coal mining stripping ratio

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Surface Coal Mining Methods in Australia - InTech

Surface Coal Mining Methods in Australia 5 2. Open cut mining methods strip mining Large-scale open cut coal mining operations commenced in Australia in mid 1960s and since then there has been significan t developments in this method of mining. The mines are now operating at significantly higher annual tonnages, growing deeper, more complex and

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

The Coal Area Strip Mine Formula • 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 coal recovery Your Turn • Use What You Have Learned About Calculating ...

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

Even if there was an average of ALL open pit mines that would not offer any knowledge regarding open pit mining. The stripping ratio in a mine is chosen based on economics.

Coal mining - Wikipedia

The limitations of contour strip mining are both economic and technical. When the operation reaches a predetermined stripping ratio (tons of overburden/tons of coal), it is not profitable to continue. Depending on the equipment available, it may not be technically feasible to …

coal mining stripping ratio - BM Garden

Strip Ratio In Coal Mining - pol-recreatienl. Strip Ratio In Coal Mining What Is a Stripping Ratio with picture wiseGEEK Apr 22 2018 Stripping ratio is a term that is derived from the mining industry and is used in reference to the open-pit mining process Read more what is stripping ratio coal mining vibrating sieve separator [7/27 Online]

Elk Valley Mining, New and Expanding

Elk Valley Mining, New and Expanding Map # Owner Name Property Name Links Status Overview Planned Disturbance Reclaimed Tonnes/Yr Strip Ratio Average Total Production 1 Teck Coal Coal Mountain Phase II (Marten-Wheeler) BCEAO CEAA Cancelled Indefinitley EA currently under CEAA and BCEAO Review 1000 ha 2.25 million metric tonnes/year of clean coal

In coal mining what is a good strip ratio - Answers

Jul 29, 2010· In coal mining what is a good strip ratio? Unanswered Questions. How does Spreading center create a volcano? What would cause my kitten to sneeze so much? What is …

CHAPTER 11 Mining Technology - Princeton University

basin which produces Federal coal. Area strip mining proceeds by first making a box cut into the earth to uncover the initial strip of coal that is to be mined. The strip of coal uncovered will vary from 100 to 200 ft in width and from one-quarter to several miles in length. The actual size of the cut will be de-termined by the thickness of ...

Analysis of Highwall Mining Stability - The Effect of ...

feet to 1,200-feet of additional recovery when the economic stripping ratio is reached in contour mining or in slot mining when surface ... surface coal mining technique requiring four to five miners per shift. Volkwein, ... Analysis of Highwall Mining Stability - The Effect of Multiple Seams and Prior Auger Mining on Design David Newman, ...

COAL MINING MIDTERMS Flashcards | Quizlet

The mining proceeds around the hills and mountains, extracting the coal seam to a depth fixed by the economic strip ratio. CONTOUR MINING METHOD - Removing overburden from the coalbed with the first cut at or near the outcrop, and proceeding around the hillside.

what is stripping ratio coal mining - Mine Equipments

In coal mining what is a good strip ratio - Wiki Answers What Is Stripping Ratio?a. Measures relative deposit depth. Q: How important is depth in surface mining?? * …

what is stripping ratio coal mining

what is stripping ratio coal mining - mayukhportfolio . Aug 18, 2018· 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 .

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? What does STRIPPING RATIO mean ...

Aug 24, 2017· All other factors being equal, mining at a higher stripping ratio is less profitable than mining at a lower stripping ratio because more waste must be moved (at a …

strip ratio in coal mining - Mine Equipments

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 …

Can Indonesia's coal mines maximise strip ratios and boost ...

Dec 16, 2016· Can Indonesia's coal mines maximise strip ratios and boost reserves? ... producers are likely to have sterilised coal and jeopardised future coal reserves with continuous mining in lower strip areas. Our analysis suggests that the top 16 producers in Indonesia has been able to increase reserve, but other coal producers have experienced a ...

Stripping Ratio coal Mining comp coal Russian

Stripping Ratio Coal Mining Comp Coal Russian The geological characteristics of surface coal mining which distinguish it from other surface mining are the nature . mining encyclopedia2.thefreedictionary Surface Mining Methods. Strip mining (see coal mining by underground mining rather than surface mining is the strip ratio, Compensation, and .

Stripping ratio - Wikipedia

Oct 26, 2019· 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.

Surface Coal Mining in Wyoming: Needs for Research and ...

Surface Coal Mining in Wyoming: Needs for Research and Management JOHN F. THILENIUS AND GARY B. GLASS John F. Thihi"S is a plant ecologist at the Rocky Mountain Forest Highlight: Wyoming ranks second in the nation strlppable and Range Experiment Station worg unit at Laramie, Wyoming, in co- coal resources, with nt least 18.9 billion tom of coal presently

stripping ratio in coal mining - puntoalloggio.it

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. Get the price√

How to calculate stripping ratio?

The common strip ratio for coal mining is BCM per ton of coal. Is this coal in situ or run of mine? Any answers? Can you help by adding an answer? Answer. Add your answer. Related Publications.

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

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.

India Coal: Stripping Ratio

India's Coal: Stripping Ratio: Private Sector: Castron Mining Limited data was reported at 8.830 % in Mar 2006. This records a decrease from the previous number of 31.000 % for Mar 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.

ABOUT US - geocoal.com

ABOUT US. OUR BUSINESS ... with an average stripping ratio of less than 3.5. BEK and STT mining concessions are located in Kutai Barat, East Kalimantan. Coal mining operations at BEK mine was commenced in February 2012 and placed under care and maintenance in September 2014. However, in late 2017, mining operations has recommenced.

Availability of Coal Resources for Mining in Illinois

9 Availability of coal resources in the Shawneetown Quadrangle 15 10 Thickness of the Herrin Coal, Shawneetown Quadrangle 16 11 Depth of the Herrin Coal, Shawneetown Quadrangle 17 12 Stripping ratio of the Herrin Coal, Shawneetown Quadrangle 18 13 Availability of the Herrin Coal for surface mining, Shawneetown Quadrangle 20

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…

al mining stripping ratio - colorholland.nl

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 …

Economic Surface Mining of Multiple Seams

Economic Surface Mining of Multiple Seams By THOMAS V. FALKIE' :md WlLLIAM E. PORTERt SYNOPSIS A, Xeological and mining conditions become more complex, and as overall mining economics become more marginal, short-and long-range decision-making regarding muIliple-scam surface mining becomes more difficult.

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

Aug 24, 2017· All other factors being equal, mining at a higher stripping ratio is less profitable than mining at a lower stripping ratio because more waste must be moved (at a cost per unit volume) for an ...