Skip to main content
Hsdian Construction Machinery - North America

Home / Bord And Pillar Mining At Impala

Bord And Pillar Mining At Impala

Hot Products

Major Mines & Projects | Impala Mine

Mar 10, 2020 · Breast mining; Bord-and-pillar; Summary: The Merensky and UG2 Reefs are mined concurrently at Impala. Stoping at the operations is carried out through conventional double-sided breast mining in accordance with Impala’s best practice principles. The access haulages are developed in opposite directions from cross-cuts connected to a central ...

Read More

Mimosa Platinum Mine, Great Dyke region, Zimbabwe

The mining method used at the Mimosa platinum mine is the bord-and-pillar mining method, with an average stoping width of 2m. ... The resultant concentrates are sent to South Africa through trucks to Impala Platinum facilities, where they are smelted and refined before being packed and

Read More

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

Jun 01, 2017 · Bord-and-pillar extractionis the older of the methods, and The word“bord” is not a misspelling of“board”, but a mining term for an underground space or

Read More

Bord and pillar mining method || underground mining method ...

Dec 17, 2019 · Hi everyone, In this video we are discussing about the underground mining method , basically what is bord and pillar mining method , wha...

Read More

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

Read More

Bord-and-pillar mining simulation - YouTube

Sep 11, 2018 · Dynamic simulation model of a 9-section underground coal mining operation at Anglo American's Zibulo Colliery, showing bord-and-pillar mining operations and ...

Read More

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 ...

Read More

Hard-rock room and pillar - QueensMineDesignWiki

Room and pillar is an underground mining method that has applications to a wide variety of hard-rock deposits worldwide. It is commonly classified as an open-stoping method, meaning that development involves mining out underground cavities while leaving the

Read More

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL

The success of Bord and Pillar mining is selecting the optimum pillar size. If the pillars are too large, then the extraction ratio decrease leading to less production and profitability and if the pillars are too small it becomes venerable to human safety. The issues relating to the stability of pillars

Read More

Bord-and-pillar mining in inclined orebodies

different bord-and-pillar layouts were designed. These layouts were then evaluated according to dilution, produc-tivity, cost implications, profit and mining flexibility and the most suitable layout was chosen. Bord-and-pillar mining was then compared to conven-tional mining according to the following: financial analysis, dilution and flexibility.

Read More

Mimosa Platinum Mine, Great Dyke region, Zimbabwe

The mining method used at the Mimosa platinum mine is the bord-and-pillar mining method, with an average stoping width of 2m. ... The resultant concentrates are sent to South Africa through trucks to Impala Platinum facilities, where they are smelted and refined before being packed and

Read More

Two Rivers Platinum Mine: the orebody, the mining

Impala Platinum, respectively. TRP is situated on the farm Dwarsrivier 372KT, in the southern ... The mining method is a mechanized bord and pillar layout, which will yield a total of 185 000 ... mechanized room and pillar stoping method. A mining section consists of eight 12 m rooms, with pillar sizes

Read More

Two Rivers Platinum Mine: the orebody, the mining

African Rainbow Minerals and Impala Platinum, respectively. TRP is situated on the farm Dwarsrivier 372KT, in the southern sector of ... The mining method is a mechanized bord and pillar layout, which will yield a total of 185 000 tons at full run of mine production from the underground UG2 mine.

Read More

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.

Read More

Mechanised mining at 12 shaft - Implats

Dec 01, 2004 · Impala 0 500000 1000000 1500000 2000000 2500000 1,023,608 1,859,000 2,200,000 2,103,000 1,920,000 FY05 FY06 FY07 FY08 FY09. 6 11 12 Shaft Decline 12 12 Shaft South Decline. 7 13 ... Bord-and-pillar mining layout 2 4 6m 12m 12m 4m 6m 18m 6m 6m Down DipDip M a i n h D i p C o n v e y o r o n e Strike Belt 1 1 3 S o u t h I I n t a k e A i r w a y ...

Read More

Major Mines & Projects - Mining Intelligence and News

Current mining consists of 5.5m to 7m bord sizes with 8m by 4m for the whole mine. The bord sizes are 7m, 6.5m and 5.5m in GCD class C, D and E respectively. The strike pillars in panels are elongate on strike so that the longest dimension of the pillar intersects the

Read More

Room and pillar / entry development - Underground mining ...

The Joy room and pillar/entry development product suite is extremely robust, including continuous miners, entry development equipment, haulage systems, feeder breakers, bolters, and loaders. All our equipment is designed to work seamlessly together as a system, providing the

Read More

Design of Bord and Pillar method in coal mines

Feb 27, 2016 · 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 method predominates are Australia, The USA and South Africa.

Read More

Mining simulation for room and pillar coal

Mining simulation for room and pillar coal operation by S.P. Pereira*, J.F.C.L. Costa†, P. Salvadoretti†, and J. Koppe† Synopsis The mechanized mining cycle using loaders and shuttle cars had its peak in terms of usage in the mining industry during 1950 through 1960. In Brazil, this system is still used at underground coal mines

Read More

Schalk Engelbrecht - Mine Manager - Impala Platinum | LinkedIn

• Have strong knowledge on underground narrow reef and bord and pillar mining methods in a hard rock mining environment. • Advice on mining layouts (Conventional & TMM) in consultation with the mine engineering, mine planning, rock engineering (geotechnical), ventilation, geology

Read More

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.

Read More

Research Report on the Coal Pillar Recovery under Deep

University (WVU), a study of the recovery of coal pillars through retreat room-and-pillar mining practices in underground coal mines at depths greater than 1,500 ft. The study should examine the safety implications of retreat room-and-pillar mining practices, with emphasis on the impact of full or partial pillar extraction mining.

Read More

Room-and-pillar mining | coal mining | Britannica

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

Read More

Mimosa | Sibanye-Stillwater

2 天前 · 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.

Read More

Mimosa | Sibanye-Stillwater

2 天前 · 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.

Read More

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

Read More

Research Report on the Coal Pillar Recovery under Deep

University (WVU), a study of the recovery of coal pillars through retreat room-and-pillar mining practices in underground coal mines at depths greater than 1,500 ft. The study should examine the safety implications of retreat room-and-pillar mining practices, with emphasis on the impact of full or partial pillar extraction mining.

Read More

Dendrobium urged to use bord and pillar mining techniques ...

Dendrobium urged to use bord and pillar mining techniques THE New South Wales Independent Planning Commission should not approve South32’s proposed Dendrobium extension project if it does not adopt bord and pillar mining techniques to avoid damage to the Sydney catchment waterways, Lock the Gate Alliance insists.

Read More

Subsidence risk assessment of decommissioned bord-and ...

Jun 01, 2013 · 1. Introduction. Underground mining of coal has been undertaken in the United Kingdom since the 13th century , , , since at least the 15th century in continental Europe and since the 18th century in the United States .In Australia, the Ipswich region of Queensland was a centre of mining from the mid 19th century to the late 20th century, with both underground and open cut mining operations .

Read More

Design of Bord and Pillar method in coal mines

Feb 27, 2016 · 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 method predominates are Australia, The USA and South Africa.

Read More

Mining simulation for room and pillar coal

Mining simulation for room and pillar coal operation by S.P. Pereira*, J.F.C.L. Costa†, P. Salvadoretti†, and J. Koppe† Synopsis The mechanized mining cycle using loaders and shuttle cars had its peak in terms of usage in the mining industry during 1950 through 1960. In Brazil, this system is still used at underground coal mines

Read More

An intelligent approach to predict pillar sizing in ...

Jan 01, 2014 · The occurrence of pillar failure in underground coal mines entails detrimental effects on miners in the form of injury, disability or fatality as well as mining company due to downtimes, interruptions in the mining operations, equipment breakdowns, etc. Proper pillar design is the key to prevention of pillar failure and reduction of related ...

Read More

CHAPTER 11 Mining Technology

mining. Longwall mining is also scheduled to be installed at other large underground oper-ations in the West. For these reasons, much of this chapter compares longwall mining with the dominant underground mining tech-nology in the West—room-and-pillar mining with continuous miners. Federal coal reserves in the Rocky Moun-

Read More

Pillar design in coal mines - SlideShare

May 06, 2011 · Cascading Pillar Failure (CPF) CPF is a potential problem faced by all Bord-and-pillar mining operations. CPF occurs when one pillar fails suddenly, which then overstresses the neighboring pillars, causing them to fail in very rapid succession. Within seconds, very large mining areas can collapse while giving little or no warning. ...

Read More

SERVICES – Triple M Mining

Triple “M” Mining is also proud of our expertise in Trackless and Mechanized Mining method s as well as fleet sourcing and maintenance disciplines.Operational experience in Trackless Development and Board and Pillar Reef extraction is our forte.We proudly manage and maintain our fleet of machinery and place focus on down time elimination by ...

Read More

Optimization of Continuous Miner Operations in Bord and ...

Bord and pillar mining The following methods are commonly used in bord and pillar method for development and depillaring using continuous miner: Development 1. Bord and pillar method Depillaring 1. Split and Fender system 2. Nevid method of mining Continuous miner A continuous miner is a large steel drum equipped with a

Read More

Room and Pillar / Entry Development - Underground Mining ...

The Joy room and pillar/entry development product suite is extremely robust, including continuous miners, entry development equipment, haulage systems, feeder breakers, bolters, and loaders. All our equipment is designed to work seamlessly together as a system, providing the

Read More

Academics in Bord and Pillar Mining Technology - Academia.edu

View Academics in Bord and Pillar Mining Technology on Academia.edu.

Read More