opencast strip mining in witbank ore field

  • Opencast coal mining at Kriel Colliery SAIMM

    finally planned to produce 4,1 million tons of coal from an underground mine and 4,5 million tons from an opencast mine, with . 4 in die Krielgebied van die Witbank When opencast mining of the field was first discussed, a stripping ratio of 6:1 was used to determine the. TABLE I. ORE RESERVES. AT KRIEL. COLLIERY.

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  • In pictures: What coal is doing to the Mpumalanga Highveld News .

    May 26, 2015 . Photo: Melissa Fourie/CER Air pollution obscures the view behind this vast open cast coal mining operation. Coal strip mining in Mpumalanga. Huge overburden mounds at a coal mine near Arnot. Mining companies are required as a condition of their mining rights to carry out "concurrent rehabilitation", i.e..

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  • Surface Strip Coal Mining Handbook sacea

    new to the field of mining engineering, or for students who are entering the field with little prior knowledge .. Coal Formation. 2. 2.1.2. Stages in the Formation of Coal. 4. 2.1.3. Principal Coal Seams of South Africa. 5. WITBANK COALFIELD. 5. FREE STATE In 2002, opencast mines provided 50 percent of the run of mine.

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  • Greenfields Rietvlei Opencast Coal Mining Operation . SAHRA

    Jul 19, 2016 . The proposed mining area lies within a farming area within the larger Witbank Coalfield and is bordered by private properties on all sides. The mine boundary covers an area of 2 225.30ha; of this approximately 800ha will be mined.The Proposed Project is located approximately 50km northeast of the town.

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  • Topic Opencast Mining Mining Weekly

    By: Esmarie Swanepoel 30th January 2017 South Africa focused coal miner Universal Coal has started opencast mining at its New Clydesdale Colliery (NCC), . 19th January 2016 Atlas Copco Mining and Rock Excavation Technique shared valuable practical information on the diverse and fascinating field of mining with.

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  • Conceptual models of Witbank coalfield, South Africa NERC Open .

    Mar 29, 2012 . (CSM) for the Witbank coalfield, South Africa and for Bank Colliery, South Africa which has been selected to . Present and past coal mining in Witbank is associated with a number of environmental problems .. extract coal: bord and pillar mining (or room and pillar), longwall mining and opencast mining.

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  • The Impact of the Quality of Coal Mine Stockpile Soils on . MDPI

    Jun 11, 2016 . and mines are in the Central Basin, which includes the Witbank (eMalahleni), Highveld, and Ermelo coalfields. . Open cast coal mining activities are leaving an unmistakable footprint on the landscape in the .. ha, was applied at 0.3 g/pot or 60 kg K/ha to soils with clay % < 20, and 0.39 g/pot or 78 kg K/ha.

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  • The social and environmental consequences of coal mining in South .

    a measure of the acidity (low pH) or basicity (high pH) of a solution. PM . Coal mining is by nature disturbing and destructive of the environment. Open cast mining removes large volumes of soil and rock overburden to get to the A large part of the Upper Olifants catchment is covered by the Witbank coal field, with the.

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  • Kendal Coal Mine Mining Technology

    Homeland Mining & Energy SA (Pty) Ltd, a subsidiary of Canadian mining company Homeland Energy Group Ltd, received the mining licence for its Kendal opencast coal mine in Witbank from the South Africa Department of Minerals and Energy in March 2008. Witbank is about 100km east of Johannesburg and the mine is.

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  • POST MINING REHABILITATION, LAND USE AND. (PDF .

    Feb 17, 2018 . Coal mining in South Africa is a mature industry and there are large numbers of closed collieries in the country's major coal fields. . There are instances where coal seams have been illegally re accessed by artisanal miners after a mine has closed or where rehabilitated land has been inappropriately.

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  • A Review of the Current Strategy for Capping Mining Spoils IMWA

    Oct 23, 2009 . varies, being typically either the full depth of soil or a fixed depth based on the intended post mining land use. Soil is . Progress has been made in the fields of soil cover modelling, the . In the Witbank area of South Africa, the rehabilitation of opencast mine spoils is typically carried out as follows: Material.

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  • Optimal production rates in opencast coal mining University of .

    Nov 15, 2011 . Number 2 Select Seam. Figure 1.2 General stratigraphy for the central Witbank Coal Field including the Tweefontein complex (modified from Smith, 2009). 2.2 Maximum extraction. Extracting as much of the ore as possible is a very important component of mine planning, but many practical facets of mining.

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  • Surface Strip Coal Mining Handbook sacea

    new to the field of mining engineering, or for students who are entering the field with little prior knowledge .. Coal Formation. 2. 2.1.2. Stages in the Formation of Coal. 4. 2.1.3. Principal Coal Seams of South Africa. 5. WITBANK COALFIELD. 5. FREE STATE In 2002, opencast mines provided 50 percent of the run of mine.

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  • Optimal production rates in opencast coal mining University of .

    Nov 15, 2011 . Number 2 Select Seam. Figure 1.2 General stratigraphy for the central Witbank Coal Field including the Tweefontein complex (modified from Smith, 2009). 2.2 Maximum extraction. Extracting as much of the ore as possible is a very important component of mine planning, but many practical facets of mining.

    Get Price
  • The impact of coal mining on agriculture a Pilot study focus . BFAP

    May 23, 2012 . Figure 6: Effects of coal dust or transport next to maize fields. issues arise in soils that are stored too long (typical in opencast strip mining), due to a lack of aeration, thus reducing the . Middelburg Dam exceeds the quality limits for water for human consumption, and Witbank. Dam is heading in the same.

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  • The Use of Minewater to meet Future Urban Water . Miya Water

    Anglo Coal and. Ingwe Coal Corporation formed a joint venture to investigate abstracting water from the Greenside, Kleinkopje and South. Witbank mines to meet the future water requirements of . question that needs to be answered is if the excess mine water abstracted from the mine workings represents a new or.

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  • Open pit mining Wikipedia

    Open pit, open cast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunneling into the earth, such as long wall mining. Open pit mines are used when deposits of.

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  • Factors and challenges affecting coal recovery by opencast pillar .

    The geological model of an opencast pillar mining operation within the Witbank coalfield has indicated that some 30% of the coal in the no. 2 seam remains in .. Buffer management and cladding techniques were implemented to minimize or prevent the continuous burning of coal in the ground. The old pillars are only in the.

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  • COL810 Final report

    selection of a suitable mining method (open cast or underground) and the negative impact on underground and . greatest impact on open cast extraction are spontaneous combustion (geology, coal and mining A required assumption is that the area under consideration (i.e. the Witbank Coalfield) was not designed for.

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  • A Review of the Current Strategy for Capping Mining Spoils IMWA

    Oct 23, 2009 . varies, being typically either the full depth of soil or a fixed depth based on the intended post mining land use. Soil is . Progress has been made in the fields of soil cover modelling, the . In the Witbank area of South Africa, the rehabilitation of opencast mine spoils is typically carried out as follows: Material.

    Get Price
  • Opencast coal mining at Kriel Colliery SAIMM

    finally planned to produce 4,1 million tons of coal from an underground mine and 4,5 million tons from an opencast mine, with . 4 in die Krielgebied van die Witbank When opencast mining of the field was first discussed, a stripping ratio of 6:1 was used to determine the. TABLE I. ORE RESERVES. AT KRIEL. COLLIERY.

    Get Price
  • Coal in South Africa Wikipedia

    Some coal mines have been abandoned by their owners, mainly due to companies ceasing to exist. Many of these mines, such as the Transvaal and Delagoa Bay Collieries (T&DB) outside Witbank, have not been rehabilitated prior to being abandoned and are a major source of water and air pollution. It is estimated that.

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  • 1 IntroductIon to south AfrIcAn coAl mInIng And explorAtIon

    The majority of coal is derived from open cast mines (±53%) and underground bord and pillar .. Witbank Coalfield. No. 1 Seam thin; mainly discontinuous. Klip River. Top Seam equivalent to the Alfred; better developed than Bottom Seam; 3.3 m in north, 1.5 . Transgressive or conformable sills (up to 80 m thick) resulted.

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  • Factors and challenges affecting coal recovery by opencast pillar .

    The geological model of an opencast pillar mining operation within the Witbank coalfield has indicated that some 30% of the coal in the no. 2 seam remains in .. Buffer management and cladding techniques were implemented to minimize or prevent the continuous burning of coal in the ground. The old pillars are only in the.

    Get Price
  • POST MINING REHABILITATION, LAND USE AND. (PDF .

    Feb 17, 2018 . Coal mining in South Africa is a mature industry and there are large numbers of closed collieries in the country's major coal fields. . There are instances where coal seams have been illegally re accessed by artisanal miners after a mine has closed or where rehabilitated land has been inappropriately.

    Get Price
  • Kendal Coal Mine Mining Technology

    Homeland Mining & Energy SA (Pty) Ltd, a subsidiary of Canadian mining company Homeland Energy Group Ltd, received the mining licence for its Kendal opencast coal mine in Witbank from the South Africa Department of Minerals and Energy in March 2008. Witbank is about 100km east of Johannesburg and the mine is.

    Get Price
  • Conceptual models of Witbank coalfield, South Africa NERC Open .

    Mar 29, 2012 . (CSM) for the Witbank coalfield, South Africa and for Bank Colliery, South Africa which has been selected to . Present and past coal mining in Witbank is associated with a number of environmental problems .. extract coal: bord and pillar mining (or room and pillar), longwall mining and opencast mining.

    Get Price
  • Deformation due to mining activities Council for Geoscience

    Mining activities in the Witbank Coalfields also lead to surface subsidence due to mining acitivities. Here . The duration of mining exploitation was dependent on a number of factors such as the size of the ore body, the . The extent of coal seams in South Africa as well as the location both historical and active opencast and.

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  • COL810 Final report

    selection of a suitable mining method (open cast or underground) and the negative impact on underground and . greatest impact on open cast extraction are spontaneous combustion (geology, coal and mining A required assumption is that the area under consideration (i.e. the Witbank Coalfield) was not designed for.

    Get Price
  • In pictures: What coal is doing to the Mpumalanga Highveld News .

    May 26, 2015 . Photo: Melissa Fourie/CER Air pollution obscures the view behind this vast open cast coal mining operation. Coal strip mining in Mpumalanga. Huge overburden mounds at a coal mine near Arnot. Mining companies are required as a condition of their mining rights to carry out "concurrent rehabilitation", i.e..

    Get Price