Du Plessis, J.J.L.; Belle, Bharath K.(Mine Ventilation Society of South Africa, 2002-10)
Despite the much-heralded arrival of the new millennium,
improving mine health and safety remains an enormous challenge.
Considerable progress with environmental (dust and
methane) control in South African mines has ...
Du Plessis, J.J.L.; Belle, B.K.; 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 ...
Du Plessis, J.J.L.; Belle, B.K.; 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 ...
Du Plessis, J.J.L.; Belle, Bharath K.(Mine Ventilation Society of South Africa, 1999-01)
The project was planned in two phases. The
first phase involved laboratory tests on a continuous
miner model for different ventilation and
spray systems at the newly built ventilation simulation
tunnel at the Klopperbos ...
Du Plessis, J.J.L.; Biffi, Marco; Marx, Wynand(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 ...
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 ...
Du Plessis, J.J.L.; Janse van Rensburg, L.; Jansen van Rensburg, L.P.(Mine Ventilation Society of South Africa, 2016-04)
Dust emissions from mining activities and their impact on the
surrounding environment have been and remain one of the major
environmental impacts associated with surface mining. Dust
emissions caused by the transportation ...
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 ...
Du Plessis, J.J.L.; Van Dijk, R.L.S.(Southern African Institute of Mining and Metallurgy, 2001-10)
The French research institute, INERIS, requested the assistance of
the CSIR’s Division of Mining Technology in developing further
precautionary measures against explosions in their collieries. In
response to this approach, ...
Du Plessis, J.J.L.(Southern African Institute of Mining and Metallurgy, 2015-12)
Preventing the propagation of methane or coal dust explosions through the use of active explosion-suppression
systems remains one of the most underutilised explosion controls in underground coal mines. As part of the ...
Crush pillars are used as part of the stope support in intermediate depth tabular mining stopes. Crush pillar design should ensure that the pillars crush when formed at the mining face. This behaviour of the pillars is ...
Govender, Soobramoney(University of Pretoria, 2016)
In coal mining, spontaneous combustion can occur in many areas such as stockpiles, underground workings, waste dumps, coal faces, in-pit ramps and backfill areas. Spontaneous combustion has been defined as an oxidation ...
The purpose of this research is to formulate mathematical models for assisting the management
of either a new or operating surface coal mine to assess its competitiveness relative to
other coal producers for a given market ...
Van Heerden, G.M.J.; Theron, W.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 ...
Mining is a competitive business with many players. The survival of a mine in the
business is determined by its efficiency and cost-effectiveness relative to the other
producers. Both new and operating mines should select ...
Lindeque, G.C.(Southern African Institute of Mining and Metallurgy, 2016-04)
A downward trend in tyre life on haul trucks at an open pit iron ore mine
prompted an investigation into the current tyre management strategy in
order to improve tyre life. ‘Best practice’ was compared to the current ...
Kleyn, G.; Du Plessis, J.J.L.(Southern African Institute of Mining and Metallurgy, 2016-04)
Sub-standard practices and their adverse impact on safety performance
remain a challenge in the South African gold mining industry. The purpose
of this study was to investigate the root causes of sub-standard practices
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 ...