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  • Bord-and-pillar mining in inclined orebodies

    2009-8-27  Bord-and-pillar mining was then compared to conven-tional mining according to the following: financial analysis, dilution and flexibility. Conclusions could now be drawn to the appropriateness of bord-and-pillar mining in Vlakpoort and Moddergat. Results Geology of Vlakpoort and Moddergat The UG2 Chromitite Layer sub-outcrop strikes approximately

  • CORE

    Computer simulation of mechanised bord and pillar coal production systems . By UNSW Faculty of Engineering Mining Engineering Paul Francis Hensley. Download PDF (21 MB) Abstract. With the increased use of computers over the last twenty years simulation of many systems encountered in mining operations has become possible. ...

  • Mechanisation in Indian underground coal mines: rock ...

    2020-4-4  Mechanised mining, using Continuous Miner (CM) bord and pillar sections, has been successfully introduced into Indian coal mines for more than a decade. This milestone was possible only with the concurrent introduction of advanced technology with rock bolting to provide reliable safe support.

  • EVALUATION OF BORD AND PILLAR MINING SYSTEM IN

    2010-5-13  Bord and Pillar workings without compromising the safety factor 1.1 Aim of the study: The goal of the present investigation is evaluation of the extraction ratio of the Bord and Pillar working. This is achieved by addressing the following specific objectives.

  • OPTIMIZATION OF MECHANIZED MINING LAYOUT

    2012-9-5  • Bord and pillar (1.8 m–2.2 m stope widths using low-profile (LP) mechanized equipment) • Breast mining (1.3 m stope width using extra-low profile (XLP) mechanized equipment) A graphical representation of the bord and pillar and mechanized breast mining methods is shown in Figure 1 and Figure 2. It is important to note that the ...

  • Impala Platinum: Defined by geology - African Mining

    2019-12-11  Mechanised know-how from Implats’ Zimplats mine, in Zimbabwe and its Two Rivers mine, in Mpumalanga had been migrated to bord-and-pillar sections of Impala Rustenburg mine’s Shaft 12 and Shaft 14, where hybrid mechanisation was introduced,” says Muller. Impala Platinum continued with their three major development projects during 2019.

  • Mechanised mining in the spotlight - Miningmx

    2020-7-11  Shepherd pointed out Implats lost about 20% of its production from bord and pillar mechanised stopes following the reduction in panel width. He said Aquarius Platinum appeared to be the company which was the most exposed to such changes, because it derived at least 85% of its South African production from mechanised bord and pillar mining.

  • Board Pillar? Coal, Colliery and Mining Forum.

    2013-3-24  Bord and pillar, (same as board I guess), Post and Stall, Stall Worked, and here is one up for grabs, for some reason I cannot shake off the thought that I recall this method being referred to as Pillar and Post locally at least, I know that it seems to be nonsensical by virtue of both terms being support methods, but we are a queer lot in this corner anyway (tail-gate corner that is, probably ...

  • (PDF) Underground Mining Methods: Room and Pillar

    Room (Bord)-and-Pillar Layout. Figure shows Room and Pillar Mining. ... but the hard rock sector too is working hard to develop new mechanised, and continuous, systems.

  • Analyst - Marula Sep 2004 Ian - Implats

    2017-8-18  Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods g/t 26 Cost per tonne comparison 160 162 148 129 129 0 20 40 60 80 100 120 140 160 180 Off Reef Breast Single Conveyor Off Reef Breast Single truck Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods Rand per tonne. 14 27 Cost per ounce comparison 1,067 1,078

  • Mechanisation in Indian underground coal mines: rock ...

    2020-4-4  Mechanised mining, using Continuous Miner (CM) bord and pillar sections, has been successfully introduced into Indian coal mines for more than a decade. This milestone was possible only with the concurrent introduction of advanced technology with rock bolting to provide reliable safe support.

  • Bord and pillar mining at impala - golden-age-of

    Bord And Pillar Mining India - caa16.co.za. BORD AND PILLAR MINING METHOD. pillars are formed by driving a series of narrow roads (headings) or galleries in the seam separated by block of solid coal parallel to one another and connecting then by another set of narrow parallel roadways driven nearly at right angles to the first set.

  • Coal pillar extraction at deep cover: With special ...

    2011-5-1  Research Highlights Indian geo-mining scenario of coal pillar extraction is provided. Status of bord and pillar mining for deep coal seams is reviewed. Inherited instability issues of natural support during depillaring of a deep seam under competent roof (high stress conditions) are discussed. Influence of caving of competent overlying strata during extraction of deep seated pillars is shown ...

  • Mechanised mining in the spotlight - Miningmx

    2020-7-11  Shepherd pointed out Implats lost about 20% of its production from bord and pillar mechanised stopes following the reduction in panel width. He said Aquarius Platinum appeared to be the company which was the most exposed to such changes, because it derived at least 85% of its South African production from mechanised bord and pillar mining.

  • 2 X 10 MVA, 33 KV / 6.6 KV Electrical Sub Station Outdoor ...

    2018-4-24  (iii) Mechanised Bord Pillar/ Room Pillar system with Continuous Miners (CMs). (iv)Mechanised Powered Support Longwall(PSLW) mining system . With the increase in coal demand and growing awareness towards sustainable development,

  • An executive development programme on CONTENTS ...

    2017-9-17  OF A MECHANISED BORD PILLAR MINING Date: 4-8 December, 2017 Organised by Human Resource Development CSIR-CENTRAL INSTITUTE OF MINING AND FUEL RESERACH (CIMFR) (Barwa Road, Dhanbad - 826 015 Tel: +91 326 229 6003-6005/229 6008-6010 (EPBX) extn. 4234/35; Tel. (Direct): +91 326-229 6043; Fax : +91 326 - 229 6025/6033 C SIR-INDIA CONTENTS:

  • Mining Weekly - No future for conventional mining

    Nonetheless, he highlighted that South Africa did have mechanised mines, but that they mostly used the bord-and-pillar mining method with low-profile mining technologies, which were mostly ...

  • Junius Letswalo - Mechanised Shift Supervisor - Royal ...

    职位: Royal Bafokeng Platinum Ltd
  • Bord and pillar mining – Coal and coal mining – Te Ara ...

    Bord and pillar mining Next. This diagram shows the traditional method of bord and pillar mining. Miners first extracted coal along roadways or bords, while the coal in between the bords acted as pillars holding up the roof. Then the outer pillars were mined, leaving the roof to collapse in a controlled way as miners retreated to the exit.

  • Analyst - Marula Sep 2004 Ian - Implats

    2017-8-18  Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods g/t 26 Cost per tonne comparison 160 162 148 129 129 0 20 40 60 80 100 120 140 160 180 Off Reef Breast Single Conveyor Off Reef Breast Single truck Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods Rand per tonne. 14 27 Cost per ounce comparison 1,067 1,078

  • 2 X 10 MVA, 33 KV / 6.6 KV Electrical Sub Station Outdoor ...

    2018-4-24  (iii) Mechanised Bord Pillar/ Room Pillar system with Continuous Miners (CMs). (iv)Mechanised Powered Support Longwall(PSLW) mining system . With the increase in coal demand and growing awareness towards sustainable development,

  • BORD PILLAR METHOD Mine Portal Blog

    Bord and Pillar method: Schemes of development; design of bord and pillar working; statutory provisions; selection of equipment for development -mechanised loaders, continuous miners etc.preparatory arrangement for depillaring; statutory provision for depillaring;designing the system of pillar extraction with caving and stowing; mechanisation in depillaring operation, multi-section and ...

  • Junius Letswalo - Mechanised Shift Supervisor - Royal ...

    职位: Royal Bafokeng Platinum Ltd
  • Bord Pillar Crusher - HeNan FUMINE Heavy Industries

    Bord And Pillar Mining Conveyor Methodology. Bord and pillar mining method sand washing machine. Bord and pillar mining Coal and coal mining Te This diagram shows the . bord and pillar mining conveyor . Get Price And Support Online PTM considers transition to hybrid mining method at .. mechanised

  • Rock Mechanics Considerations For The Success Of ...

    Bord and pillar method of underground coal mining is the prevailing method of underground coal mining in India. Along with its simplicity and productivity huge quantity of coal is to be left in ...

  • An executive development programme on CONTENTS ...

    2017-9-17  OF A MECHANISED BORD PILLAR MINING Date: 4-8 December, 2017 Organised by Human Resource Development CSIR-CENTRAL INSTITUTE OF MINING AND FUEL RESERACH (CIMFR) (Barwa Road, Dhanbad - 826 015 Tel: +91 326 229 6003-6005/229 6008-6010 (EPBX) extn. 4234/35; Tel. (Direct): +91 326-229 6043; Fax : +91 326 - 229 6025/6033 C SIR-INDIA CONTENTS:

  • Analyst - Marula Sep 2004 Ian - Implats

    2017-8-18  Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods g/t 26 Cost per tonne comparison 160 162 148 129 129 0 20 40 60 80 100 120 140 160 180 Off Reef Breast Single Conveyor Off Reef Breast Single truck Semi Mechanised Bord and pillar 1.8 Bord and pillar 1.6 Mining methods Rand per tonne. 14 27 Cost per ounce comparison 1,067 1,078

  • Major Mines Projects Mototolo Mine

    Mototolo is fully mechanised and extracts the UG2 Reef some 450m below surface using mechanised, trackless, bord-and-pillar underground operation. Current mine infrastructure consists of two decline shafts, Lebowa and Borwa, and a concentrator.

  • Major Mines Projects Booysendal Mine

    The Booysendal North and South mines are underground, mechanised bord and pillar mines, accessed from surface via ramp decline systems. The North UG2 mine decline system comprises three declines on the plane of reef and one decline situated 20 m into the footwall of

  • Garatau Project – Nkwe Platinum Limited

    The Mine at Garatau will be a mechanised bord and pillar underground operation with an early access ramp to reach the orebody, after which the Main shaft as well as the ventilation shafts will be developed. A triple decline strategy is planned to provide multiple points of attack on the Merensky Reef, effectively creating 3 separate mines, with ...

  • Bord Pillar Crusher - HeNan FUMINE Heavy Industries

    Bord And Pillar Mining Conveyor Methodology. Bord and pillar mining method sand washing machine. Bord and pillar mining Coal and coal mining Te This diagram shows the . bord and pillar mining conveyor . Get Price And Support Online PTM considers transition to hybrid mining method at .. mechanised

  • BORD PILLAR METHOD Mine Portal Blog

    Bord and Pillar method: Schemes of development; design of bord and pillar working; statutory provisions; selection of equipment for development -mechanised loaders, continuous miners etc.preparatory arrangement for depillaring; statutory provision for depillaring;designing the system of pillar extraction with caving and stowing; mechanisation in depillaring operation, multi-section and ...

  • Advanced techniques for the monitoring of pillar and ...

    South Deep changed from partial conventional-mechanised mining to full trackless mechanised mining in 2008, Joughin et al (2011). The changeover to mechanised mining saw the introduction of bord and pillar mining using initially an apparent dip de-stressing method following dip of the reef which was then modified to a horizontal de-stressing ...

  • Computer simulation of mechanised bord and pillar

    1981, English, Thesis edition: Computer simulation of mechanised bord and pillar coal production systems / P.F. Hensley. Hensley, P. F. (Paul Francis) No known library holdings in Australia

  • Metropolitan Colliery* NSW Environment, Energy

    Mechanised bord and pillar mining commenced in 1951 and continued until 1995, when longwall mining was introduced to become the principal method of producing coal. Metropolitan is currently producing around 1.5 million tonnes per annum using the longwall system and two longwall development panels using the bord and pillar system of mining.

  • Junius Letswalo - Mechanised Shift Supervisor - Royal ...

    职位: Royal Bafokeng Platinum Ltd
  • Exxaro Resources Limited Consolidated Mineral

    FZON also uses mechanised bord-and-pillar mining using a suite of CM equipment to exploit primarily the S4L, although S2L was also previously exploited. After operating for 20 years, FZON was placed under care and maintenance in February 2014. It was recommissioned in October 2018 with one CM section targeting the S4L and plans to introduce ...

  • Koornfontein Coal Mine - Blinkpan Underground

    2014-6-4  This is the Blinkpan underground operation which is a mechanised bord-and-pillar operation, with coal crushed, screened, washed and transported by rail to Komati power station. Koornfontein is owned by Glencore Xstrata and Optimum Coal also owns an effective 96% interest in Koornfontein Mines in Mpumalanga, which as at 30 June 2009, had a reserve base of 46.5m tons of run-of-mine coal, of ...

  • 2a U.G MINING (SCCL).ppt - PRESENTATION

    out of 54 million tonne of underground production (2000-01), 20 million tonne came from mechanised bord pillar method, involving sdl lhd loading machines with roof bolting 3. oms for underground is 0.55~0.57, whereas for ocp overall average oms is more than 6 (2003-04) 4. around 850 loading m/c (97-98) were in roll in 143 nos.

  • Digging deeper: Mining methods explained Anglo

    The underground mining methods we use include room and pillar, narrow vein stoping and large-scale mechanised mining. Room and pillar mining is a style of mining where tunnels are driven in a chess board pattern with massive square pillars between them which are gradually cut away as the work proceeds. We use this for mining coal.