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Opencast Overburden Extraction

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Opencast Mining - an overview | ScienceDirect Topics

S.K. Chaulya, G.M. Prasad, in Sensing and Monitoring Technologies for Mines and Hazardous Areas, 2016. Abstract. Opencast mining operations involve huge quantities of overburden removal, dumping and backfilling in excavated areas. A substantial increase in the rate of accumulation of waste dumps in recent years has resulted in greater height of the dump for minimum ground cover area and also ...

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Opencast Mining (Quarrying): Methods, Advantages ...

Sep 16, 2018 · Opencast mining is also known as open-put mining, open-cut mining, surface mining and also as strip mining, the later term being commonly used in the U.S.A. for opencast mining of coal. The overburden and the mineral, coal, are excavated in long strips of a few metres thickness and hence the operations are termed strip mining.

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overburden in opencast mines - swidw.nl

Keywords: overburden dump, slope stability, opencast mining, shear strength parameters 1 INTRODUCTION The increased demand of coal, as a source of power, owing to rapid industrialization and population explosion, has forced the opencast coal mines to turn toward higher mechanization for extraction of coal and

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(PDF) A review on existing opencast coal mining methods ...

One mine currently still utilizing dredgers for both overburden removal and coal extraction is . ... Overburden dump is an integral part of opencast coal mining, and its stability is essential for ...

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Reclamation of Degraded Landscapes due to Opencast Mining

extraction of reserve is over, the altered landscape has to be reclaimed in order to relieve the ... material, including overburden, to extract the mineral deposit. Large amounts of waste can be produced in the process. Surface mining also can cause noise and disturbance, leave scars ... opencast coal mining on ecosystems at a landscape level ...

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FAM – Bucket Chain Excavators – Opencast Mining Technology

In opencast mining, the most commonly used excavators are: Large Bucket Chain Excavators. The rail-mounted large bucket chain excavators, which operate in frontal cutting, are the most efficient extraction devices for overburden, especially in connection with an overburden conveyor bridge. Since they are able to work in deep and high cut, the ...

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FAM Opencast Mining Technology – Machines for Global Mining

Opencast Mining Technology. In the area of opencast mining technology, FAM Förderanlagen Magdeburg offers an impressive selection of various machines and systems, such as bucket wheel excavators for extraction of mineral deposits like lignite, hard coal, overburden, marl.

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malaysia overburden in opencast mines

S.K. Chaulya, G.M. Prasad, in Sensing and Monitoring Technologies for Mines and Hazardous Areas, 2016. Abstract. Opencast mining operations involvehuge quantities of overburden removal, dumpingandbackfilling in excavated areas.A substantial increase in the rate of accumulation of waste dumps in recent years has resulted in greater height of the dump for minimum ground cover area and

Read More

Reclamation of Degraded Landscapes due to Opencast

extraction of reserve is over, the altered landscape has to be reclaimed in order to relieve the ... material, including overburden, to extract the mineral deposit. Large amounts of waste can be produced in the process. Surface mining also can cause noise and disturbance, leave scars ... opencast coal mining on ecosystems at a landscape level ...

Read More

FAM – Bucket Chain Excavators – Opencast Mining Technology

In opencast mining, the most commonly used excavators are: Large Bucket Chain Excavators. The rail-mounted large bucket chain excavators, which operate in frontal cutting, are the most efficient extraction devices for overburden, especially in connection with an overburden conveyor bridge. Since they are able to work in deep and high cut, the ...

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Optimization of Blasting Operation in Opencast Mine

removing the overburden from the surface of the earth for excavating a mineral resource through creates an opencast mine. An explosive is a solid or liquid substance or a mixture of substances which, in a short period of time after applying a flame, heat or shock (explosion), the mixture

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Reclamation of Degraded Landscapes due to Opencast Mining ...

Jul 24, 2012 · When the extraction of reserve is over, the altered landscape has to be reclaimed in order to relieve the damaging effects of opencast mining and restore the landscape and its immediate surroundings. On the other hand, reclamation of post-mining landscapes is a very challenging task since there is no unique reclamation planning scheme for such ...

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Mining Waste - an overview | ScienceDirect Topics

Mining waste is the high-volume material that originates from the processes of excavation, dressing and further physical and chemical processing of wide range of metalliferous and non-metalliferous minerals by opencast and deep shaft methods. It comprises overburden, run-of-mine rock as well as discard, slurry and tailings from the preparation ...

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Returning Mined Land to Productivity Through Reclamation ...

Reclamation of opencast mines typically involves replacement of overburden that was removed or repositioned to access buried coal layers. When excavated areas are built up, re-landscaping or recontouring is completed along with drainage control measures. Recontouring will be guided by mine plan objectives (i.e., the intended end use for the land).

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OPEN CAST MINE PLANNING - Mining and Blasting

OPENCAST MINE PLANNING, DEPLOYMENT OF HEMM FOR OPTIMUM UTILISATION, TOTAL TECHNICAL PARAMETERS OF HEMM INCLUDING ... Coal & overburden benches TYPE OF PLANS: 1) LONG TERM PLANS (MASTER PLANS & PLANS FOR THE LIFE OF THE ... Deployment of single shovel or double shovels for extraction of coal. 2. Percentage of rehandling. 3. Deployment of ...

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Responsible mining in Lusatia | LEAG.de

The opencast mine is spanned by the overburden conveyor bridge. This equipment complex removes the overburden – sand, gravel and clays – from above the lignite seam and transports it directly over the pit by the shortest route to the other side of the mine. Where the lignite has already been extracted, the overburden conveyor bridge ...

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BID DOCUMENT FOR HIRING OF EQUIPMENTS FOR

overburden. 62 4b (ii) stc for excavation, removal of overburden, extraction of coal and transportation. 67 4c special notes and additional terms & conditionsfor hiring contract : excavation, removal of overburden, extraction of coal and transportation 75 4d vocational training and safety requirements. 83 5

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Jänschwalde/Cottbus-Nord opencast mines

Overburden removal Jänschwalde opencast mine Overburden conveyor bridge F 60: 34,200 m3/h Bucket-wheel excavator SRs 2,000: 6,000 m3/h Cottbus-Nord opencast mine Overburden conveyor bridge F 34: 8,100 m3/h Mining output Coal extraction Jänschwalde opencast mine Bucket-wheel excavator SRs 1,300: 33,500 m /h

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Open-pit mining – General Overview - Protect Ecuador ...

Open-pit mining (also known as open-cut mining or opencast mining) ... necessitating the removal of layer upon layer of overburden and ore. ... If a mining project involves the extraction of a few hundred million metric tons of mineral ore, then the mine project will generate a similar quantity of tailings. ...

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i) Mechanical excavation methods; such as Open-pit and ...

3 Surface mining: Is a type of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. Surface mining is the predominant exploitation method worldwide. Surface mining requires large capital investment (primarily expensive transportation equipment), but generally results in: - High productivity (i.e., high output rate of ore)

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v117n3a2 Factors and challenges affecting coal recovery by ...

very thin. The extraction of the pillars was found to be feasible through the use of opencast mining methods due to the low stripping ratio, high recovery and extraction rate, and environmental and safety factors. This seam split was a function of the different products, with the pillar coal destined to produce export-type coal products and the ...

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Open-pit mining – General Overview - Protect Ecuador ...

Open-pit mining (also known as open-cut mining or opencast mining) ... necessitating the removal of layer upon layer of overburden and ore. ... If a mining project involves the extraction of a few hundred million metric tons of mineral ore, then the mine project will generate a similar quantity of tailings. ...

Read More

Optimization of Blasting Operation in Opencast Mine

removing the overburden from the surface of the earth for excavating a mineral resource through creates an opencast mine. An explosive is a solid or liquid substance or a mixture of substances which, in a short period of time after applying a flame, heat or shock (explosion), the mixture

Read More

(PDF) A review on existing opencast coal mining methods ...

One mine currently still utilizing dredgers for both overburden removal and coal extraction is located within the Latrobe Valley. The mine itself is 175 m deep with a coal seam thickness of 180 m. The overburden thickness ranges from 5 – 24 m and the age of the coal seams are around 15 –

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Extraction of developed pillars by opencast mine: acase study

Aug 11, 2015 · Precaution against danger of coal dust explosion while extracting pillars by opencast method (Cir. Tech. 4/1980)-Attention is invited to DGMS (Tech) Circular No. 11/1979 in which it was stipulated that LOX shall not be used for blasting in overburden within 15m of the underground workings in the coal seams immediately below or in the vicinity.

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OPENCAST PLATINUM MINE PROJECT | Miningreview

Sep 29, 2008 · Hand-in-glove with skilled and qualified personnel are the production focused items of plant. “We have five bulk excavators for overburden removal; six smaller excavators for cleaning the ore body and extraction of the ore body; five dozers for moving overburden and top soil; 25 trucks on site; three water carts and various ancillary support plant.

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Returning Mined Land to Productivity Through Reclamation ...

Reclamation of opencast mines typically involves replacement of overburden that was removed or repositioned to access buried coal layers. When excavated areas are built up, re-landscaping or recontouring is completed along with drainage control measures. Recontouring will be guided by mine plan objectives (i.e., the intended end use for the land).

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Reclamation of former ironstone workings, Priors Hall ...

Jun 03, 2011 · Ironstone extraction around Corby in Northamptonshire, UK involved opencast excavation of ore beneath 20 m thickness of overburden soils. The overburden was randomly tipped back into the quarry behind the advancing face, leaving a legacy of large tracts of land with an extensive thickness of compressible soils effectively sterilised for development in the absence of significant

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OPEN CAST MINE PLANNING - Mining and Blasting

OPENCAST MINE PLANNING, DEPLOYMENT OF HEMM FOR OPTIMUM UTILISATION, TOTAL TECHNICAL PARAMETERS OF HEMM INCLUDING ... Coal & overburden benches TYPE OF PLANS: 1) LONG TERM PLANS (MASTER PLANS & PLANS FOR THE LIFE OF THE ... Deployment of single shovel or double shovels for extraction of coal. 2. Percentage of rehandling. 3. Deployment of ...

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PRE-FEASIBILITY REPORT OF SRIRAMPUR OPENCAST- II

which is carved out of Srirampur OCP Geological Block by opencast method up to a maximum depth of 350 m of No III seam. • It is proposed to extract the Coal and Ove-Dumper rburden with Shovel combination. The Overburden is proposed to be removed by outsourcing throughout the life of the Project whereas coal extraction is by departmental HEMM.

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i) Mechanical excavation methods; such as Open-pit and ...

3 Surface mining: Is a type of mining in which soil and rock overlying the mineral deposit (the overburden) are removed. Surface mining is the predominant exploitation method worldwide. Surface mining requires large capital investment (primarily expensive transportation equipment), but generally results in: - High productivity (i.e., high output rate of ore)

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F60 | Operating Principle

Overburden Conveyor Bridge. The overburden conveyor bridge is a steel construction with implemented belt-systems. It spans the whole opencast mining area and connects the extraction-side (extraction of overburden) with the side where the overburden was dropped. The F60 served to skim the brown cole, i.e. to seperate it from the overburden (the ...

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Mining techniques / Coal extraction methods

Coal is then mined, and once operations are finished, the void is back filled with overburden, sub soil and top soil. Ground contours are graded. The Potteries coalfield occurs in a syncline (dish shaped structure). At the edges coal is near the surface, which enables open-cast methods of extraction

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Coal mining - Choosing a mining method | Britannica

Coal mining - Coal mining - Choosing 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 technological, economic ...

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Quarrying Opencast and Alluvial Mining - John Sinclair ...

Quarrying and all other branches of surface mining rather than diminishing in importance have become of more and more consequence economically, industrially and particularly with the depletion of high-grade deep-mined mineral reserves. Low-grade minerals require low cost extraction and this in many cases necessitates very expensive mechanized equipment with the cost of individual units running ...

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