep hole or pit to mine the ore they build roads up on the sides of the pit. Trucks carry the ore to the surface. Ores of copper and iron are obtained by open pit mining.

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