influence of striping ratio on open cast al mining

  • Optimization of the fleet per shovel productivity in

    been mined. The aspect of the mining operation which has the most influence on profit is the cost of materials handling. This paper focusses on developing an oriented algorithm that can be used during the calculation of shovel productivity as well as fleet production management for an open pit mine.

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  • ESTIMATION OF CAPITAL COSTS FOR ESTABLISHING COAL

    1.2.1. Stages in the life of a mine 1 1.3. Surface mining 4 1.3.1. Strip/opencast mining 5 1.3.2. Terrace mining 7 1.3.3. Open pit mining 8 1.4. Underground coal mining 9 1.4.1. Room and pillar 9 1.4.2. Longwall 12 1.5. South African coal mining context 13 1.5.1. History of the South African coal mining industry 13 1.5.2.

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  • Design of openpit miningLinkedIn SlideShare

    Mar 13 2012 · OPEN PIT MINING ISNSource WCI 2005 3. PRELIMINARY EVALUATION OF DEPOSIT Deposit Tech-Aspects Economic aspectsResources Production requirementsGR/MR Mining Technology Minelife requirementsMining depth Logistics Strata Sequa Options and Suggestions Roads etc.Thickness of- coal Equipment Cash out flow- waste Cash inflow- inter burden Surface

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  • 1.1 PHASES OF A MINING PROJECT

    1.1.3.1 Open-pit mining Open-pit mining is a type of strip mining in which the ore deposit extends very deep in the ground necessitating the removal of layer upon layer of overburden and ore. In many cases logging of trees and clear-cutting or burning of vegetation above the ore deposit may precede removal of the overburden. The

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  • Rock fragmentation control in opencast blasting

    Presently seams R-V and R-VI are being extracted by opencast method of mining. The mine is producing about 4.5 Mt of coal and removal of overburden is about 12 Mm 3. The stripping ratio of the mine is 1 4.72 i.e. 4.72 m 3 of overburden is to be removed for mining of 1 t of coal. The total coal reserve of the mine is 188.26 Mt.

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  • Mine Surveying Article about Mine Surveying by The Free

    Mine Surveying (in Russian marksheideriia) the branch of mining science and engineering that uses measurements made in the field and also subsequent geometric constructions as a basis for the study of the structure of a deposit the shape and dimensions of mineral bodies in the interior and the location in them of components that are useful and

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  • CHAPTER 11 Mining Technology

    the mining technologies currently in use on Federal leases and the potential for commer-cial mining technologies to extract Federal coal reserves from deep underground seams. The chapter discusses three surface mining techniques that are used in the West 1) area strip 2) open pit and 3) terrace pit two methods of underground mining in

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  • Underground mining (hard rock)Wikipedia

    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt coal

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  • Coal mining Britannica

    Coal mining extraction of coal deposits from the surface of Earth and from underground. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy. It was the basic energy source that fueled the Industrial Revolution of the 18th and 19th

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  • AS Rocks Weathering Mrs Conrad s KIS I-ALEVEL

    Open cast mining (also known as strip mining) is a form of extensive excavation in which the overlying material (overburden) is removed by machinery revealing seams or deposit below. This destroys the homes of animals and it completely removes the habitat

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  • AS Rocks Weathering Mrs Conrad s KIS I-ALEVEL

    Open cast mining (also known as strip mining) is a form of extensive excavation in which the overlying material (overburden) is removed by machinery revealing seams or deposit below. This destroys the homes of animals and it completely removes the habitat

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  • Reasonable coal pillar design and remote control mining

    1. Introduction. The slope angle mining boundary changes of the coal seam thickness etc. are the main reasons that many coal resources remain under the end-walls in open-pit coal mines 1–3 cause of the undeveloped mining technology and low economic benefits those resources were discarded or exploited using the room and pillar method with low recovery ratios.

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  • Mining is bad for health a voyage of discovery SpringerLink

    Mining continues to be a dangerous activity whether large-scale industrial mining or small-scale artisanal mining. Not only are there accidents but exposure to dust and toxins along with stress from the working environment or managerial pressures give rise to a range of diseases that affect miners. I look at mining and health from various personal perspectives that of the ordinary man

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  • Surface MiningBoxcutYouTube

    Sep 29 2019 · Stripping RatioDuration Open-pit continuous mining equipmentDuration Application of Mine Planning software in Geological Modelling and Mine PlanningDuration

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  • CHAPTER 11 Mining Technology

    the mining technologies currently in use on Federal leases and the potential for commer-cial mining technologies to extract Federal coal reserves from deep underground seams. The chapter discusses three surface mining techniques that are used in the West 1) area strip 2) open pit and 3) terrace pit two methods of underground mining in

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  • INTRODUCTION TO MININGCiência Viva

    mining in systematic openings 2 to 3 ft (0.6 to 0.9 m) in height and more than 30 ft (9m) in depth (Stoces 1954). However the oldest known underground mine a hematite mine at Bomvu Ridge Swaziland(Gregory 1980) is from the Old Stone Age and believed to

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  • Mine wastes managementMining and Blasting

    The ratio of overburden excavated to the amount of mineral removed is called the overburden ratio or stripping ratio. 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.

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  • Mining is bad for health a voyage of discovery SpringerLink

    Mining continues to be a dangerous activity whether large-scale industrial mining or small-scale artisanal mining. Not only are there accidents but exposure to dust and toxins along with stress from the working environment or managerial pressures give rise to a range of diseases that affect miners. I look at mining and health from various personal perspectives that of the ordinary man

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  • Mapping the yearly extent of surface coal mining in

    Surface mining for coal has taken place in the Central Appalachian region of the United States for well over a century with a notable increase since the 1970s. Researchers have quantified the ecosystem and health impacts stemming from mining relying in part on a geospatial dataset defining surface mining s extent at a decadal interval. This dataset however does not deliver the temporal

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  • Performance Measurement of Mining Equipments by Utilizing

    Acta Montanistica Slovaca Ročník 15 (2010) číslo 2 95-101 95 Performance Measurement of Mining Equipments by Utilizing OEE Sermin Elevli1 and Birol Elevli2 Over the past century open pit mines have steadily increased their production rate by using larger equipments which require

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  • Living near opencast coal mining sites and children s

    OBJECTIVES To answer the question whether living near opencast coal mining sites affects acute and chronic respiratory health. METHODS All 4860 children aged 1–11 from five socioeconomically matched pairs of communities close to active opencast sites and control sites away from them were selected. Exposure was assessed by concentrations of particulate matter with aerodynamic diameter <10 μm

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  • Environmental impact of miningWikipedia

    Environmental impacts of mining can occur at local regional and global scales through direct and indirect mining practices. Impacts can result in erosion sinkholes loss of biodiversity or the contamination of soil groundwater and surface water by the chemicals emitted from mining processes. These processes also have an impact on the atmosphere from the emissions of carbon which have

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  • Equipment Selection for Surface Mining A Review

    A surface mine contains pits with mineral endowed rock (or ore). We extract ore that lies within the upper layer of the earth from surface mines (Fricke 2006) . This ore can include metals such as iron copper coal and gold. There are several methods of surface mining including open-pit stripping dredging and mountain-top removal.

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  • ECONOMIC ASSESSMENT AND MINE PRODUCTION

    The stripping ratio is the relationship between the waste and ore volume. Different sensitivity analysis will also be performed in order to appreciate what happens to the project economics when certain variables of high importance such as the processing capacity gold price and dilution rate vary. Open-pit mining operations are long-term

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  • INTRODUCTION TO MININGCiência Viva

    mining in systematic openings 2 to 3 ft (0.6 to 0.9 m) in height and more than 30 ft (9m) in depth (Stoces 1954). However the oldest known underground mine a hematite mine at Bomvu Ridge Swaziland(Gregory 1980) is from the Old Stone Age and believed to

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  • Optimization of the fleet per shovel productivity in

    been mined. The aspect of the mining operation which has the most influence on profit is the cost of materials handling. This paper focusses on developing an oriented algorithm that can be used during the calculation of shovel productivity as well as fleet production management for an open pit mine.

    Chat Online
  • 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.

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  • Design of openpit miningLinkedIn SlideShare

    Mar 13 2012 · OPEN PIT MINING ISNSource WCI 2005 3. PRELIMINARY EVALUATION OF DEPOSIT Deposit Tech-Aspects Economic aspectsResources Production requirementsGR/MR Mining Technology Minelife requirementsMining depth Logistics Strata Sequa Options and Suggestions Roads etc.Thickness of- coal Equipment Cash out flow- waste Cash inflow- inter burden Surface

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  • What Is a Stripping Ratio (with picture)

    May 09 2020 · Esther Ejim Last Modified Date 30 June 2020 . 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. In relation to its application in the mining of ore the utility of the stripping ratio

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  • Design of openpit miningLinkedIn SlideShare

    Mar 13 2012 · OPEN PIT MINING ISNSource WCI 2005 3. PRELIMINARY EVALUATION OF DEPOSIT Deposit Tech-Aspects Economic aspectsResources Production requirementsGR/MR Mining Technology Minelife requirementsMining depth Logistics Strata Sequa Options and Suggestions Roads etc.Thickness of- coal Equipment Cash out flow- waste Cash inflow- inter burden Surface

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  • Coal Mining MethodsColorado School of Mines

    the mining operation involves cyclical step by-step mining sequences. The rooms are the empty areas from which coal has been mined and the pillars are blocks of coal (generally 40 to 80 feet on a side) left to support the mine roof. Room-and-pillar mining generally is limited to depths of about 1 000 feet because at greater

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  • Environment Impact Assessment of Coal Mining

    Dhruv Katoria et al 246 extraction of coal. Depending on the content of volatiles coal is classified into Lignite Sub-bituminous coal Bituminous coal and Anthracite. Open cast mining and underground mining (room pillar long wall drift shaft slope mining) are some types of coal mining.

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  • The Most Common Accidents in the Mining Industry

    Jan 14 2019 · The yearly average in coal mining decreased to 30 fatalities from 2001-2005 though 60 to 70 miners still die each year in the U.S. coal and non-coal mining industry. The most common accidents occurring in the mining industry are the result of poisonous or explosive gases or mishaps relating to the use of explosives for blasting operations.

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  • Underground mining (hard rock)Wikipedia

    Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques for excavating ores of gems such as diamonds or rubies. Soft rock mining refers to excavation of softer minerals such as salt coal

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  • Coal miningChoosing a mining method Britannica

    Coal miningCoal miningChoosing a mining method The various methods of mining a coal seam can be classified under two headings surface mining and underground mining. Surface and underground coal mining are broad activities that incorporate numerous variations in equipment and methods and the choice of which method to use in extracting a coal seam depends on many

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  • Copper Statistics and InformationUSGS.gov

    Open-File Report 2007–1257 Estimate of Undiscovered Copper Resources of the World 2013 Fact Sheet 2014–3004 Estimated Water Requirements for the Conventional Flotation of Copper Ores Open-File Report 2012–1089 Factors that Influence the Price of Al Cd Co Cu Fe Ni Pb Rare Earth Elements and Zn Open-File Report 2008-1356

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