bord and pillar mining method

Bord-and-pillar mining in inclined orebodies SAIMM

2009-8-27 · proven mining method in these conditions and has a lower risk operational failure. Bord-and-pillar mining has some favourable promises such as improving labour difficulties, lowering operating costs and providing safer working conditions. The success of mechanized bord-and-pillar mining in narrow tabular steep dipping orebodies

bord and pillar mining conveyor methodology

bord and pillar mining conveyor methodology The Oil Drum Coal Mining Mechanized Room and Pillar Mining, Specifically I am going to describe how the "Bord and Pillar" mining of the more mechanized mining method, known as "Room and Pillar" mining . the coal from the continuous miner to the main belt conveyor transfer point,

Room and Pillar Mining Method SlideShare

Room and Pillar Mining Method 1. Hassan Z. Harraz [email protected] 20142015 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 individual needs of course instructors.

The Duncan Method of Partial Pillar Extraction at Tasman

2017-9-6 · 2011 Underground Coal Operators' Conference The AusIMM Illawarra Branch 8 10 11 February 2011 THE DUNCAN METHOD OF PARTIAL PILLAR EXTRACTION AT TASMAN MINE Kent McTyer1 and Tony Sutherland2 ABSTRACT: Mining commenced at Tasman Mine in late 2006.The current method of mining is bord and

Design of Bord and Pillar method in coal mines

This method is sometimes called room-and-pillar mining. This can be better understand with the help of follwing fig . 6. APPLICABILITY OF BORD AND PILLAR METHOD The Bord and Pillar method is adopted for working. 1. A seam thicker than 1.5 m, 2. A seam free from stone or dirt bands.

Pillar Extraction using Continuous Miners |

PILLAR EXTRACTION USING CONTINUOUS MINERS. Overview. Now that longwall equipment has been developed to a stage where it is able to cope with most conditions satisfactorily, longwall mining is the most widely used method of secondary extraction.

PREVIOUS AND CURRENT MINING METHODS. UPSpace

2015-4-14 · Mining method and equipment 4.2.1 General The bord and pillar mining layout will be maintained because of its reliability, flexibility, low capital cost, low working costs and large skills source availability (Woodruff, 1966). Increasing mechanization has resulted in an increasing production in the amount of the fine coal

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

2009-8-26 · mining method. The outcome of this investi-gation is to see if there is a solution to the current problems in the problem statement. The management of Frank 1 shaft decided on the T-Cut mining method because the current bord and pillar development method don not have to be altered. The objective of the T-cut mining method is to increase the UG2

bord and pillar mining conveyor methodology

bord and pillar mining conveyor methodology The Oil Drum Coal Mining Mechanized Room and Pillar Mining, Specifically I am going to describe how the "Bord and Pillar" mining of the more mechanized mining method, known as "Room and Pillar" mining . the coal from the continuous miner to the main belt conveyor transfer point,

Pillar Strength and Design Methodology for Stone Mines

2012-8-30 · 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.

THE MODERN WONGAWILLI METHOD Mining

Home / Bord & Pillar / Method / Modern Pillar Extraction The size of the stooks and fenders can be changed as dictated by prevailing conditions and experience of the mining officials. output is attributed to the deployment of continuous bridge conveying or chain haulage system with place change method of heading development and pillar

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN

2010-5-13 · EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL COAL MINES 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 then significant

THE TRADITIONAL WONGAWILLI METHOD Mining

The production and productivity of the method using the continuous miner and shuttle cars was in the order of 500 tonnes per shift, particularly during fender lifting. The Wongawilli method has, in the past, been used for mining coal both in advance and retreat.

The Duncan Method of Partial Pillar Extraction at Tasman

2017-9-6 · 2011 Underground Coal Operators' Conference The AusIMM Illawarra Branch 8 10 11 February 2011 THE DUNCAN METHOD OF PARTIAL PILLAR EXTRACTION AT TASMAN MINE Kent McTyer1 and Tony Sutherland2 ABSTRACT: Mining commenced at Tasman Mine in late 2006.The current method of mining is bord and

Coal Mining Methods EMFI

2011-7-28 · 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

Room-and-pillar mining | coal mining | Britannica

2019-6-16 · Other articles where Room-and-pillar mining is discussed: mining: Room-and-pillar mining: The most common mining system is room-and-pillar. In this system a series of parallel drifts are driven, with connections made between these drifts at regular intervals. When the distance between connecting drifts is the same as that between the parallel drifts, then a

() Underground Mining Methods: Room and Pillar

Underground Mining Methods: Room and Pillar method. coal applications R & P classic Step mining Post-pillar mining Configuring the R & P method in coal Main design parameters of R & P in coal

Bord and Pillar coal, pillars and method

2011-4-15 · BORD AND PILLAR. The bord and pillar method of working coal is perhaps the first systematized method practised. In this method narrow roads are driven in the coal seam so as to form pillars, which are subsequently removed.

equipments used in board and pillar coal mining

This method is also used to mine metallic minerals mining in NSW are bord-and-pillar and longwall mining. Board & Pillar SlideShare All information about to UnderGround coal mining method of Board & Pillar to use equipment on tires at the same for the Boards and Pillars method to

EVALUATION OF UNDERGROUND COAL PILLAR DESIGN

2011-5-15 · mining include Longwall mining and Bord and Pillar method of mining. The method mostly prevalent in the Indian underground mines is the Bord and Pillar method of mining because of its history and ease of operation. The most important aspect of Bord and Pillar mining

Bord and Pillar mining by continuous Miner in HINDI

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Major Mines & Projects | Wessels Mine

The Wessels mine is situated in the Northern part of the Kalahari Manganese field. Mineralisation of the Kalahari Manganese field is developed in three braunite-kutnahorite lutite layers interbedded with iron formation in the Hotazel Formation of the Palaeoproterozoic (2400 to 2100 Ma) Transvaal Sequence which was deposited within an intracratonic basin on the Kaapvaal Craton.

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

2013-8-16 · 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

EVALUATION OF PILLAR DESIGN SYSTEMS FOR LOW

The success of a bord and pillar mining method in the exploitation of platinum heavily depends on a comprehensive and competent pillar design method. Pillars need to be large enough to contain

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

2009-8-26 · 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