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advantages of openpit mining

The Advantages of Open Pit Mining Sciencing

The Advantages of Open Pit Mining Cost. The cost advantage of open pit mining to investors is a matter of scale. According to the Delta Mine Training Mechanical Advantage. Open pit mining offers an advantage over shaft mining in that it is

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Advantages and disadvantages of open pit mining

Advantage: 1. Better recovery of the volume of exploitable ore 2. More flexible planning as the pit progresses. 3. Risk levels at work decrease. 4. Mechanization has no limits in terms of the dimensions of the equipment. 5. The effort and safety conditions of

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Open Pit Mining Advantages Mineral Production Activities

The advantages of open pit mining There are a number of advantages of open pit mining when compared to Underground Mining: Open pits can sometimes be brought into production quickly. Underground mining requires development (shaft sinking, adits, declines etc.) which might take years before production can start.

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Open-pit Mining Mining North Works

The main cost advantage of open-pit mining is that it allows mining with more efficient larger equipment. This means faster production and mining of lower grades of ore is possible. It also means potentially bigger revenues early as the mine prepares to go

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ehow advantages and disavantages openpit of mining

Advantages and disadvantages of open pit mining LORECENTRAL Apr 02, 2018Disadvantages of open pit mining One of the main disadvantages of this type of mining operation is the environmental impact it caus Since cyanide, mercury and sulfuric acid are used to remove the wastewater, groundwater and air are contaminated as toxic dust.

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Open-Pit Strip Mining Advantage And Disadvantages

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. Get Price. News. Disadvantages of Open-pit mining answers. The advantages and disadvantages of mining

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Basics of openpit mining SlideShare

13/03/2012· Stripping ratio depending on quality of the coal ISN 15. Advantages of opencast mining There is no problem of ventilation There is no problem of Roof control, supports There is no problem of lighting in daytime.Percentage of coal extraction is much higher (about90%) than that of Underground mining (30-60%) High OMS Much productivity / profits.

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Planning of open pit mines on a risk basis

Open pit mining becomes most effective for large tonnages due to the high degree of mechanisation that can be achieved, resulting in low unit operating costs making lower grade deposits more viable; high tonnages also imply a higher capital risk off-setting the advantage of low

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Open Pit Mining Disadvantages Mineral Production

Disadvantages of open pit mining. However, disadvantages when compared to Underground Mining also exist: Very large amounts of waste rock are mined. This creates costs as well as environmental issues with waste rock disposal; Major disruption of surface: pit footprint, waste dumps. High visual impact, especially strip mining.

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Advantages of underground mining? Yahoo Answers

01/08/2007· Advantages of underground mining: (1) Less loss of land (2) Minimum dust pollution (3) Minimum noise pollution (4) Lack of near-surface deposits may make underground mining the only method. (5) Unfavorable geologic structure may require that a surface mine move underground to follow a particular bed. (6) More efficient use of reserves may be possible by underground mining in areas

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Open pit mining pros & cons

The biggest advantage of open pit mining is the relatively low cost-extraction ratio. Open-pit mines are chosen when deposits of valuable minerals are found beneath the surface and where there overburden (overlaying rock or earth) is relatively thin. This means that no extensive tunnel network is required and no costly structural supports. Furthermore, large trucks can enter an open-pit mine

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Open-Pit Strip Mining Advantage And Disadvantages

Advantages and disadvantages of open pit mining ~ 02/04/2018· Disadvantages of open pit mining. One of the main disadvantages of this type of mining operation is the environmental impact it causes. Since cyanide, mercury and sulfuric acid are used to remove the wastewater, groundwater and air are contaminated as toxic dust . This is absorbed by animals and plants. The Advantages of Open Pit

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What Is Open-Pit Mining? (with picture) wiseGEEK

21/02/2021· One of the advantages of the open-pit mining system is the fact that it is not as capital or labor intensive as the underground method of mineral or precious metal and stone extraction. The process of open-pit mining is precipitated by the analysis of the area in order to determine the presence of the desired material that may be coal or ore. If it is determined that the desired materials are

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Basics of openpit mining SlideShare

13/03/2012· Advantages of opencast mining There is no problem of ventilation There is no problem of Roof control, supports There is no problem of lighting in daytime.Percentage of coal extraction is much higher (about90%) than that of Underground mining (30-60%) High OMS Much productivity / profits. Quick returns on capital investment. Dangers & Hazards are less compare to U/G Mines. There is no

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ENVIRONMENT: THE PROS AND CONS OF MINING

09/08/2018· “Open-pit mining entails the removal of any overburden in order to expose the mineral deposit,” the book says. “This operation is dependent on the type of overburden. In cases where the overburden consists of highly consolidated rock, blasting is used.” Open-pit mining may cheaper when compared to other methods, but it is not environmentally-sound. “Open-pit mining clears the

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Surface Mining Methods and Equipment

description includes a comparison of the advantages and disadvantages of surface and underground mining as well as brief explanations of open pit, open cast, placer, and solution mining operations. Section 2 describe s surface mining equipmen t with particular focus on relatively large machines such as bucket wheel excavators, large shovels and draglines. 1. Surface Mining Methods After a

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Do local communities benefit from mining?

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. There is no doubt that the mining boom in Peru, from a national perspective

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10 Different Types of Mining Operations and Mines

There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time. Highwall mining is also safer than other types of mining, and when, it occurs at the surface, it often produces the same amount of output as mining underground does. Smaller blocks of coal can be accessed with high wall mining, and operations can take place

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Advantages of underground mining? Yahoo Answers

01/08/2007· Advantages of underground mining: (1) Less loss of land (2) Minimum dust pollution (3) Minimum noise pollution (4) Lack of near-surface deposits may make underground mining the only method. (5) Unfavorable geologic structure may require that a surface mine move underground to follow a particular bed. (6) More efficient use of reserves may be possible by underground mining in areas

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What are the pros and cons of subsurface mining? Quora

Advantages of underground mining: *less surface disturbance *less environmental disturbance *less waste mined per tonne of ore *ability to mine resources that are not economic as a surface mine *cheaper to set up mine development for deep ore depo...

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