Home--->post pillar cut and fill mining method

  • 11 Rock mechanics design concepts for post-pillar cut

    2019-5-21 · Abstract: Highest percentage of ore recovery, large dimensions of openings to operate high capacity drilling and mucking equipment, safety and economics of huge orebodies exploitation, require establishment of a raining procedure assuring best complying with the above mentioned factors; room and pillar-cut and-fill is one of those methods of mining.

    Pillar Optimization Post-Pillar Cut and Fill Mining in

    A Post-Pillar cut and fill mining complex is currently producing nickel sulfide in Northern Manitoba. From 2006 this area has shown a steady increase in the annual production, rising from 11 million pounds to 25 million pounds in 2010, and accounting for 33% of the total production for the Manitoba Operations.

    Cut-and-fill mining Britannica

    2021-5-11 · In mining: Cut-and-fill mining. This system can be adapted to many different ore body shapes and ground conditions. Together with room-and-pillar mining, it is the most flexible of underground methods. In cut-and-fill mining, the ore is removed in a series of horizontal drifting slices. When each slice. Read More.

    Types of Mining Methods Sell Side Handbook

    2018-3-11 · Some variations of the room-and-pillar mining method include post room-and-pillar mining and step room-and-pillar mining. Post room-and-pillar mining is a combination of room-and-pillar mining and cut-and-fill stoping mining, whereas step room-and-pillar mining is a variation of room-and-pillar mining

    Mining Funda: Cut and Fill Stoping

    2021-4-29 · Cut and Fill Stoping. Cut and fill stoping is a method of underground mining used in vertical stopes and in mining high-grade irregular ore bodies. The rock mass surrounding the ore deposit is also usually weak unable to support loads over an extended stoping height. As the name of the method

    Hard-rock room and pillar QueensMineDesignWiki

    2019-6-28 · Possibly the most used method used in conjuntion with room and pillar is cut and fill. This integrated system is used when backfill is necessitated for pillar structural support. The most common example of this is the multi-pass systems of post pillar mining where pillars would be too high to support the openings without backfill support. Room

    Mitigation strategies for mining in high stress sill

    MOB1 was converted from a post pillar cut-and-fill to a bulk operation, for MOB1 Sill Pillar recovery. From the beginning of cut-and-fill mining, it was recognised that at some point there would be a need to convert to a bulk mining method, as the mining front approached a diminishing sill pillar. The determination of the

    Underground Mining Methods and Equipment

    2020-8-25 · methods and brief explanations of the techniques of room-and-pillar mining, sublevel stoping, cut-and-fill, longwall mining, sublevel caving, and block caving. The second section describes underground mining equipment, with particular focus on excavation machinery such as boomheaders, coal cutters, continuous miners and shearers. 1.

    (PDF) Underground mining Methods ResearchGate

    The method is similar to cut and fill mining with the ex ception that after being blasted, broken ore is left in the stope where it is used t o support the surrounding rock and as

    Post-Pillar Design for Overhand Cut and Fill Mining in

    2015-5-10 · Current post pillar cut and fill design in the other existing Vale operations are used to validate the new design. Keywords: reservoir geomechanics,strength factor,Reservoir Characterization,high stress condition,knowledge management,Upstream Oil & Gas,coleman main orebody phase 3,post-pillar size,Fill Mining,rock mechanics isrm13

    Types of Mining Methods Sell Side Handbook

    2018-3-11 · Some variations of the room-and-pillar mining method include post room-and-pillar mining and step room-and-pillar mining. Post room-and-pillar mining is a combination of room-and-pillar mining and cut-and-fill stoping mining, whereas step room-and-pillar mining is a variation of room-and-pillar mining in which the footwall of an inclined ore body is adapted for use of trackless equipment.

    Mining Funda: Cut and Fill Stoping

    2021-4-29 · Cut and fill stoping is a method of underground mining used in vertical stopes and in mining high-grade irregular ore bodies. The rock mass surrounding the ore deposit is also usually weak unable to support loads over an extended stoping height. As the name of the method implies, successive cutting of the ore into horizontal slices is carried

    Mitigation strategies for mining in high stress sill

    MOB1 was converted from a post pillar cut-and-fill to a bulk operation, for MOB1 Sill Pillar recovery. From the beginning of cut-and-fill mining, it was recognised that at some point there would be a need to convert to a bulk mining method, as the mining front approached a diminishing sill pillar. The determination of the

    (PDF) Cut-and-Fill stoping ResearchGate

    Cut & Fill stoping 9. a) drill-blast of a horizontal slice of ore, typically with. three or four feet thick, removed the roof of the. stope; b) loading and transport of ore, mechanically removed

    Evaluation of crown pillar burst potential in cut-and

    The paper describes a simple method for the assessment of crown pillar bursts in steeply dipping ore deposits which are extracted by the overhand cut-and-fill method.

    Mining Engineering Quiz Mining Engineering

    A Cut and fill method. B Room and pillar method. C Post and pillar method. D All the above. View Answer Answer: All the above 5 Long wall method is: A Generally applicable to thin coal seams. B Applied to deep mining. C lt is a mining method, which is used for coal winning.

    Major Mines & Projects Mining Intelligence and News

    The mining methods used at the Ontario Operations include cut-and-fill mining (CAF), mechanized cut-and-fill mining (MCAF), underhand cut-and-fill mining (UCAF), Post Pillar CAF (PPCAF), Sublevel Cave (SLC), Blasthole Stoping (BS), Vertical Retreat Mining (VRM) and Uppers Retreat Mining (URM).

    Mining methods SlideShare

    2011-10-23 · Stoping is done under engineered, cemented rock fill due to weak ground conditions and the nearly vertical orientation of the orebody. Ground support includes 1.8 m split set bolts, wire mesh, 2.4 to 3 m resin rebar bolts and shotcrete. The Deep Post deposit is mined by underhand cut-and-fill and long-hole stoping methods.

    Viewpoint Mining Magazine Vale Inco’s

    Shrinkage mining gave way to square-set stoping, cut-and-fill mining, block caving and post-pillar mining before the mine reverted back to shrinkage mining and mechanized undercut-and-fill mining. More recently, the large-diameter blasthole method combined with vertical retreat mining was introduced.

    Pillar Optimization Post-Pillar Cut and Fill Mining in

    A Post-Pillar cut and fill mining complex is currently producing nickel sulfide in Northern Manitoba. From 2006 this area has shown a steady increase in the annual production, rising from 11 million pounds to 25 million pounds in 2010, and accounting for 33% of the total production for the Manitoba Operations.

    Post-Pillar Design for Overhand Cut and Fill Mining in

    2015-5-10 · Current post pillar cut and fill design in the other existing Vale operations are used to validate the new design. Keywords: reservoir geomechanics,strength factor,Reservoir Characterization,high stress condition,knowledge management,Upstream Oil & Gas,coleman main orebody phase 3,post-pillar size,Fill Mining,rock mechanics isrm13

    Types of Mining Methods Sell Side Handbook

    2018-3-11 · Some variations of the room-and-pillar mining method include post room-and-pillar mining and step room-and-pillar mining. Post room-and-pillar mining is a combination of room-and-pillar mining and cut-and-fill stoping mining, whereas step room-and-pillar mining is a variation of room-and-pillar mining in which the footwall of an inclined ore body is adapted for use of trackless equipment.

    TUNGSTEN Almonty Industries

    2019-7-19 · - Cut & Fill with resuing fill Cut & Fill [historic: Springer, USA] Best suited for flatly dipping veins or flat tabular skarn orebodies Room & pillar mining [example: Panasqueira, Portugal] Best suited for thicker tabular or lense-shaped orebodies with medium to steep dip (or very thick flat orebodies) Cut & fill Post pillar mining

    Mining Method Selection Discussion.docx Selection

    Room and Pillar is relatively an inexpensive option that allows for mechanised mining which leads high productivity. The down-side to Room and Pillar method is that it leads to low recovery due to some orebody being part of the pillars lef behind to provide support. Another suitable option would be the Post Pillar Cut and Fill method.

    Lalor Gold and Zinc Project, Manitoba, Canada

    2021-4-23 · Post pillar cut and fill method is being used to carry out mining. Ore and waste were initially hoisted up from the ventilation shaft and processed at the Snow Lake concentrator. These facilities were used until construction of the production shaft and new concentrator was completed in late 2014. The production shaft was sunk to a depth of 985m.

    Evaluation of crown pillar burst potential in cut-and

    The paper describes a simple method for the assessment of crown pillar bursts in steeply dipping ore deposits which are extracted by the overhand cut-and-fill method.

    C19_1.PDF Chapter 19.1 CUT AND FILL STOPING F

    In undercut and fill mining, ore loss in backfill generally does not occur, but backfill can fall out of the back, diluting the ore. 19.1.3.4 Rock Quality Designation The lower the rock quality designation of the ore and the quality of the enclosing wall rock, the more likely it is that cut and fill mining will be the favored method. 19.1.3.5

    Types of Underground Mining Method Comparison

    2017-3-16 · Rill-Cut Stoping Mining. Rill cut, or rill stoping, as shown at B, Fig. 2, has the principal advantage that when filling is used it can be run down through a raise at the apex of the stope and will fill the stope without shoveling. Its disadvantages, on the other hand, are as follows:

    Wilfried Claeys, P.Eng. Phoenix, Arizona Area

    Mining and ground support design for Mufulira Mine (mining method: sublevel open stoping) and Baluba Flat Mine (mining methods: cut and fill, post pillar cut and fill, and bench and fill).

    Post-Pillar Design for Overhand Cut and Fill Mining in

    2015-5-10 · Current post pillar cut and fill design in the other existing Vale operations are used to validate the new design. Keywords: reservoir geomechanics,strength factor,Reservoir Characterization,high stress condition,knowledge management,Upstream Oil & Gas,coleman main orebody phase 3,post-pillar size,Fill Mining,rock mechanics isrm13

    Geotechnical considerations in the design of the MOCB

    2009-8-26 · Post pillar cut and fill (PPCF) was used on the 1850 level advancing up dip to the 1660 level. The method was the OCB method and use a modified over-cut and bench method (MOCB) for new mining sections. This paper describes the geotechnical criteria included to derive

    Lalor Gold and Zinc Project, Manitoba, Canada

    2021-4-23 · Post pillar cut and fill method is being used to carry out mining. Ore and waste were initially hoisted up from the ventilation shaft and processed at the Snow Lake concentrator. These facilities were used until construction of the production shaft and new concentrator was completed in late 2014. The production shaft was sunk to a depth of 985m.

    C19_1.PDF Chapter 19.1 CUT AND FILL STOPING F

    In undercut and fill mining, ore loss in backfill generally does not occur, but backfill can fall out of the back, diluting the ore. 19.1.3.4 Rock Quality Designation The lower the rock quality designation of the ore and the quality of the enclosing wall rock, the more likely it is that cut and fill mining will be the favored method. 19.1.3.5

    Recent initiatives in reducing dilution at Konkola Mine

    2009-8-26 · The method of extraction is mainly through sub-level open stopes, which was previously the only mining method employed at the mine, and in-stope mining methods, namely post pillar cut and fill (PPCF), overcut and bench (OCB), longitudinal room and pillar (LRP) and drift and fill (DAF). The objective of reducing dilution is to

    Mining Engineering Quiz Mining Engineering

    A Cut and fill method. B Room and pillar method. C Post and pillar method. D All the above. View Answer Answer: All the above 5 Long wall method is: A Generally applicable to thin coal seams. B Applied to deep mining. C lt is a mining method, which is used for coal winning.

    TUNGSTEN Almonty Industries

    2019-7-19 · - Cut & Fill with resuing fill Cut & Fill [historic: Springer, USA] Best suited for flatly dipping veins or flat tabular skarn orebodies Room & pillar mining [example: Panasqueira, Portugal] Best suited for thicker tabular or lense-shaped orebodies with medium to steep dip (or very thick flat orebodies) Cut & fill Post pillar mining

    Types of Underground Mining Method Comparison

    2017-3-16 · Rill-Cut Stoping Mining. Rill cut, or rill stoping, as shown at B, Fig. 2, has the principal advantage that when filling is used it can be run down through a raise at the apex of the stope and will fill the stope without shoveling. Its disadvantages, on the other hand, are as follows:

    Different back fill materials used in underground

    2018-4-16 · In addition, CAF serves as crown pillar for mining stopes beneath. In a transverse method, the primary stope is filled with CAF to provide the support and competent wall while the secondary stopes are extracted. In a cut and fill method, the CAF is applied on the underhand method and is used to provide a stable back while mining the ore beneath

    Wilfried Claeys, P.Eng. Phoenix, Arizona Area

    Mining and ground support design for Mufulira Mine (mining method: sublevel open stoping) and Baluba Flat Mine (mining methods: cut and fill, post pillar cut and fill, and bench and fill).

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