bord and pillar mining equipment

bord and pillar mining equipment

  • Bord and pillar appliions on the platinum mine: Tcut SAIMM

    Frank shaft is mining both Merensky reef and UG2 reef. The. Merensky orebody is almost depleted and this was the reason for starting to mine the UG2 ore reserves. It was decided to mine the. UG2 orebody with trackless equipment using a bord and pillar mining method. Frank shaft has been mining the UG2 orebody for.


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  • underground coal mining The Coal Institute

    Oct 19, 2005 Size of entries and crosscuts vary from mine to mine. – determined by size of equipment employed. – thickness of overburden. – coal seam thickness. – ground control. – surface protection requirements. • Entry and crosscut widths generally range from 15 to 25 feet. • Pillar sizes will generally range from 


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  • A case study illustration of the layout and support Research Online

    Feb 10, 2017 underground mines. Technology wise coal production (in Mt) of CIL in 201314 was as follows: 1. Bord and Pillar Method. 1. a. DrillBlast. Intermediate technologies with side discharge loaders – 14.74. Intermediate technologies with load haul dump machine – 16.77. 2. Continuous miner technology – 


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  • Underground Mining Methods: Room and Pillar method (PDF

    FullText Paper (PDF): Underground Mining Methods: Room and Pillar method. Practical importance of the Room and pillars method Different appliions of the R & P method R & P in hard rocks: Conditions of deposit for appliion of R & P in hard rock R & P equipment in hardrock R . Room (Bord)andPillar Layout.


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  • Hardrock room and pillar MineWiki, Queen's Mine Design Project

    Aug 19, 2014 Room and pillar is an underground mining method that has appliions to a wide variety of hardrock deposits worldwide. It is commonly classified as an . As pillar size decreases, room size increases which changes ventilation requirements and equipment options. Larger rooms oblige bigger fans to 


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  • Bord and pillar appliions on the platinum mine: Tcut SAIMM

    Frank shaft is mining both Merensky reef and UG2 reef. The. Merensky orebody is almost depleted and this was the reason for starting to mine the UG2 ore reserves. It was decided to mine the. UG2 orebody with trackless equipment using a bord and pillar mining method. Frank shaft has been mining the UG2 orebody for.


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  • Coal Mining Methods EMFI

    Underground Mining. Longwall & Room and Pillar Mining. Longwall mining and roomandpillar mining are the two basic methods of mining coal underground, with roomandpillar being the traditional method in the roof supports protect the workers and equipment continuous mining machines (similar to those used in 


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  • A case study illustration of the layout and support Research Online

    Feb 10, 2017 underground mines. Technology wise coal production (in Mt) of CIL in 201314 was as follows: 1. Bord and Pillar Method. 1. a. DrillBlast. Intermediate technologies with side discharge loaders – 14.74. Intermediate technologies with load haul dump machine – 16.77. 2. Continuous miner technology – 


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  • Productivity Improvement in Underground Coal Mines A Case Study

    The only way to achieve this is to reduce production costs by improving productivity, efficiency and the effectiveness of the equipment. This paper aims to identify the various factors and problems affecting the productivity of underground coal mines adopting the bord and pillar method of mining and to propose suitable 


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  • Design of Bord and Pillar method in coal mines SlideShare

    Feb 27, 2016 to design pillar in coal mines. INTRODUCTION In India, about 98% of underground output of coal is obtained by Bord and Pillar method and barely about 2% by longwall methods. The other countries where Bord and Pillar . 156168 Deshmukh D.J., "Element of Mining Technology vol. 1", Denett 


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  • Room and pillar mining Wikipedia

    The key to successful room and pillar mining is in the selection of the optimum pillar size. In general practice, the size of both room and pillars are kept almost equal, while in Bord & Pillar, pillar size is much larger than bord (gallery). If the pillars are too small the mine will collapse, but if they are too large then significant 


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  • Report COL 602 Mine Health and Safety Council

    In recent years bord and pillar mining has accounted for between 75 and 80 % of underground production. This means that most, if not all, underground coal mines in South Africa have current, recent or old bord and pillar panels. Once mining of a bord and pillar panel has been completed, equipment and material recovery 


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  • APAC wants to make Dartbrook a bord and pillar mine Australia's

    Mar 2, 2018 APAC wants to make Dartbrook a bord and pillar mine. AUSTRALIAN Pacific Coal has lodged an appliion to modify the existing mining approval to restart underground mining operations at its Dartbrook coal mine in New South Wales using bord and pillar mining techniques. Lou Caruana 02 Mar 2018 


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  • will no longer build tracked drills, bord and pillar mining machinery

    Aug 19, 2016 has announced it will discontinue manufacture of its room and pillar equipment, and track drills. According to the company, it is part of a move to pursue 'strategic alternatives, including a possible divesture, for its room and pillar products". "These moves, which align with 's ongoing 


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  • Defining a representative overall equipment effectiveness (OEE

    The purpose of this article is to show how a representative overall equipment effectiveness (OEE) measurement can be calculated for an underground coal mining bord and pillar batch process. The calculation method, the typical losses (which include planned and unplanned availability losses, coal quality losses, and 


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  • NSW Mining Methods NSW Mining

    machinery that extracts the mineral. Underground mining accounts for 60% of world coal production, but is less common in NSW, making up around 35% of raw coal production. This method is also used to mine metallic minerals like gold and copper. The two main types of underground mining in NSW are bordandpillar 


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  • will no longer build tracked drills, bord and pillar mining machinery

    Aug 19, 2016 has announced it will discontinue manufacture of its room and pillar equipment, and track drills. According to the company, it is part of a move to pursue 'strategic alternatives, including a possible divesture, for its room and pillar products". "These moves, which align with 's ongoing 


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  • Continuous Miner – Bord & Pillar

    In underground mining, first and foremost in the modernization process are the machines that extract coal: primarily the continuous and longwall miners. First introduced in the late 1940's, continuous miners provided a quantum leap in the speed and efficiency of extracting coal. Modern versions operate on basically the 


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  • Design of Bord and Pillar method in coal mines SlideShare

    Feb 27, 2016 to design pillar in coal mines. INTRODUCTION In India, about 98% of underground output of coal is obtained by Bord and Pillar method and barely about 2% by longwall methods. The other countries where Bord and Pillar . 156168 Deshmukh D.J., "Element of Mining Technology vol. 1", Denett 


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  • Underground Mining Methods and Equipment Encyclopedia of Life

    The first section gives an overview of underground mining methods and practices as used commonly in underground mines, including classifiion of underground mining methods and brief explanations of the techniques of roomandpillar mining, sublevel stoping, cutandfill, longwall mining, sublevel caving, and block 


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