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Strength, Deformability, and Micromechanics of Brittle Fracture in a Crystalline Rock Under True Triaxial Compressive Stresses
By B. Haimson
A new loading apparatus was fabricated and used to conduct true-triaxial compression tests on KTB amphibolite, a crystalline basement rock. Tests in dry jacketed samples reveal that the intermediate p
Jan 1, 2003
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An effective face support system to minimize rockfalls - Synopsis
By N. D. L. Burger
An effective prototype face support system to minimize rockfalls in rockfall-prone mines was developed and patented during a project sponsored by the Mine Health and Safety Council (MHSC). An experime
Jan 1, 2008
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Design of Merensky Reef Crush Pillars
By B. P. Watson
The Bushveld platinum group metal deposits are two distinct, shallow-dipping stratiform tabular orebodies which strike for many hundreds of kilometres. Mining is extensive, with depths ranging from cl
Jan 1, 2010
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Sampling mineral commodities?the good, the bad, and the ugly - Synopsis
A wide range of drill holes and process streams are sampled for resource estimation, grade control, and contractual purposes in the minerals industry. However, despite the availability of training cou
Jan 1, 2010
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Beneficiation of Marble From Griekwastad, Northern Cape Province
By N. P. Mahumapelo
This paper is based on a study to determine the potential beneficiation opportunities for marble from Griekwastad in the Northern Cape Province. The marble was characterized mineralogically by X-ray
Jan 1, 2014
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Low-Cement Chrome-Oxide-Free Castable For Use In Ironmaking Rotary Kilns
By D. Tsweleng
In the Evraz Highveld production process, iron ore is prereduced in rotary kilns prior to charging into submerged arc furnaces (SAFs). Owing to the highly aggressive slags that are formed within the c
Aug 1, 2013
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Increasing efficiency of conveyor belt transporting system 4 Belt Lonmin - Synopsis
By G. G. le Roux
The purpose of the investigation was to assess various options for increasing the efficiency of the conveyor belt transporting system used at 4 Belt Shaft at Lonmin?s Marikana operations. The reason f
Jan 1, 2008
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A Mining Perspective on the Potential of Renewable Electricity Sources For Operations in South Africa Part I—The Research Approach and Internal Evaluation Process
By R. G. Votteler, A. C. Brent
"The business performance of mining corporations in South Africa is adversely affected by the constantly increasing electricity costs. The most commonly used power sources are the national utility sup
Jan 1, 2017
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Needs Analysis for Capacity Building of Artisanal Miners in Central Africa
By Steven M. Rupprecht
"The artisanal mining sector in Central Africa is largely informal, yet provides an essential livelihood for many (directly or indirectly) participants, as well as facilitating an important source for
Jan 1, 2015
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The Effect Of Electrolyte Additives On Cathode Surface Quality During Copper Electrorefining - Synopsis
By T. A. Muhlare
The use of electrolyte additives to smoothen cathode deposits during copper deposition is practised worldwide. These additives absorb on the cathode surface and take part in the electrochemical crysta
Jan 1, 2011
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The 4TH Wave: Culture-Based Behavioural Safety
By L. Bloch
Most mine safety initiatives in South Africa are doomed to limited success because of one simple fact: they are a-historical and un-cultural and do not deal with the serious ?legacy issues? that still
Jan 1, 2012
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Crud ForxTM - A New Approach to Crud Management
By Sergio Burelli, Darren C. Megaw
"Operational challenges associated with solvent extraction (SX) plants include the effective on-line management of solids introduced from a variety of process streams. Solids are carried over from lea
Jan 1, 2015
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End-Of-Life Mode Of Failure Of A Zinc Sulphide Concentrate Fluidised Bed Roaster And Its Rebuilding
By N M. Vegter, C B. Kohler, E H. O Meyer
Zincor operates four Lurgi fluidised-bed roasters at its roast-leach-electrowin refinery in Springs, South Africa. In 2006, Zincor?s four roasters had reached ages ranging between 26 and 38 years, whi
Jan 1, 2007
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Classification of Roof Strata and Calculation of Powered Support Loads in Shallow Coal Seams of China
By G. Song
"SynopsisAccording to the overlying rock strength and thickness of 10 shallow coal seams in China, the strata are classified into four types: weak and laminated strata (hereinafter referred to as WL),
Jan 1, 2015
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An initial assessment of the closely spaced dip-pillar mining layout as practised at Driefontein Gold Mine
By J. W. Klokow, K. L. Riemer, R. I. L. Ferreira
As a result of the increased depth of mining in the South African gold mining industry mining induced seismicity is a severe problem. One of the strategies within the industry to contain the problem i
Jan 1, 2003
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Chromite?A Cost-Effective Refractory Raw Material For Refractories In Various Metallurgical Applications
By N. McEwan
Keywords: refractories, chromite, Marico This paper examines the role of refractory-grade chromite in refractories. The chromite deposit at Verref?s Marico Chrome mine is described. The refractory
Jan 1, 2011
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Application Of Openrisk At Open Cast Coal Mines
By L. Munsamy, B. J. Madden
OpenRisk, an open cast risk rating system, takes into account relative differences in the importance of hazards, as experienced on each mine as a result of different combinations of geotechnical facto
Jan 1, 2006
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Characterisation studies of Tectonised Clay shales and implications in the excavation of large size tunnels
By Marco Barla, Mariacristina Bonini, Giovanni Barla
ABSTRACT: The paper describes the characterisation studies of Tectonised Clay Shales at laboratory and in situ scale. The interest relates to tunnelling under squeezing and swelling conditions, in Ita
Jan 1, 2003
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Our Mineral Heritage - Presidential Address
By P. W. J. van Rensburg
Our mineral heritage - PRESIDENTIAL ADDRESS given by P. W. J. van Rensburg, Pr. Eng.. B.Sc. (Eng.)(Rand) INTRODUCTION Stone Age people were living in various parts of South Africa as recent,ly as a th
Jan 10, 1973
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Interaction Of Mgo-Mgr2o4(R: Al, Cr, Fe) Refractories With SO2-Containing Gases
By N. Z. Fotoyi
Keywords: MgO-MgR2O3 refractory, SO2-containing gases, chemical attack The reaction mechanisms occurring when MgO-MgR2O3 refractories are exposed to SO2-containing gas atmospheres were examined. T
Jan 1, 2011