Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SAIMM
    Critical investigation into the problems surrounding pillar holing operations

    By L. Mpolokeng, J. P. Labuschagne, H. Yilmaz

    "An investigation into pillar cutting was carried out at a platinum mine on the western limb of the Bushveld Complex. The focus was on crush pillar design and implementation in order to ultimately imp

    Jan 1, 2015

  • SAIMM
    A validation study of the King stratification model

    By M. Bwalya, L. Mabokela, L. C. Woollacott

    This paper presents a study on the ability of the King stratification modelto describe density stratification patterns that are achieved under idealizedconditions. Tests were conducted in a batch jig

    Jan 1, 2015

  • SAIMM
    An Integrated Risk Management Approach For Underground Coal Pillar Extraction In South Africa

    Analysis for pillar extraction potential (A-PEP) is an intelligent tool, which could be used as a preliminary output indicator when considering the secondary extraction of regional support pillars in

    Jan 1, 2005

  • SAIMM
    Technology Comparison Of CFB Versus Pulverized Fuel Firing For Utility Power Generation ? Synopsis

    By J. Utt

    Recent developments in circulating fluidized bed (CFB) once-through supercritical technology (OTSC) have enabled this technology to be offered as a utility-scale alternative competing head-to-head wit

    Jan 1, 2012

  • SAIMM
    Towards Sustainability In Ferroalloy Production ? Synopsis

    By L. Holappa

    Ferroalloy production is an energy-intensive industrial sector with significant CO2 emissions. In this paper the current situation in ferroalloy processes is discussed from the standpoint of global en

    Jan 1, 2010

  • SAIMM
    Importance of failure mechanisms for management of surface instability risk above abandones mines

    By J. P. Josien, Didier C.

    ABSTRACT: France now faces the closure of most of its mining sites. Surface instability risk may sometimes remain, especially where large underground voids exist. This paper illustrates the importance

    Jan 1, 2003

  • SAIMM
    Predicting the probability of Iron-Rich Ultramafic Pegmatite (IRUP) in the Merensky Reef at Lonmin’s Karee Mine

    By D. Hoffmann, S. Plumb

    IRUP is an iron-rich ultramafic pegmatite rock that formed due to hot ironrich fluids and gases replacing local stratigraphic zones of the Bushveld Complex. This study focuses on the estimation of the

    Jan 1, 2015

  • SAIMM
    Thermal Effects On Carbon Based Electrodes Close To A High Current Electric Arc

    By J. A. Bakken, M. T. Jonsson, G. A. Saevarsdottir, H. Palsson

    The electrodes of a Submerged Arc Furnaces carry a high current and are subject to enormous stresses caused by both the electric arc itself, and the current distribution within the electrode. The exte

    Jan 1, 2007

  • SAIMM
    What boundary conditions should we apply? Applications to tunneling and to the AECL Underground Research Laboratory

    By B. Amadei, F. Tonon

    Rock stress measurement is cast in the more general context of the determination of boundary conditions for rock engineering. A study on the effect of elastic anisotropy on underground excavations rev

    Jan 1, 2003

  • SAIMM
    Extending Empirical Evidence Through Numerical Modelling in Rock Engineering Design

    Models are used in engineering to reproduce reality as faithfully as possible so that the expected response of a system for given actions or inputs can be determined. In the field of rock engineering,

    Jan 1, 2014

  • SAIMM
    Developing Green Energy Projects in Southern Africa?A Mining Investment Approach

    By M. Seeger

    The demographics and the growing numbers of people provide a strong signal that the demand for electrical power in Southern Africa will grow considerably over the foreseeable future. Without a steady

    Jan 1, 2010

  • SAIMM
    The use of indirect distributions of selective mining units for assessment of recoverable mineral resources designed for mine planning at Gold Fields’ Tarkwa Mine, Ghana

    By J. Searra, M. Aboagye

    "For new mining projects or for medium- to long-term areas of existing mines, drilling data is invariably on a relatively large grid. Direct estimates for selective mining units (SMUs), and also for m

    Jan 1, 2015

  • SAIMM
    Mining through areas affected by abnormal stress conditions at Syferfonte in Colliery

    By C. Legote

    "This paper investigates the conditions leading to the indefinite termination of production in four critical primary panels at an underground coal mining operation, the observed shortcomings in the mi

    Jan 1, 2015

  • SAIMM
    The Influence of Niobium Content on Austenite Grain Growth in Microalloyed Steels

    By C. W. Siyasiya, K. A. Annan, W. E. Stumpf

    "SynopsisThe relationship between niobium content and austenite grain growth has been investigated through hot rolling simulation on a Bähr dilatometer. The effect of delay time between passes during

    Jan 1, 2015

  • SAIMM
    Plan compliance process for underground coal mines - Synopsis

    By A. A. Angelov

    This paper presents a unique method of monitoring the effectiveness of the planning process as well as the execution of mine plans. The method primarily determines the degree of deviation from the ori

    Jan 1, 2010

  • SAIMM
    Pyrite roasting, an alternative to sulphur burning - Synopsis

    The roasting of sulphide ores and concentrates is often the first step in the production of metals or chemicals. In many processes, the production of sulphuric acid is viewed as a by-product, whereas

    Jan 1, 2009

  • SAIMM
    Thermophysical properties of rocks from the Bushveld Complex

    By M. Q. W. Jones

    This paper presents a compilation of physical properties of rocks from the Bushveld Complex. The database consists of more than 900 measurements each of thermal conductivity and density. The data are

    Jan 1, 2015

  • SAIMM
    Reduction Behaviour Of The Akanvaara Chromites Of Northern Finland

    By J. Härkki, R. Hiltunen

    The Akanvaara intrusion (surface area 50-55 km2) in Savukoski, Northern Finland, hosts 23 distinct monocumulate layers of small euhedral chromite crystals enclosed in a silicate matrix. These chromiti

    Jan 1, 2004

  • SAIMM
    Peak particle velocity prediction using support vector machines: a surface blasting case study

    By S. R. Dindarloo

    Although blasting is one of the most widely used methods for rock fragmentation, it has a major disadvantage in that it causes adjacent ground vibrations. Excessive ground vibrations can cause a wide

    Jan 1, 2015

  • SAIMM
    Practices And Initiatives To Transfer Simrac Developed Technologies To Its Stakeholders And Other Parties

    By P. van der Heever

    The genesis of Simrac?s technology transfer practices and future initiatives are discussed in this report. Simrac produces a relatively large volume of research-based health and safety outputs that mu

    Jan 1, 2002