bord and pillar mining at impala

FACT SHEET IMPALA - Implats

FACT SHEET IMPALA. 2 Impala, Implats’s 96% owned primary operational unit has operations situated on the western limb of the world- ... predominantly conventional breast mining. Mechanised bord and pillar mining occurs in selected Merensky Reef areas on two of the shafts (12 and 14 Shafts).

EVALUATION OF BORD AND PILLAR MINING SYSTEM IN …

This is to certify that the thesis entitled “EVALUATION OF BORD AND PILLAR MINING SYSTEM IN MCL COAL MINES” submitted by Sri Ram chandra Nayak, Roll No. 10605015 & Sri Sangram keshari Dalai, Roll No. 10605027 in partial fulfillment of the requirements for the

What Is a Room and Pillar? (with picture) - wisegeek.com

Jun 24, 2019· This mining technique works best for materials located along the same horizontal plane, or stratum. Room and pillar mining may also be known as bord and pillar mining in some areas. Throughout history, miners have used a random room and pillar mining strategy to extract minerals from the earth. Workers would simply mine in certain areas and ...

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 ...

Sabinet | Two Rivers Platinum Mine : the orebody, the ...

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

A Probabilistic Structural Design Process for Bord and ...

Figure 2. Schematic presentation of the steps involved in the FLAC2D/Hoek-Brown and System Pillar Equilibrium/SPEC methodology. The comparison of the improved method with underground observations: Two bord and pillar mines in the Bushveld complex were selected for calibration, Two Rivers and Impala Platinum Mines, to test the proposed methodology.

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 ...

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.

Toward Pillar Design to Prevent Collapse of Room-and ...

Room-and-pillar mining accounts for a significant portion of the total mineral production in the United States As shown in table 1, well in excess of $6 billion worth of mineral commodities are produced each year by this method. ... Toward Pillar Design to Prevent Collapse of Room-and-Pillar Mines ...

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 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. This method is used at ...

Bord-and-pillar mining in inclined orebodies - SAIMM

bord-and-pillar mining in narrow tabular steep dipping orebodies will depend on the extent of the research and development efforts which need to create and innovate technologies to overcome some of the current limitations stated in the above-mentioned parameters.

Impala Platinum Ltd | Yellow Pages

Impala Platinum Ltd ... Mechanised bord and pillar mining occurs in selected Merensky Reef areas at 14 Shaft. While maintaining our social licence to operate, we will continue our cash preservation initiatives as well as the drive to enhance productivity and profitability. We continue to invest in our operations and will mechanise and optimise ...

Principles of Room & Pillar Mining - YouTube

Sep 10, 2012· This video provides a basic description of the room & pillar mining method for extracting coal underground. It includes an explanation of the different products working together in a room & pillar ...

Two Rivers Platinum Mine: the orebody, the mining …

African Rainbow Minerals and Impala Platinum, respectively. TRP is ... 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. ... Two Rivers Platinum Mine: the orebody, the mining …

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 …

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.

Implats Distinctly Platinum | Operations | Operations

Impala. Impala, Implats’ 96%-owned primary operational unit, has operations on the western limb of the world-renowned Bushveld Complex near Rustenburg in South Africa. This operation comprises a 10-shaft mining complex and concentrating and smelting plants. The base and precious metal refineries are in Springs, east of Johannesburg.

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…

Room and pillar mining method - Epiroc - YouTube

Apr 05, 2019· Room and pillar is a common mining method mining ore bodies with a dip less than 50 degrees. There are different variations of the method, depending on rock conditions and the dip and thickness of ...

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 ...

Bord and pillar working with LHD/SDL - SlideShare

Jun 10, 2015· Equipment selection for bord and pillar mining Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

Major Mines & Projects | Mimosa Mine

The bord and pillar mining method is employed and stoping widths average around 2 metres. Mining bords advance along the strike. The mining cycle involves mechanised support drilling and installation, mechanised face drilling, charging and blasting, and mechanised lashing onto a conveyor network to an underground bunker.

Productivity Improvement in Underground Coal Mines - A ...

The only way to achieve this is to reduce production costs by improving productivity, efficiency and the effectiveness of the equipment. This paper aims to identify the various factors and problems affecting the productivity of underground coal mines adopting the bord and pillar method of mining and to propose suitable measures for improving them.

DMR backs down on Aquarius - Miningmx

Jul 20, 2010· The instruction stated that, “all mining companies in the North West region employing the bord and pillar mining method are instructed..to immediately review the code of practice for the prevention of rockfalls and rockbursts in metalliferous mines, related mine standards and procedures to cater for more effective measures including but not ...

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.

Joy | Mining Corp.

In the late 1990’s, Joy Mining Machinery began a series of strategic acquisitions, bringing world-class brands into the Joy product family. In 1997, Longwall International (a leading line of longwall equipment) was acquired. In 2006, Stamler, the most popular feeder breaker and battery hauler equipment in the mining industry, was acquired.

Bord-and-pillar | Definition of Bord-and-pillar by Merriam ...

Bord-and-pillar definition is - of or relating to a system of coal mining in which tunnels are driven in a checkerboard pattern having massive square pillars between them …

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.