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Applications Of Fibre-Reinforced Shotcrete (Fibrecrete) Support In Difts At Nchanga Underground Mine
By S. Mundike
A scraper-based block cave method has been successfully applied to extract the Lower orebody at Nchanga since the 1950s. Since inception, scraper drifts and service ways have been supported using stee
Jan 1, 2005
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Rockpass Overview And Risk Assessment Within The AngloGold Ashanti SA Region
Ongoing rockpass problems on mines within the South Africa region, prompted AngloGold Ashanti to embark on a risk assessment of major rockpasses. This commenced with the collection of relevant data to
Jan 1, 2005
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Something for nothing?—An unconventional approach to extracting three-dimensional grade information from two-dimensional estimation of thin, tabular reef deposits
This paper presents an initial investigation into the viability of co-kriging the grades of multiple mining cuts in a two dimensional, thin reef scenario. Deposits with gradational mineralized zones,
Jan 1, 2003
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Tunnel Surface Support - Capacities Of Various Types Of Wire Mesh And Shotcrete Under Dynamic Loading
The paper deals with the results of dynamic tests carried out on a range of surface support liners consisting of combinations of mesh (various types), shotcrete, and wire rope lacing. The testing was
Jan 1, 2001
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Microwave Heating Principles And The Application To The Regeneration Of Granular Activated Carbon
By S. M. Bradshaw
The principles of microwave heating are discussed with reference to dielectric properties, heating phenomena and microwave equipment. Microwave regeneration of granular activated carbon for the carbon
Jan 1, 1998
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Evaluation Of Three Rock Breaker Layouts For Mechanized Block Cave Mining
By J. B. Oosthuizen
Mechanical rock breakers are used in block caving operations to reduce the size of ore fragments which are too large to pass through grizzlys at the load-haul-dumper tipping points. Several layouts of
Jan 1, 1997
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Sawability Prediction Of Carbonate Rocks From Brittleness Indexes
By O. Gunaydin
Performance measurements of large-diameter circular saws were conducted on eight different carbonate rocks in marble factories located in some areas of Turkey. Rock samples were collected from these f
Jan 1, 2004
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Separation Of Nickel And Cobalt From Calcium, Magnesium And Manganese By Solvent Extraction With Synergistic Mixtures Of Carboxylic Acids
By A. C. du Preez
The separation of nickel and cobalt from calcium, magnesium and manganese by solvent extraction using synergistic mixtures of carboxylic acids was studied. Addition of certain viable synergists to com
Jan 1, 2004
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Fundamentals of freeze lining behaviour in ilmenite smelting
Changes in reductant and energy inputs which are required to adjust the slag composition in anilmenite smelter to a higher or lower FeO content are calculated. The calculated changes are based on the
Jan 1, 2003
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Mining Industry Directors In The Firing Line - The Impact Of The Mineral And Petroleum Resources Development Act 28 Of 2002 On Mining Companies? Liability Insurance - Introduction
By N. Kornelius
In recent years there has been an increased focus on corporate governance matters worldwide. The duties and responsibilities of directors of companies have come under close scrutiny, with shareholders
Jan 1, 2003
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The Evaluation Of Rock Brittleness Concept On Rotary Blast Hole Drills
By R. Altindag
The rock brittleness is one of the most important rock properties that affect the drill-ability of rocks. It is supposed that the increase in rock brittleness causes the increase in penetration rate.
Jan 1, 2002
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Survey And Geotechnical Slope Monitoring Considerations
By F. T. Cawood
Monitoring of the slopes of surface mines can prevent loss of life, loss of equipment, loss of production and possibly the loss of the mine. The effectiveness of such monitoring depends on the extent
Jan 1, 2006
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Characterization Of Coal Mine Panels In Bord And Pillar Workings In Respect Of Their Proneness To Spontaneous Heating - A Prediction Model
By T. R. Roy
A prediction model, developed by Central Mining Research Institute (India) for evaluation of fire risk rating of underground coal mine panels in bord and pillar working in respect of their proneness t
Jan 1, 2003
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Comment On G.J. De Korte?s ?Dense-Medium Beneficiation Of Fine Coal Revisited? - SAIMM Journal, Vol. 102, No. 7. October 2002
By P. J. van der Walt
Some 30 years ago exposure to dense-medium separation in South Africa, culminated in the adaptation of the process for the treatment of -0.5 mm fines. The first commercial plant at Greenside Colliery
Jan 1, 2003
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The Development Of An Agglomerate Through The Use Of FeMn Waste
By K. P. Davey
In 1998 an initial objective was given to the author, to process valuable off grade High Carbon Ferro Manganese (FeMn) metal fines profitably. The previous attempts that had been made to re-melt these
Jan 1, 2004
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Planning Of Open Pit Mines On A Risk Basis
This paper addresses the methodology of introducing risk into the development of mine plans for open pit mines. Recommendations are put forward for achieving a risk balance between mineral resource es
Jan 1, 1997
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Problem Of Non-Normality In Statistical Quality Control: A Case Study In A Surface Mine
By B. Samanta
A quality characteristic analysed through construction of the Shewhart control chart is required to be normally distributed. In mining applications, this assumption is often violated as many quality c
Jan 1, 2004
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Incorporating BEE Into The New Mineral Law Framework For The South African Mining Industry
By S. V. Rungan
Since 1994, South Africa has been the subject of international attention, especially in regard to its transformation initiatives, which aim to redress the post-apartheid imbalances. Mining, as a major
Jan 1, 2005
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Key Results Of The Initial Environmental Risk Assessment For Chromium III Compounds And Chromium Metal
By E. Pezennec
A voluntary comprehensive environmental Risk Assessment was launched at the end of 2004 by the International Chromium Development Association. The completion is scheduled for mid 2006.EURAS, a leading
Jan 1, 2007
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The South African Legislative Framework For Mine Closure
By E. Swart
The purpose of this paper is to provide an overview of the current legislative framework for mine closure within South Africa as well as the new requirements in terms of the Mineral and Petroleum Reso
Jan 1, 2003