equipments used in board and pillar coal mining method

  • Bord-and-pillar mining explained | Illawarra Mercury | …

    Bord-and-pillar mining explained | Illawarra Mercury | …

     · Longwall mining is newer, and revolutionised coal mining. It involves giant and super-expensive machines called longwall miners shearing away a "wall" of coal at a time.

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  • equipments in coal mining

    equipments in coal mining

    List of Equipment Used in Opencast Coal Mining Mining ADVERTISEMENTS: List of equipment used in opencast coal mining are: 1 Bulldozer 2 Craper 3 Ripper 4 Tractor Shovel 5 Dipper Shovel 6 Stripper Shovel 7 Pull Shovel or Hoe 8 Dumpers or Tippers 9 Drag ...

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  • Room and pillar mining

    Room and pillar mining

    The room and pillar system is used in mining coal, gypsum, iron, and uranium ores, particularly when found as manto or blanket deposits, stone and aggregates, talc, soda ash and potash. It has been used worldwide from the Czech Republic to China to the US.

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  • SHUTTLE CAR – Mining Science and Technology

    SHUTTLE CAR – Mining Science and Technology

    By back spooling of cables from an intermediate cable anchorage point the operational reach can be doubled but this may result in reduced cable life and is usually used only for specialised drivages. To avoid cable tangling as the cars are usually used in pairs with a continuous miner, one car has its cable reel on the left side, the other on the right side.

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  • Bord and pillar applications on the platinum mine: T-cut mining method

    Bord and pillar applications on the platinum mine: T-cut mining method

    The T-cut mining method is basically a partial pillar extraction method. The pillar (13 m x 13 m) created by the bord and pillar development is being stoped (only the UG2 reef) out for 2 m from the roadways on all sides, to leave an effective pillar of 9 m x 9 m. This ...

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  • Applications of simulation and optimization techniques in optimizing room and pillar mining …

    Applications of simulation and optimization techniques in optimizing room and pillar mining …

    solving mine design and production sequencing problems in room and pillar mines (R&P). The specific objectives were to: (1) apply Discrete Event Simulation (DES) to determine the optimal width of coal R&P panels under specific mining conditions; (2)

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  • Mining company product equipments and minerals

    Mining company product equipments and minerals

    The room and pillar system is used in mining coal, iron and copper ores mainly when found as manto or blanket sediments, stone and aggregates, talc, soda ash and potash. The key to the winning room and pillar mining is opting the optimum pillar size.

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  • Bord and pillar mining – Coal and coal mining – Te Ara …

    Bord and pillar mining – Coal and coal mining – Te Ara …

    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.

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  • Room and pillar mining

    Room and pillar mining

    Coal mining in the United States has nearly always operated with a room and pillar layout, although originally operated with significantly more man-power. Room and pillar mining of gypsum was used in Iowa beginning in 1892, and was phased out of use in 1927 due to low recovery and development of technologies that made surface mining more practical, safe, and cost effective.

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  • Board & Pillar? | Coal, Colliery and Mining Forum.

    Board & Pillar? | Coal, Colliery and Mining Forum.

     · (a) board and pillar (b) pillar and stall (c) room and pillar (d) stoop and room. The name varied depending upon the part of the country the mining took place, however the method was basically the same. Anyone know of any other names.

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  • bord and pillar coal mining

    bord and pillar coal mining

    High-extraction retreat mining is a form of room-and-pillar mining that extracts most of the coal. Rooms and pillars are developed in the panels and the pillars are then systematically removed fig. 1F . In early pre-1960 longwall mines mining advanced in multiple

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  • Design of Bord and Pillar method in coal mines

    Design of Bord and Pillar method in coal mines

     · Bord and Pillar method of mining is one of the oldest methods. 3. 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

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  • Room-and-pillar mining | coal mining | Britannica

    Room-and-pillar mining | coal mining | Britannica

    In coal mining: Mining methods …classified into four distinct categories: room-and-pillar, longwall, shortwall, and thick-seam. Read More open-stoping methods In stoping A common open-stoping method is room-and-pillar mining, in which pillars of ore are left

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  • Underground Mining Methods and Equipment

    Underground Mining Methods and Equipment

    A drifting jumbo equipped with one or multiple rock drills is employed for penetrating horizontal blastholes and used for driving horizontal dr ifts and inclined ramp s as well as production by crosscutting in room-and-pillar mining and cut-and-fill stoping.

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  • Underground Mining Methods and Equipment

    Underground Mining Methods and Equipment

    Figure 2: Room-and-pillar mining Pillars of original bedrock are left to support rock pressures and to protect personnel. Drill jumbos are usually used for driving crosscut s and connecting them. Bl asted ore is mucked and hauled by LHDs. In coal mines, seams

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  • room amp pillar mining,chrome ore operation

    room amp pillar mining,chrome ore operation

    Low Seam Coal Mining in South Africa - Mining 2008-4-23 The underground mining method in South Africa is either longwall mining or room amp pillar (board amp pillar). In the latter method, the main excavation methods are drill and blast or preferably with

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  • Defining a representative overall equipment effectiveness (OEE) measurement for underground bord and pillar coal mining

    Defining a representative overall equipment effectiveness (OEE) measurement for underground bord and pillar coal mining

    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 process rate losses) and the underlying logic are presented and discussed. It

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  • (PDF) Room and Pillar Design and Construction for …

    (PDF) Room and Pillar Design and Construction for …

    The method used is the room and pillar mining method where the initial entry galleries are driven into the coal seam starting from the surface excavation face, as used in the highwall mining cases.

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  • Coal mining

    Coal mining

    Mining methods Modern underground coal-mining methods can be classified into four distinct categories: room-and-pillar, longwall, shortwall, and thick-seam. Room-and-pillar mining In this method, a number of parallel entries are driven into the coal seam.

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  • EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL …

    EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL …

    Bord and Pillar method of mining. Bord and Pillar method of mining is one of the oldest methods. The key to the successful Bord and Pillar mining is selecting the optimum pillar size. If the pillars are too small the mine will collapse. If the pillars are too large

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  • Sustainability | Free Full-Text | Risk Assessment and Control …

    Sustainability | Free Full-Text | Risk Assessment and Control …

     · At the end of the 20th century, the room and pillar (R&P) mining method was widely used in the western coal resources, and many coal pillars remained in the goaf [3,4]. With the mining area''s extension and passage of time, the remaining coal pillars'' fracture and instability will cause the goaf roof to collapse in a large area, inducing mine tremors and shock waves.

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  • bord and pillar coal mining

    bord and pillar coal mining

    High-extraction retreat mining is a form of room-and-pillar mining that extracts most of the coal. Rooms and pillars are developed in the panels and the pillars are then systematically removed fig. 1F . In early pre-1960 longwall mines mining advanced in multiple

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  • Coal pillar extraction experiences in New South Wales

    Coal pillar extraction experiences in New South Wales

    mining method, mining equipment and other unique features of the operations. Colliery A Colliery A operated under unique circumstances in that chain pillars that previously acted as barrier pillars and main travelling ways between two longwall goafs were

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  • equipments in coal mining

    equipments in coal mining

    List of Equipment Used in Opencast Coal Mining Mining ADVERTISEMENTS: List of equipment used in opencast coal mining are: 1 Bulldozer 2 Craper 3 Ripper 4 Tractor Shovel 5 Dipper Shovel 6 Stripper Shovel 7 Pull Shovel or Hoe 8 Dumpers or Tippers 9 Drag ...

    Get price
  • SHUTTLE CAR – Mining Science and Technology

    SHUTTLE CAR – Mining Science and Technology

    By back spooling of cables from an intermediate cable anchorage point the operational reach can be doubled but this may result in reduced cable life and is usually used only for specialised drivages. To avoid cable tangling as the cars are usually used in pairs with a continuous miner, one car has its cable reel on the left side, the other on the right side.

    Get price
  • Coal pillar extraction experiences in New South Wales

    Coal pillar extraction experiences in New South Wales

    Coal pillar extraction experiences in New South Wales surface (W:D) of 0.46. This type of panel geometry (when designed in ground) would generally limit full caving and limit abutment stresses in New South Wales. The immediate roof strata consisted of

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  • Mining company product equipments and minerals

    Mining company product equipments and minerals

    The room and pillar system is used in mining coal, iron and copper ores mainly when found as manto or blanket sediments, stone and aggregates, talc, soda ash and potash. The key to the winning room and pillar mining is opting the optimum pillar size.

    Get price
  • Background review

    Background review

    techniques. ''Bord and pillar'' is the oldest coal mining technique used in Australia and was common in New South Wales prior to about 1960. Originally it was the sole method used to extract all coal, but now it is generally used as the precursor to longwall mining

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  • Defining a representative overall equipment effectiveness (OEE) measurement for underground bord and pillar coal mining

    Defining a representative overall equipment effectiveness (OEE) measurement for underground bord and pillar coal mining

    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 process rate losses) and the underlying logic are presented and discussed. It

    Get price
  • Room-and-pillar mining | coal mining | Britannica

    Room-and-pillar mining | coal mining | Britannica

    In coal mining: Mining methods …classified into four distinct categories: room-and-pillar, longwall, shortwall, and thick-seam. Read More open-stoping methods In stoping A common open-stoping method is room-and-pillar mining, in which pillars of ore are left

    Get price
  • Room and Pillar Mining

    Room and Pillar Mining

    Both room and pillar and longwall mining are mostly now performed with very powerful mining machines, which rapidly cut coal from the face of coal seams. These machines are phasing out the use of less productive and more dangerous traditional methods, which require intermittently drilling the coal seam and blasting it with explosives.

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  • Shortwall Mining | Introduction | underground COAL

    Shortwall Mining | Introduction | underground COAL

    Shortwall Mining This method of mining was developed in the late 1960''s to take advantage of the then recent development of suitable hydraulic longwall supports, coupled with the productivity and low capital cost of continuous miners and shuttle cars. In effect it ...

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  • (PDF) Room and Pillar Design and Construction for …

    (PDF) Room and Pillar Design and Construction for …

    The method used is the room and pillar mining method where the initial entry galleries are driven into the coal seam starting from the surface excavation face, as used in the highwall mining cases.

    Get price
  • Board & Pillar? | Coal, Colliery and Mining Forum.

    Board & Pillar? | Coal, Colliery and Mining Forum.

     · (a) board and pillar (b) pillar and stall (c) room and pillar (d) stoop and room. The name varied depending upon the part of the country the mining took place, however the method was basically the same. Anyone know of any other names.

    Get price
  • 17th International Mining Yielding Pillar Concept and its Design

    17th International Mining Yielding Pillar Concept and its Design

    17th International Mining Congress and Exhibition of Turkey-MCET 2001, ©2001, ISBN 975-395-417-4 Yielding Pillar Concept and its Design H.Yavuz Department of Mining Engineering, Süleyman Demire! University, İsparta, Turkey ABSTRACT: Yielding pillar theory

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  • Room and Pillar Mining Method

    Room and Pillar Mining Method

     · Equipment used in the mining Room and Pillar method for coal Conventional mechanized sets; Mechanized sets with LHD''s; Continuous miners ; …

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  • Definition of bord-and-pillar method

    Definition of bord-and-pillar method

    The remainder of the coal is won by a retreating system, the cover being caved after each unit has been worked. The term bord-and-pillar is not used to any great extent in American mining literature, but has a place in English literature.

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  • Depillaring: Arrangement, Precautions and Pillar …

    Depillaring: Arrangement, Precautions and Pillar …

    After pillars have been formed on the bord and pillar system, consideration has to be given to the extraction of coal from the pillars; the operation is known as pillar extraction. It is also referred to as depillaring, pillar-cutting or broken working. In a method of ...

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  • COAL MINING TECHNOLOGY

    COAL MINING TECHNOLOGY

    •Bord & Pillar is the traditional mining method used in India. •It is employed where geo-mining conditions are complex. •Coal is removed from the coal faces initially by developing a set of galleries leaving pillars in between to support the roof. •Thereafter, the pillars are extracted by de

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  • Board & Pillar? | Coal, Colliery and Mining Forum.

    Board & Pillar? | Coal, Colliery and Mining Forum.

     · (a) board and pillar (b) pillar and stall (c) room and pillar (d) stoop and room. The name varied depending upon the part of the country the mining took place, however the method was basically the same. Anyone know of any other names.

    Get price