Browsing Research Articles (Mining Engineering) by Title

Browsing Research Articles (Mining Engineering) by Title

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  • Ngwenyama, P.L. (Philani); De Graaf, W.W. (Wolter); Preis, E.P. (Eugene) (Southern African Institute of Mining and Metallurgy, 2017-03)
    The depletion of coal reserves in the Witbank coalfield in Mpumalanga Province has resulted in mining companies exploring the possibilities of extracting coal pillars. These are pillars that were left behind for hangingwall ...
  • Theron, W.J.; Van Heerden, G.M.J. (Southern African Institute of Mining and Metallurgy, 2011)
    The purpose of the paper is to give an introduction to the concept of fatigue and its causes in the mining industry. By knowing the fundamental role it plays, together with its dynamics, can positively contribute to ...
  • Belle, B.K.; Du Plessis, J.J.L.; Oberholzer, J.W. (Mine Ventilation Society of South Africa, 2000-01)
    After initial studies by the CSIR indicating that a discrepancy exists in the dust concentration results between gravimetric dust samplers, alternative instruments or methods were sought. In the study that followed; it ...
  • Biffi, Marco; Marx, Wynand; Du Plessis, J.J.L. (Mine Ventilation Society of South Africa, 2006-10)
    The FutureMine Collaborative Research Initiative has been successfully completed after three years of activity. The main objective of this initiative was to provide applications of research previously undertaken in ...
  • Belle, B.K.; Du Plessis, J.J.L.; Van Zyl, F.J. (Mine Ventilation Society of South Africa, 2000-04)
    The changing and stricter regulatory environment has caused the mining industries in South Africa to re-look at their individual mine health and safety departments. In 1997, after the report of the Leon Commission of ...
  • Webber-Youngman, R.C.W.; Van Wyk, E.A. (Southern African Institute of Mining and Metallurgy, 2013-06)
    The mining industry in South Africa faces real challenges with regard to the reduction of safety-related incidents. The purpose of this paper is to highlight the need for alternative interventions in addition to other ...
  • Mashinini, N.F. (Southern African Institute of Mining and Metallurgy, 2008-04)
    No abstract available
  • Gomes-Sebastiao, G.L.; De Graaf, W.W. (Wolter) (Southern African Institute of Mining and Metallurgy, 2017-04)
    Gomes Sand is a quarry operation that produces sand and aggregate for the construction industry. The quarry is experiencing inconsistencies in the fragmentation and poor pit conditions as a result of poor drilling ...
  • Lehasa, S. (Southern African Institute of Mining and Metallurgy, 2012-04)
    The purpose of the project was to investigate the challenges faced by Khutala Colliery pertaining to underground road construction and maintenance. Furthermore the influence of these challenges on productivity and safety ...
  • Aydan, Omer; Ito, Takashi; Ozbay, Ugur; Kwasniewski, M.; Shariar, K.; Okuno, T.; Ozgenoglu, A.; Malan, D.F. (Daniel Francois); Okada, T. (Springer, 2014-01)
    It is important to note that creep is only one aspect of the time-dependent behavior of rocks. In Fig. 1, three cases are illustrated with respect to the complete stress–strain curve: creep, i.e., increasing strain when ...
  • Malan, D.F. (Daniel Francois); Napier, J.A.L. (John) (Elsevier, 2018-09-03)
    This paper explores possible synergies between techniques used to minimise seismicity in deep South African gold mines and their applicability to control coal bumps. The paper gives a summary of the techniques used in ...
  • Du Toit, J.; Cromarty, Robert Douglas; Garbers-Craig, Andrie Mariana (Southern African Institute of Mining and Metallurgy, 2016-04)
    Penetration of matte into tap-hole bricks causes detrimental refractory wear, which can lead to furnace breakouts. The ability of the tap-hole clay to form a protective layer on the brick, thereby limiting matte ...
  • Du Plessis, J.J.L.; Potgieter, S.A.J. (Mine Ventilation Society of South Africa, 2016-07)
    Spotters and samplers working around surface drill rigs can be exposed to high dust concentrations. In this study it was found that individuals were exposed to as much as 14.2 mg/m3, which exceeds the Occupational ...
  • Legote, C. (Southern African Institute of Mining and Metallurgy, 2015-04)
    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 mining approach, and ...
  • Budeba, M.D.; Joubert, Johannes Willem; Webber-Youngman, R.C.W. (Southern African Institute of Mining and Metallurgy, 2015-12)
    Determining the efficiency of a surface coal mine operation is an essential activity, which can help in deciding on the optimal use of input resources, including effective capital allocation, in generating a desired ...
  • Huisamen, Altus; Wolkersdorfer, Christian (Elsevier, 2016-07)
    A method for the geochemical modelling of transient contaminant release from rehabilitated opencast coal mines, including calibration against existing data, is proposed. The need for such a methodology is illustrated by a ...
  • Du Plessis, J.J.L.; Scott, D.; Moorcroft, H.E.S. (Mine Ventilation Society of South Africa, 2006-07)
    The increasing mining depths of South African gold mine deposits are resulting in ever-increasing heat loads associated with depth and the geothermal gradient. Together with changes in the mining horizons brought about ...
  • Napier, J.A.L. (John); Malan, D.F. (Daniel Francois) (Southern African Institute of Mining and Metallurgy, 2011-12)
    A number of issues relating to the computational aspects of pillar design are addressed in this paper. The computation of average pillar stress values is important when attempting to establish criteria for pillar design ...
  • Pasch, O.; Uludag, S. (Southern African Institute of Mining and Metallurgy, 2018-05)
    The current coal mining climate is characterized by coal price volatility, political instability, high labour costs, and increasing operational costs. This is exacerbated by a steady decline in the growth of global coal ...
  • Kempson, William James; Webber-Youngman, R.C.W.; Meyer, Josua P. (Southern African Institute of Mining and Metallurgy, 2013-12)
    As a result of the rising electrical energy costs in South Africa, a method was sought to reduce the overall electrical consumption of typical shaft systems. A typical shaft configuration was analysed and the primary ...