Our bord and pillar method ppt

Room And Pillar Coal Mining Ppt - scout94roux.be

room and pillar mining method – Grinding Mill China. room and pillar coal mining ppt. Underground Mining: There are two main methods of extracting coal by underground mining: room-and-pillar (or, bord -and-pillar, The underground mine employs a modified room and pillar mining method, bord and pillar coal mining ppt » Learn More. Get More →

Bord And Pillar Mining

bord and pillar mining - Newest Crusher, Grinding Mill . bord and pillar mining Room and pillar mines, Mining Techniques, Underground Mining, . Room and pillar is also known as bord and pillar is a mining system in which the mined material is taken out across a horizontal plane while leaving pillars of .

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

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 method creates the required, higher extraction percentage and higher Run of

Bord & Pillar Method | Mining | Coal - Scribd

Bord & Pillar Method - Download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. underground coal mining

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL …

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL COAL MINES ... Bord and Pillar method of mining. Bord and Pillar method of mining is one of the oldest methods of mining. The success of Bord and Pillar mining is selecting the ... Bord and Pillar workings without compromising the safety factor 1.1 Aim of the study: The goal of the present ...

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.

Coal Mining Methods - EMFI

Coal Mining Methods Underground Mining Longwall & Room and Pillar Mining Longwall mining and room-and-pillar mining are the two basic methods of mining coal underground, with room-and-pillar being the traditional method in the United States. Both methods are well suited to extracting the relatively flat coalbeds (or coal seams) typical of

Bord and pillar method,applicability condition an - YouTube

Feb 05, 2018· Bord and pillar method Applicability condition of Bord and pillar method Advantage and disadvantage of Bord and pillar method. Bord and pillar method Applicability condition of Bord and pillar ...

Gr5finalUnderground Mining Method Ppt | Mining (635 views)

Gr5finalUnderground Mining Method Ppt - Download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. Underground Mining Methods Group 5 Underground Mining Methods Coal Mining Metal Mining Bord and Pillar Unsupported Mining Supported Mining Caving mining Longwall Room and Pillar Cut and fill Longwall Blasting galllery Stope and Pillar ...

stope and pillar mining methods

2) Room (Bord)-and-Pillar mining (or continuous mining) method It is the most common supported pillar method, designed and used primarily for mining flat-lying seams, or tabular orebodies, or gently dipping bedded ore deposits of limited thickness (like coal, oil shale, limestone, phosphate, salt, trona, potash, and bedded uranium ores,).

Bord and Pillar mining by continuous Miner in HINDI - YouTube

Jul 29, 2016· Bord and pillar is an underground mining method for extracting coal from belowground of earth. Various machinery combinations are used for extracting. One of the combination is …

UNDERGROUND COAL MINING: FACTORS, COST, AND …

UNDERGROUND COAL MINING: FACTORS, COST, AND TIME CONSIDERATIONS Presented by: Mark A. Williams Executive Vice President – Engineering Services ... • Two primary methods employed –Room and Pillar –Longwall. Definition of Room and Pillar Mining • A system of extracting coal by driving a series of openings referred to as

MINING METHODS T - scienceandtech.cmpdi.co.in

safety factors of pillars between conventional bord and pillar system and wide stall method of working is given in table 3. Sub-level Caving In addition to the development of a suitable method for extraction of developed coal seams R&D effort was also directed towards optimum extraction of thick seams, which constitutes a Sub-level ...

Bord And Pillar Mining Conveyor Methodology - cz-eu.eu

Method - University of Wollongong Bord and Pillar Website,Method Overview. The fundamental concept of bord and pillar . Get Price And Support Online; bord and pillar coal mining ppt grinding mill. belt conveyors principles for calculation and design; A half-century of technological innovation. - . One of such methods is the Bord and Pillar ...

Bord-and-pillar mining explained | Illawarra Mercury

May 31, 2017· Bord-and-pillar extraction is the older of the methods, and The word "bord" is not a misspelling of "board", but a mining term for an underground space or room created to access the coal ...

Mining Funda: Bord and Pillar method of Mining

Bord and pillar mining method comprises two phases i.e DEVELOPMENT and DEPILLARING. Sometimes both these phases proceeds simultaneously. In development, pillars are formed by driving a network of galleries, of which one set is generally parallel to the dip and the other set is parallel to the strike cutting the former at right angles.

power point presentation on board and pillar mining

bord and pillar mining method - crusherasia bord and pillar coal mining ppt,, power point presentation on board and pillar mining . Get More; power point presentation on board and pillar mining. evaluation of bord and pillar mining system in mcl coal mines - ethesis The most pleasant point of presenting a thesis is the opportunity to thank .

Room and Pillar Mining Method - SlideShare

Oct 22, 2014· Room and Pillar Mining Method 1. Hassan Z. Harraz [email protected] 2014- 2015 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the …

room and pillar ppt

room and pillar coal mining ppt. Underground Mining: There are two main methods of extracting coal by underground mining: room-and-pillar (or, bord -and-pillar, The underground mine employs a modified room and pillar mining method, bord and pillar coal mining ppt » Learn More.

power point presentation on board and pillar mining

typical bord and pillar mine plan ppt. Posted at:March 14, ... bord and pillar … powerpoint presentation ... bord and pillar mining – BINQ Mining. ... of the orebody that are left un-mined. Room-and-pillar mining method has a ... for the Boards and Pillars method to ... Contact Supplier Next: what are the companies involved in mining of ...

Bord and Pillar Methods. | Coal, Colliery and Mining Forum.

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Coal mining methodsCoal mining methods

Coal mining methodsCoal mining methods ... Room (Bord)Room (Bord)--andand--pillar pillar (Continuous miner and shuttle car) 2222. WongawilliWongawilli method and break line method and break line support(Bt(LBSL)S)t (BLS) 2323. Long all miningLongwall mining

Room and pillar mining - Wikipedia

Room and pillar mining was one of the earliest methods used, although with significantly more man-power. 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.

NSW Mining Methods - NSW Mining

Bord-and-pillar: Bord-and-pillar, or room-and-pillar, is the oldest underground mining technique and was common in NSW before longwall mining began in the 1960s. This method uses a grid of tunnels and involves progressively cutting panels into the coal seam whilst leaving behind pillars of coal to support the mine. This method has been in ...

typical bord and pillar mine plan ppt - BINQ Mining

typical bord and pillar mine plan ppt. ... Typical bord-and-pillar method 18 … for the Life Of Mine Plan • Footwall … Analyst – Marula Sep 2004 Ian.ppt Author: eric ... bord and pillar mining – BINQ Mining. mining bord and pillar mine Information & Research. …

bord and pillar mining conveyor methodology

bord and pillar mining conveyor methodology longwall method ppt dwnlod. of bord and pillar mining system in mcl ...takes the coal to the conveyor belt for and ... Chat Online . bord and pillar mining method - crusherasia.com.

Increasing Production Time in Continuous Mining Methods

Increasing Production Time in Continuous Mining Methods EE Dorey D McGinness SYNOPSIS The use of continuous miners in a conventional bord and pillar section results in a considerable amount of unproductive time. This is due to the roof support requirements, continuous miner configurations, and shuttle car 'change-outs'. These factors have

(PDF) Underground Mining Methods: Room and Pillar method

PDF | Practical importance of the Room and pillars method Different applications of the R & P method R & P in hard rocks: Conditions of deposit for application of R & P in hard rock R & P ...

Pillar Strength and Design Methodology for Stone Mines

Pillar Strength and Design Methodology for Stone Mines Gabriel S. Esterhuizen, Sr. Research Engineer Dennis R. Dolinar, Lead Research Engineer John L. Ellenberger, Lead Research Scientist NIOSH-Pittsburgh Research Laboratory Pittsburgh, PA ABSTRACT Underground stone mines in the United States make use of the room-and-pillar method of mining.

COAL MINING TECHNOLOGY - e-library WCL

•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.

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