+86 0371 8654 9132

Bord And Pillar Mining At Impala

Major Mines Projects Impala Mine

Stoping widths are approximately 1.4m and 1.1m for conventional Merensky and UG2 Reefs, respectively, depending on the width of the economical reef horizon. 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.

More

Mechanised mining at 12 shaft

2017-8-18  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 ...

More

Impala Platinum: Defined by geology - African Mining Online

2019-12-11  At Impala Rustenburg (on the western limb of the Bushveld Complex), for example, the Merensky and UG2 reefs are mined concurrently by means of conventional breast mining. Mining extends to a depth of about 1 000m. The stoping width for the Merensky Reef is narrow, typically about 1.3m, and for the UG2 reef

More

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN

2010-5-13  The key to the successful Bord and Pillar mining is selecting the optimum pillar size. If thepillarsaretoosmalltheminewillcollapse.Ifth epillarsaretoolargethensignificantquantitiesofvaluablematerialwillbeleftbehindreducingt heprofitabilityofthemine.Thepercentageofmaterial mined varies depending on many factors, in cluding the material mined,

More

Bord-and-pillar mining in inclined orebodies

2009-8-27  Bord-and-pillar mining is applicable to horizontal to flat dipping thin tabular orebodies where the surrounding hangingwall and the ore itself are relatively competent and require no

More

Two Rivers Platinum Mine: the orebody, the mining

2016-2-16  Two Rivers Platinum Mine (TRP) is a 55:45 joint venture between African Rainbow Minerals andImpala Platinum, respectively. TRP is situated on the farm Dwarsrivier 372KT, in the southernsector of the eastern limb of the Bushveld Complex. Dwarsrivier is underlain by rock formationsof the Critical Zone (Winterveld norite-anorthosite) and the Main Zone (Winnarshoek norite-anorthosite).

More

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

2017-5-31  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. This method

More

bord pillar miners Archives - International Mining

2021-8-24  Mastermyne will provide underground mining equipment from its current fleet, including three bord pillar miners, multi bolters and shuttle cars along with a range of ancillary production equipment to support the operation. The contract is expected to deliver on average A$80-100 million of revenue per year once in full production, Mastermyne says.

More

Optimization of Continuous Miner Operations in Bord and ...

2020-6-18  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

More

Design of Bord and Pillar method in coal mines ...

2020-9-17  It Is referred to as depillaring or broken. One of the oldest method of mining is Bord and Pillar. It is method in which the mined material is extracted across horizontal plane while leaving pillars of untouched material to support the overburden leaving open areas or

More

Mechanised mining at 12 shaft

2017-8-18  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 ...

More

New Technology – Technical Review - Impala Platinum

2017-8-18  • Mining layout • Bord-and-pillar mining • 6 x 12m bords ideal for this equipment and fit perfectly with the mining cycle • Cycle • drill 2/Clean 2/Support 2 bords per shift • Production • target – 1 890 ca/month double shift • achieved – 700 ca/month 1st double shift • currently in use at 12#

More

Two Rivers Platinum Mine: the orebody, the mining

2016-2-16  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 tons at full run of mine production from the underground UG2 mine. 152 PLATINUM SURGES AHEAD

More

An investigation of factors contributing to low face time ...

2021-3-26  The Impala Platinum mining operation is located just to the north of Rustenburg on the western limb of the Bushveld Complex. The mine holds contiguous mining and ... Mechanised (trackless) bord and pillar mining occurs in selected Merensky . 3 Mining . time. 14# Impala 14

More

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

2017-5-31  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. This method is used at ...

More

Optimization of Continuous Miner Operations in Bord and ...

2020-6-18  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

More

bord pillar miners Archives - International Mining

2021-8-24  Mastermyne will provide underground mining equipment from its current fleet, including three bord pillar miners, multi bolters and shuttle cars along with a range of ancillary production equipment to support the operation. The contract is expected to deliver on average A$80-100 million of revenue per year once in full production, Mastermyne says.

More

(PDF) Success of Continuous Miner in Bord and Pillar Method

This paper deals with the use of continuous miner and its success in bord pillar method of underground coal mining. Discover the world's research 20+ million members

More

TOWARDS AN IMPROVED PILLAR DESIGN

2012-9-6  a safety factor of 1.6. Single-seam mining is the term used when the Main Chromitite Seam is mined, and dual-seam mining is when both the Main Seam and the Leader Seam are being mined (Figure 2). Pillar sizes and spans have undergone many changes since the operation commenced, and current panel spans (bord widths) and pillar holings (splits ...

More

Exploitation of developed coal mine pillars by shortwall ...

Introduction. In India, underground coal production is mostly dependent upon the conventional bord and pillar (room and pillar) method of mining, although the overall output per man shift (OMS) through this method is generally not more than 1. ton in any of the mines [1].. Large areas in all the subsidiaries of Coal India Limited and even in Singarani Coal Companies Limited (India) have been ...

More

New Technology – Technical Review - Impala Platinum

2017-8-18  • Mining layout • Bord-and-pillar mining • 6 x 12m bords ideal for this equipment and fit perfectly with the mining cycle • Cycle • drill 2/Clean 2/Support 2 bords per shift • Production • target – 1 890 ca/month double shift • achieved – 700 ca/month 1st double shift • currently in use at 12#

More

SA mine accident kills nine Impala Platinum workers

2009-7-21  SA mine accident kills nine Impala Platinum workers: ... The Department of Mineral Resources said that all mechanised operations using the bord-and-pillar mining system at Implats had been stopped ...

More

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

2017-5-31  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. This method is used at ...

More

Pillar design in coal mines - Journals

The paper points out that bord-and-pillar mining is the most important method of coal extraction in South Af~ican underground coal mines, and advocates that pillar design procedures should be refined to make more rational allowance for the differences in strength properties

More

Bord And Pillar Method Of Mining » MiningPathsala ...

2021-7-14  In this post, we have discussed about Bord And Pillar Method Of Mining.So, read this post carefully to know about Bord And Pillar Method Of Mining . “Bord pillar method” consists of driving the gallery parallel to one another and connecting them with each other by making solid block of coal called pillar.

More

(PDF) Success of Continuous Miner in Bord and Pillar Method

This paper deals with the use of continuous miner and its success in bord pillar method of underground coal mining. Discover the world's research 20+ million members

More

A method of designing bord and pillar workings

rationalises many years of mining experience, can be used to solve practical problems. In this paper a practical method of the design of simple bord and pillar layouts is discussed. ‘Collieries Research Laboratory, Chamber of Mines of South Africa. ¹ é ô ö ó è ù ç é è æ ý º å æ í ò é ø ® å ø é û å ý ù ò è é ö ð ...

More

TOWARDS AN IMPROVED PILLAR DESIGN

2012-9-6  a safety factor of 1.6. Single-seam mining is the term used when the Main Chromitite Seam is mined, and dual-seam mining is when both the Main Seam and the Leader Seam are being mined (Figure 2). Pillar sizes and spans have undergone many changes since the operation commenced, and current panel spans (bord widths) and pillar holings (splits ...

More

Solved: QUESTION 1 How Is The Cutting Sequence In Bord

Transcribed Image Textfrom this Question. QUESTION 1 How is the cutting sequence in bord and pillar mining, affected by the following factors: - Equipment, Cycle times, Production, Ventilation, and Industry standards. [15] QUESTION 2 On average, the continuous miners produced coal at a rate of 76 t

More