stripping ratio calculation in mining

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A new method to confirm the economic and reasonable ,

Sep 14, 2010 0183 32 Abstract Economic rationality is currently open pit stripping ratio is well calculated by comparing the cost of industrial exploitation, the calculation does not take into account the safety of mining work well accidents, such as surface subsidence caused by enormous economic losses, but also did not consider the open-pit mining on the ecology of environmental damage and environmental ....

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FASB Emerging Issues Task Force

company generally is mining a ratio of waste material to mineral deposits that is different from the stripping ratio Refer to Exhibit 04-6A for an illustration of a cross section of a mine and calculation of a deferred stripping ratio For each period, the actual stripping ,...

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stripping ratio mining Britannica

Other articles where stripping ratio is discussed coal mining Choosing a mining method ,calculated with the aid of stripping ratios, which represent the amount of waste material that must be removed to extract a given amount of coal Stripping ratios can also consider the selling price of coal, and a certain minimum profit can be added to the total cost of producing and,...

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Stripping ratio and pit limit

Jul 26, 2017 0183 32 The units for stripping ratios can vary and usually depends on the geological properties of the deposit and the commodity mined It can be expressed in tonnes t , or cubic meters m 3 Usually for coal, cubic meters m 3 or tonnes t are usedHowever, for hard rock mines where the geology is usually complex with the presence of various rock types, tonnage t is usually preferred...

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Modeling for the Steady State Production of Large Open ,

Stripping ratio= weight of recoverable mineral reserve in tone / volume of over burden in cubic meter 13 BREAKEVEN STRIPPING RATIO The point beyond which the mineral/ coal cannot be economically extracted out is called the break even stripping ratio Factors which play a great role in the stripping ratio calculation are - Cost of stripping...

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idealratioforironore

Stripping Ratio Calculation In Mining cz eu eu Stripping Ratio Calculation In Mining In coal mining what is a good strip ratio answers In coal mining what is a good strip ratio How do you calculate stripping ratio for Open Pit Mines Overburden tons ore tons Share to Bmartin344233233 Get Price And Support Online CHAPTER 11 Mining Technology...

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Overburden management in open pits options and limits in ,

Mar 01, 2019 0183 32 Overburden handling has important impacts on surface mining projects and has to be carefully planned considering both mining activities and site rehabilitation , Overburden handling activities start at the beginning of the mining project, when a huge amount of material from initial underground development or stripping is removed for site preparation ,...

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Economic Surface Mining of Multiple Seams

Mulliple-scam mining is a very important phase of the stripping industry in the United States today As in the casc of conventional stripping, multiple-seam slrip-miuing is classified either as area or contour mining Area strip-mining is practiced on relatively flat terrain A box cut is made...

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What is stripping ratio in mining?

Answer 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 will require mining three tonnes of waste rock...

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stripping ratiopdf

After going through this lecture you will be able to 1 list and define stripping ratios K, C 2 calculate various stripping ratios for given situations C, Ap 3 explain the influence of stripping ratios on planning decisions A, S 4 assess the most economic method of mineability of a deposit by surface mining or underground mining from the ....

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Introductory Mining Engineering Problem 62 Chegg

Introductory Mining Engineering Problem 62 Calculate the maximum stripping ratio and the overall stripping ratio for the open pit shown Stripping allowance 150/ton of ore Stripping cost 025/yd3 of overburden Pit slope 65degre Berm at top of ore 25degre Dip of bed 0 degree Ore thickness 40ft...

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How do you calculate the stripping ratio?

Jun 06, 2009 0183 32 We divide the overburden thickness by ore thickness to get the stripping ratio For example if we have an overburden thickness of 80m and ore ,...

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Open Pit Mining IntechOpen

Feb 17, 2021 0183 32 Also, the ratio of the total volume of waste to the total volume of ore is defined as the overall stripping ratio A lower stripping ratio means that less waste has to be removed to expose the ore for mining which generally results in a lower operating cost The major types of stripping ratios are overall, instantaneous, and break-even...

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Surface mining planning and design of open pit mining

Jan 09, 2016 0183 32 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...

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PDF Surface Mine Design

AVERAGE STRIP RATIO Total waste divided by total ore within the ultimate pit CUTOFF STRIPPING RATIO Costs of mining a ton of ore and associated waste equals to net revenue from the ton of ore...

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Determining Stripping Ratio

Apr 04, 2016 0183 32 The maximum allowable Stripping Ratio SR max defines break even stripping ratio BESR This represents the highest possible units of waste that can be handled If the SR exceeds the BESR then the operation will be uneconomical as the income generated by the ore is insufficient to offset the costs incurred in mining...

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Development and Application of Blast Casting Technique in ,

Blast casting is a high-efficiency technique applied in surface mines for overburden removal and results in stripping cost savings According to ballistic theory and center-of-mass frame basic movement principles, key factors influencing blast casting effect were analyzed, which include bench height and mining panel width, inclined angle of blast holes, explosive unit consumption EUC , delay ....

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What Is a Stripping Ratio? with picture

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...

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Stripping Ratio Break even stripping ratio in Opencast ,

In this we will learn about Stripping Ratio Break even stripping ratio in Opencast Mines, surface mining all numerical covered...

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Stripping Ratios What are They and Why are They ,

Oct 31, 2018 0183 32 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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14 Stripping Ratio

Oct 13, 2019 0183 32 STRIPPING RATIO-Stripping Ratio can be defined as, It is the ratio between waste Ore/Mineral What do you mean by Stripping Ratio???WASTE = OVERBURDEN I....

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Lecture 1 The Concept of Surface Mining PDF Economic ,

Some Basic Stripping Ratio Calculations I have 1800 cubic yards of overburden and 600 cubic yards of ore 1800/600 = 3 Stripping ratio is 3 1 This is called a volumetric stripping ratio because it is based on volume We can often get a volumetric stripping ratio from the maps or geometry of the ore body May need to consider density of materials...

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ECONOMIC ASSESSMENT AND MINE PRODUCTION ,

pit gold mining project named Coriorcco Gold , including a project description, an explanation of the main operational parameters, and an economic evaluation of the project In the economic evaluation, variables as the breakeven cutoff grade BCOG , stripping ratio...

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Whats the average stripping ratio of open pit mines around ,

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 range of stripping ratios from 1 1 to 1 15 or even more...

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What Is a Stripping Ratio? with picture

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 ,...

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DETERMINATION OF ULTIMATE PIT LIMITS IN OPEN MINES ,

grade calculation which both of them directly depend on final product price of the mine Ultimate pit determination in each period of time is a function of financial affairs This function is well defined by Break-Even Stripping Ratio BESR Systematic studies on this approach were carried out by Lilico 1 and Koskiniemi 2 Lerchs and ....

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Surface Mine Reserves

The program will first determine the lowest Instantaneous stripping ratio in the calculation area The program will then determine in which direction the stripping ratio increases the least If mining were to start in the area of lowest stripping ratio and then move one grid node in the direction of least increasing stripping ratio, the ....

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MODELING FOR THE STEADY STATE PRODUCTION OF LARGE ,

The break even stripping ratio is generally much higher than the ordinary stripping ratio and can be increased if the price of mineral is increased or if the technology of mining is improved The factors like degree and types of operation, economy, reclamation etc effects the break even...

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EITF Issue No 04

company generally is mining a ratio of waste material to mineral deposits that is different from the stripping ratio Refer to Exhibit 04-6A for an illustration of a cross section of a mine and a calculation of a deferred stripping ratio For each period, the actual stripping ratio is ,...

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How do you calculate the stripping ratio?

Jun 06, 2009 0183 32 Yes, a 3 1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock...

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