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  • SAIMM
    Mobile hydraulic support for copper ore mines

    By K. Kotwica, P. Gospodarczyk, J. Sosnica, J. Pawlik, Z. Iwulski, K. Pawlik

    The paper presents problems resulting from the mobile mining machines functioning and requirements concerning a machine control system, which controls successive operation stages of such machines. The

    Jan 1, 2003

  • SAIMM
    Keynote Adress: Coal Competitiveness And Energy Alternatives

    By G. Broadbent

    It is an honour to be invited as a speaker to this ICCR conference and a pleasure to be with you here in South Africa. I have been asked to talk about the competitiveness of coal versus other energy a

    Jan 1, 2001

  • SAIMM
    Melting Of Platinum Group Metal Concentrates In South Africa

    By J. Nell

    An overview is given of the matte melting process used for the beneficiation of South African platinum group metal (PGM) ores. Most producers use six-electrode furnaces to melt the concentrate and Pie

    Jan 1, 2004

  • SAIMM
    Factors Affecting Silicomanganese Production Using Manganese Rich Slag In The Charge

    By A. Ahmed, A. Fathy, M. Eissa, K. El-Fawakhry, A. El-Mohammady

    Silicomanganese is widely used as a complex reducer and an alloying addition in the production of various grades of steel due to its economic and metallurgical advantages. It is also used as a semi-pr

    Jan 1, 2004

  • SAIMM
    Risk Identification, Assessment And Management In The Mining And Metallurgical Industries

    By H. Simonsen

    Risk assessment consists of a search for the answers to: ?What can happen? ?How likely it is that it can happen? ?What are the consequences if it does happen? Perhaps the most important aim

    Jan 1, 1999

  • SAIMM
    Rockbursts in the period of mining activity reduction in Ostrava-Karvina Coalfield

    By V. Velicka, J. Ptacek, R. Snuparek, P. Konecny, G. Takla

    Coal mining in Ostrava-Karvina coalfield is being accompanied by rockbursts. 82 rockbursts occurred within the period between 1990 and 2002. Natural and technological factors from these rockbursts wer

    Jan 1, 2003

  • SAIMM
    Integrated comminution and flotation neurocontrol using evolutionary reinforcement learning

    By A. v. E. Conradie, I. Nieuwoudt

    Comminution and flotation circuits are frequently perturbed by disturbances, such as feed particle size variations, ore hardness and varying mineral liberation, which can have a significant impact on

    Jan 1, 2003

  • SAIMM
    Process Performance Of Bacterial Leaching Reactors: The Contribution Of Mathematical Modelling

    Bacterial leaching represents an unusual problem in biochemical engineering, because the substrate for bacterial growth is not supplied directly, but is a product of another reaction, the leaching of

    Jan 1, 2000

  • SAIMM
    Green Topics - Mining And The Environmental Agenda

    Tracey Khanna, Assistant Editor of UK?s Mining Magazine discusses some of the new and important environmental challenges, physical and social, that are facing mining companies. The tide of public o

    Jan 1, 2000

  • SAIMM
    Getting The Balance Right ? Some Practical Design Considerations For Solvent Extraction Circuits

    By G. Laing

    On scheduled commissioning and effective operation of a solvent extraction circuit relies on getting the design of both the core contact equipment and the peripheral plant right. Experience has shown

    Jan 1, 2002

  • SAIMM
    The Effect Of Underground Mine Water On Performance Of The Mufulira Flotation Process

    By D. E. Ng?andu

    The experience of Mufulira concentrator, of the Zambia Consolidated Copper Mines Limited, with underground mine drainage water, which is used in milling operations is discussed. It is shown that the u

    Jan 1, 2001

  • SAIMM
    Estimation Of Optimum Specific Energy Based On Rock Properties For Assessment Of Roadheader Performance

    By C. Balci

    Specific energy is defined as the amount of work required to break a unit volume of rock and is used to predict the performance of mechanical miners. It is obtained from full-scale rock cutting experi

    Jan 1, 2004

  • SAIMM
    A Statistical Determination Of Methane Emission From Coalbeds - Case Study

    By S. Sarac

    In this study, a statistical model is suggested in order to determine the methane emission from a working seam. In the proposed method, methane concentrations which are systematically measured in retu

    Jan 1, 2003

  • SAIMM
    Development Of Best Practice Guidelines For Water Quality Management In The South African Mining Industry - Background

    By W. Pulles

    Mining can adversely affect water quality and poses a significant risk to South Africa?s water resources. Proactive management of environmental impacts is required from the outset of mining activities

    Jan 1, 1999

  • SAIMM
    Improved Variography Using Simulated Annealing to Adjust Sample Locations to Align With Diamondiferous Linear Beach Structures

    At Namdeb, submerged beaches are earmarked for sampling and future mining and various sampling configurations are tested for optimality through the use of spatial simulations. For the creation of thes

    Jan 1, 2014

  • SAIMM
    Comparative study on the stability analysis methods for underground pumped powerhouse caverns in Korea

    By H. -U. Lim, C. -H. Kim

    The sixth underground pumped powerhouse cavern is under construction now in Korea. For the stability analysis of the five underground powerhouses, finite element method was used. For this analysis, in

    Jan 1, 2003

  • SAIMM
    A Review Of The Sequential Grid Mining Method Employed At Elandsrand Gold Mine

    By M. F. Handley

    Sequential grid mining has been employed as the primary mining strategy at the AngloGold West Wits Elandsrand Mine since the inception of stoping operations from the sub-vertical shaft system in 1988.

    Jan 1, 2000

  • SAIMM
    A quantitative evaluation of the load bearing capacity of ground and characteristic curves of tunneling

    By T. Nishimura, H. Kiyama, K. Wakimoto

    Discussion on the load bearing capacity of ground and the stability of tunnel is presented. We derive a simplified solution of a circular lined-tunnel in an elastic ground. The solution results in a b

    Jan 1, 2003

  • SAIMM
    Basic Principles For Stable Gullies In The Gold And Platinum Mines Of South Africa

    Gullies are the vital in-stope excavations that provide access for mining personnel and material to, and mined ore from, the producing faces in the tabular hard rock mines. They pose a serious proble

    Jan 1, 2002

  • SAIMM
    The Truths And Myths Of Freeze Lining Technology For Submerged Arc Furnaces

    By P. L. Duncanson, J. D. Toth

    Since 1995, when "freeze lining" refractory systems were introduced to the ferroalloy industry, they have gained in popularity, due to the freeze lining?s reputation for reliability, safety, and the c

    Jan 1, 2004