### Stripping ratio - Wikipedia

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.

### Stripping Ratios: What are They and Why are They Important ...

Calculating stripping ratios. At their most basic, strip ratios can be calculated by dividing overburden thickness by ore thickness. For example, an overburden thickness of 100 meters and an ore thickness of 50 meters would yield a strip ratio of 2:1. That means mining 1 cubic meter of ore would require mining 3 cubic meters of overburden.

### What Is a Stripping Ratio? (with picture)

Oct 26, 2019 · Stripping ratio is a term that is derived from the mining industry and is used in reference to the open-pit mining process. The stripping ratio method of calculating the profitability of the mining procedure is commonly used in the ore or coal mining process.

### How do you calculate the stripping ratio - Answers

Yes, a 3:1 stripping ratio means that mining one cubic meter of ore will require mining three cubic meters of waste rock. ...

### Stripping ratio | mining | Britannica

In 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. open-pit mining. In mining: Pit geometry …removed is called the overall stripping ratio.

### Stripping Ratio Calculation In Mining

Stripping ratio - Wikipedia, the free encyclopedia 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 volume of. Get Price And Support Online stripping ratio in coal mining - crusherasia

### (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 45 cents per cubic yard to move – what is the maximum economic stripping …

### How to calculate stripping ratio?

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 ...

### 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.

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

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### Basic Mining Techniques : Stripping ratio and pit limit

Jul 26, 2017 · Stripping ratio is expressed broadly as the ratio of waste to ore. It’s simply calculating how much waste has to be removed to expose how much of ore to be mined. Stripping ratio determines where the pit limit will be.

### formular for calculating strip ratio in mining

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 volume of... Read More Lecture 4 Calculating Stripping Ratios for Area Strip Mines.ppt

### Lecture 4 Calculating Stripping Ratios for Area Strip ...

Strip Ratio = OB Thickness (in ft) * 11.11/ Coal thickness in inches Assumes coal is 80 lbs/ft^3 (good for bituminous) Area Strip Mine Geometry Geologic Stripping Ratio no accounting for rehandle or less than 100% coal recovery

### stripping ratio calculation in mining - pazperu.ch

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.

### what is stripping ratio coal mining - Mine Equipments

what is stripping ratio coal mining. Stripping ratio - Wikipedia, the free encyclopedia 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 volume of ...

### 24th clip Surface Mining (Stripping Ratio) - YouTube

Nov 22, 2016 · Mining Engineering and Basic Knowledeg. Mining Engineering and Basic Knowledeg. Skip navigation Sign in. Search. ... 24th clip Surface Mining (Stripping Ratio) Viriyah Miner. Loading...

### What is stripping ratio in mining? - Quora

Jul 25, 2018 · 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...

### Break-even stripping ratio | Britannica

The break-even stripping ratio is a function of ore value and the costs involved. 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.

### What is STRIPPING RATIO? What does STRIPPING RATIO mean ...

Aug 24, 2017 · 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...