bord and pillar mining at impala

Room and Pillar Mining | Safe & Efficient | Sunrise Coal

Room and Pillar Mining is Safe, Efficient & Environmentally Friendly. Room and pillar mining is a non-subsidence plan for a mine, preserving the precious farmland above.It is among the safest and one of the most ecologically-friendly approaches to mining coal today, creating a non-subsidence environment (no movement of land) and maintaining clean water standards.

Bord-and-pillar mining explained | Illawarra Mercury

May 31, 2017· Bord-and-pillar mining is used in first workings of a deposit, and when irregularly shaped deposits, or sensitive environmental conditions, call for a lighter touch.

Design of Bord and Pillar method in coal mines - SlideShare

Feb 27, 2016· Design of Bord and Pillar method in coal mines 1. Design of BORD AND PILLAR method in coal mines AASHUTOSH CHHIROLYA B.TECH (MINING) 6TH SEM. AKS UNIVERSITY SATNA MP 2. INTRODUCTION The importance of mining is definitely significant to human civilization.

Longwall Mining - an overview | ScienceDirect Topics

At present, production by longwall mining accounts for a minor amount of total underground mining production with the majority coming from bord-and-pillar methods. Since it is envisaged that longwall mining will require time to become established in India, bord-and-pillar methods will continue to be dominant in the foreseeable future. Thus, it ...

Bord & Pillar Method | Mining | Coal - Scribd

Basic parameters of bord and pillar mining system 1. Gallery (bord) 2. Pillar. 3. Junction. Calculation of percentage of extraction during development If coal from the full seam thickness is extracted, the percentage of extraction during development is nearly 20% in deep mines and 35% in shallow mines.

AngloGold, Aquarius and Impala: South African Equity ...

Jul 19, 2010· The directive will have a "detrimental economic effect" on mines that use the bord and pillar mining method, it said. Aquarius fell 1.22 rand, or 3.5 percent, to 34 rand.

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

Impala Shaft 10 - Mining Atlas

Mechanised bord and pillar mining takes place in selected areas only and accounts for between 12 and 14% of production. Limited open pit mining takes place at the outcrop position. Mining currently extends to a depth of around 1,000 metres, with most operations occurring at an average depth of 650 metres.

Definition of bord-and-pillar method - mindat.org glossary

Definition of bord-and-pillar method. A system of mining in which the distinguishing feature is the winning of less than 50% coal on the first working. It is more an extension of the development work than mining. The second working is similar in principle to top slicing. The remainder of the coal is won by a retreating system, the cover being ...

Mining | Maloma

Mining. The mine conducts conventional mining which comprises of bord and pillar mining, trackless mining with diesel load haul dumpers and, hand and air drilling for coal and jackhammers for stone development. Driving the current mine operations are 2 production sections and 2 development sections.

Bord | Definition of Bord by Merriam-Webster

Bord definition is - a straight road or passageway driven at right angles to the main cleavage of the coal in a coal mine.

Implats Mineral Resource and Mineral Reserve Statement ...

Mineral Resources and Mineral Reserves. The Impala mining operation is located just to the north of Rustenburg on the western limb of the Bushveld Complex. ... Mechanised bord and pillar (trackless) mining occurs in selected Merensky Reef areas on two of the shafts (No 12 and No 14 Shafts). ... Footwall drives are developed at approximately 18m ...

Coal Mining Methods - emfi.mines.edu

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

Major Mines & Projects | Impala Mine

Mechanised (trackless) bord and pillar mining occurs in selected Merensky Reef areas at 14 Shaft. The average stoping width of the mechanised panels is about 1.9m. Mining currently extends to a depth of around 1 000 meters, with most operations occurring at an average depth of 800 meters.

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 …

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.

Room-and-pillar mining | coal mining | Britannica.com

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…

Invetsor visit(impala)- 14Shaft- dec 2004 (final)

Dec 01, 2004· 3 Key features • Shaft diameter 7.4 m • Depth 1 152.6 m below collar • Hoisting capacity/month 250 000 tons • Production/month Ave 116 000 reef tons Ave 25 000 waste tons Hybrid section 400m dip x 1200m strike +/- 5 years – mining at a rate of 4000ca per month • Bord and pillar • Hand-held drilling • LHD cleaning • Conveyor strike belts

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

Bord and pillar mining Next. 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.

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 individual needs of course instructors.

Impala Shaft 6 - Mining Atlas

Impala Shaft 6 is a Platinum Group Metals Mine (Rustenburg) in South Africa owned by Impala Platinum. General: Impala holds contiguous mining rights and prospecting rights for a total of 260 square kilometres in the area around Rustenburg. Operations comprise 1...

Pillar - an overview | ScienceDirect Topics

Pillar mining, also known as "Room and Pillar" or "Bord and Pillar" mining, is the most common type in underground coal mining because of its flexibility at low capital expenditure. The method is suitable for narrow (2-4 m thick) coal seam free from stone bands. The seams are located at moderate depth having strong roof and floor which can stand for long period after development.

Board and Pillar - YouTube

Jun 12, 2008· Hi Kids. I wanted to show you a video that describes board and pillar mining of coal. My job at the Board is to educate children and young adults on …

Pick-and-shovel mining – Coal and coal mining – Te Ara ...

Pick-and-shovel mining (1st of 3) Next. These West Coast miners from the end of the 19th century pause in their labours. The traditional technique for extracting coal, which miners brought from Britain, depended entirely on muscle power. ... Bord and pillar mining. Previous To the story Next. Mechanical mining . How to cite this page: Alan ...

The Merensky and UG2 Reefs are mined concurrently; the ...

concurrently; the mining method is predominantly conventional breast mining IMPALA MINERAL RESOURCES AND MINERAL RESERVES The Impala mining operation is located just to the north of Rustenburg on the western limb of the Bushveld Complex. The location of the Impala operation showing the adjacent mines is shown in the accompanying locality map.

Bord & Pillar – Mining Science and Technology

As bord and pillar workings are developed roof support becomes a major consideration and operating cost item. Support requirements vary considerably and are dependent on the physical conditions in the seam, which are often depth dependent, and the length of …

Room and pillar mining - Wikipedia

Room and pillar (variant of breast stoping), is a mining system in which the mined material is extracted across a horizontal plane, creating horizontal arrays of rooms and pillars. To do this, "rooms" of ore are dug out while "pillars" of untouched material are left to support the roof overburden.Calculating the size, shape, and position of pillars is a complicated procedure, and is an area of ...

Mimosa - Sibanye-Stillwater

Mining takes place less than 200 m below surface, utilising the bord-and-pillar mining method. Ore is processed at a concentrator located on site, at the rate of approximately 227,000 tonnes per month; concentrates are trucked to South Africa for smelting and refining at Impala Platinum facilities.

Mechanised mining in the spotlight - Miningmx

Jul 16, 2010· Shepherd pointed out Implats lost about 20% of its production from bord and pillar mechanised stopes following the reduction in panel width. He said Aquarius Platinum appeared to be the company which was the most exposed to such changes, because it derived at least 85% of its South African production from mechanised bord and pillar mining.

Bord and Pillar mining - Mining

Our cutting tools for bord and pillar mining fit either continuous miners or roadheader machines. They feature a hardened steel body/shank fitted with a wear and impact resistant tungsten carbide tip. Depending on the application, we also...

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