stripping ratio mining

Stripping Ratios: What are They and Why are They

31/10/2018  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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Stripping Ratio Mineral Production Activities ...

6. Stripping ratio . The main factor in designing a n open pit mine, which largely determines the cost of mining, is the stripping ratio.. Stripping is the removal of waste rock from above and around the orebody. Stripping ratio is defined as the tonnage of waste rock to be mined, divided by the tonnage of ore to be mined from the pit.

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What Is a Stripping Ratio? (with picture)

21/02/2021  The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process. In relation to its application in the mining of ore, the utility of the stripping ratio is the determination of the approximate ratio of waste material that must be moved in order to reach a certain ratio of ore. As can be seen, when the ratio of unwanted ...

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(PDF) Stripping Ratios, Pit Limits Cutoff Grade ...

Stripping RatiosThe stripping ratio (SR) refers to the amount of waste that must be removed for a given quantity of ore in open pit mining.It is most commonly expressed as: Stripping RatiosInstantaneous stripping ratio: The stripping ratio for a given push back Overall stripping ratio: The stripping ratio for the total amount of material removed. Break-even stripping ratio:The instantaneous ...

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How to calculate stripping ratio? - ResearchGate

The stripping ratio (SR) refers to the amount of waste that must be removed for a given quantity of ore in open-pit mining. It is commonly expressed as: It is commonly expressed as: SR=Waste (tons ...

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Whats the average stripping ratio of open pit mines around ...

The stripping ratio in a mine is chosen based on economics. A high grade orebody can support a high stripping ratio. A low grade ore body cannot support a high stripping ratio. Thus you may have a ...

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Basic Mining Techniques

Basic Mining Techniques

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India Coal: Stripping Ratio - CEIC Data

India’s Coal: Stripping Ratio: Private Sector: Castron Mining Limited data was reported at 8.830 % in 2006. This records a decrease from the previous number of 31.000 % for 2005. India’s Coal: Stripping Ratio: Private Sector: Castron Mining Limited data is updated yearly, averaging 19.915 % from Mar 2005 to 2006, with 2 observations. The data reached an all-time high of 31.000 % in 2005 ...

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Surface mining planning and design of open pit mining

09/01/2016  vii) Stripping Ratio The ratio is most commonly expressed as: Strip Ratio (SR) is the mass of waste to be mined to obtain one unit mass of ore. Waste (tons) SR = ----- Ore (tons) For example, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. • Syncrude Tar Sands: SR = 1.2 - 1 ...

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Stripping ratio - Wikipedia

In surface 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.

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Break-even stripping ratio Britannica

In coal mining: Contour strip mining. If the break-even stripping ratio remains favourable, further cuts into the hillside will be made. Otherwise, if there are sufficient reserves under the knob of the hill, the coal may be recovered by underground mining or by augering. Read More; Inspire your inbox – Sign up for daily fun facts about this day in history, updates, and special offers. Enter ...

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(PPT) Calculating Stripping Ratios for Area Strip Mines ...

Books such as “Elements of Practical Coal Mining” and SME’s “Surface Mining” were specifically referenced Stripping Ratio as a Fundamental • Ability to surface mine depends on the value of the ore being high enough to offset the cost of Overburden Removal – Stripping Ratio determines relative amounts of each to be moved • If coal generates a $5/ton earning and overburden costs ...

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Basic Mining Techniques

Basic Mining Techniques

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Surface Mining Methods - ILO Encyclopaedia

The fraction of waste rock to ore excavated is defined as the stripping ratio. Stripping ratios of 2:1 up to 4:1 are not uncommon in large mining operations. Ratios above 6:1 tend to be less economically viable, depending on the commodity. Once removed, overburden can be used for road and tailings construction or may have non-mining commercial value as fill dirt. Mining equipment selection ...

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Understanding Iron Ores and Mining of Iron Ore – IspatGuru

03/04/2015  The depth to which open pit mining is carried depends upon the grade of the ore, the nature of the overburden and the stripping ratio. The stripping ratio is the amount of overburden and waste that has to be handled for each unit of ore mined. It is described as the unit of the overburden that must be removed for each unit of crude ore mined. Stripping ratios increase with the quality of the ...

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Surface mining planning and design of open pit mining

09/01/2016  vii) Stripping Ratio The ratio is most commonly expressed as: Strip Ratio (SR) is the mass of waste to be mined to obtain one unit mass of ore. Waste (tons) SR = ----- Ore (tons) For example, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. • Syncrude Tar Sands: SR = 1.2 - 1 ...

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Surface Mining Techniques used in the Oil Sands Oil ...

03/03/2021  The strip ratio (SR) is the simplest measure of mining efficiency. Strip ratio is the fraction of overburden (or waste ore) versus the weight of bitumen-rich oil sands. A strip ratio of 2 is considered high but feasible if the ore grade is high enough. A better measure of mining economics is the TV:BIP ratio. TV:BIP is defined as the total mining volume (TV) divided by the volume of bitumen ...

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India Coal: Stripping Ratio - CEIC Data

India’s Coal: Stripping Ratio: Private Sector: Castron Mining Limited data was reported at 8.830 % in 2006. This records a decrease from the previous number of 31.000 % for 2005. India’s Coal: Stripping Ratio: Private Sector: Castron Mining Limited data is updated yearly, averaging 19.915 % from Mar 2005 to 2006, with 2 observations. The data reached an all-time high of 31.000 % in 2005 ...

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New guidance on accounting for stripping activities – a ...

between normal mining activities and a stripping activity. Management will need to identify the associated component of the ore benefiting from the stripping activity; and setting up the amortisation calculations, which will be more complex than what many companies are used to. Given the increased involvement of management and the data gathering exercise, implementation will be costly for many ...

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What is stripping ratio in mining? - Quora

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore. For example, a 3:1 stripping ratio means that mining one tonne of ore wil...

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TV:BIP Ratio Explained: The Economics of Oil Sands

03/03/2021  The strip ratio (SR) is the simplest measure of mining efficiency. Defined as the weight of overburden (or waste ore) divided by the weight of oil sands ore, a strip ratio of 2 is considered high but feasible if the ore grade is high enough. A better measure of mining economics is the TV:BIP ratio. TV:BIP EXPLAINED. TV:BIP is a ratio of the total volume of oil sands mined (TV) to the total ...

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Stripping ratio Article about stripping ratio by The ...

He said stripping ratio and heating value of Thar Bloc II was feasible for successful mines operations and that Lignite could be utilised in power plants both at mines mouth as well as suitable locations as Jamshoro, mainly because Lignite can be transported to other places-as done in

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Surface Mining Methods - ILO Encyclopaedia

The fraction of waste rock to ore excavated is defined as the stripping ratio. Stripping ratios of 2:1 up to 4:1 are not uncommon in large mining operations. Ratios above 6:1 tend to be less economically viable, depending on the commodity. Once removed, overburden can be used for road and tailings construction or may have non-mining commercial value as fill dirt. Mining equipment selection ...

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24th clip Surface Mining (Stripping Ratio) - YouTube

22/11/2016  Mining Engineering and Basic Knowledeg

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Surface mining planning and design of open pit mining

09/01/2016  vii) Stripping Ratio The ratio is most commonly expressed as: Strip Ratio (SR) is the mass of waste to be mined to obtain one unit mass of ore. Waste (tons) SR = ----- Ore (tons) For example, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. • Syncrude Tar Sands: SR = 1.2 - 1 ...

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Lecture 4: Mining waste - SGU

The ratio between waste rock and ore production is called the stripping ratio. For example, a stripping ratio of 2:1 means that 2 tonnes of waste rock needs to be mined to mine 1 tonne of ore. Generally, an open pit mine has a higher stripping ratio than an underground mine. Waste rock is often stored close to the mine to minimize transports ...

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Mine wastes management - Mining and Blasting

For example a stripping ratio of 4:1 means that 4 tonnes of waste rock are removed to extract one tonne of ore. Lower the ratio, the more productive the mine. Stripping ratio varies with the area under mining. For example, stripping ratio of limestone in Himachal Pradesh is almost zero whereas in Rajasthan it is 0.308 (i.e. 300 kg of waste per tonne of limestone mined).11 The overburden ratio ...

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Surface Mining Techniques used in the Oil Sands Oil ...

03/03/2021  The strip ratio (SR) is the simplest measure of mining efficiency. Strip ratio is the fraction of overburden (or waste ore) versus the weight of bitumen-rich oil sands. A strip ratio of 2 is considered high but feasible if the ore grade is high enough. A better measure of mining economics is the TV:BIP ratio. TV:BIP is defined as the total mining volume (TV) divided by the volume of bitumen ...

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New guidance on accounting for stripping activities – a ...

between normal mining activities and a stripping activity. Management will need to identify the associated component of the ore benefiting from the stripping activity; and setting up the amortisation calculations, which will be more complex than what many companies are used to. Given the increased involvement of management and the data gathering exercise, implementation will be costly for many ...

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