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Browsing Mining Engineering by Issue Date
Now showing items 41-60 of 127
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(Southern African Institute of Mining and Metallurgy, 2011-12)The ability of an explosive to break rock is influenced considerably by the extent of confinement in the blasthole. It is believed that confinement is improved by the use of adequate stemming. The aim of this paper is to ...
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(Southern African Institute of Mining and Metallurgy, 2012-04)The utilization of centralized blasting systems is progressively becoming a feature of the South African mining industry, owing to increased pressure from the Department of Mineral Resources (DMR) to ensure safer blasting ...
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(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 ...
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(Southern African Institute of Mining and Metallurgy, 2012-04)Anglo American Platinum’s Khomanani 2 shaft changed over from down-dip mining to breast mining in 2004. The changeover was made to ensure that production targets were met, as it was said that predevelopment for down-dip ...
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(Taylor & Francis, 2012-06)There is mounting evidence to show that engineers need more than technical skills to succeed in industry. In this paper we describe a curriculum innovation in which so-called “soft” skills, specifically inter-personal ...
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(Southern African Institute of Mining and Metallurgy, 2012-08)It has been established that significant time-dependent stope convergence may occur over time periods of hours and days in certain hard-rock gold and platinum mines. The source of this time-dependent behaviour appears ...
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(University of Pretoria, 2012-10-04)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 energy ...
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(Journal of Contemporary Management, 2013)This paper compares the organisational strategic drivers of a South African mining house with those of industries abroad. It furthermore compares the key competencies or capabilities of the mining house with those of the ...
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(University of Pretoria, 2013)This study investigated different underground bulk air heat exchanger (>100 m3/s) design criteria. It was found that no single document exist covering these heat exchangers and therefore the need was identified to generate ...
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(University of Pretoria, 2013)Scattered mining was practised on Kusasalethu Mine (previously Elandsrand Gold Mine) prior to 1998, but as mining proceeded deeper, it was no longer a feasible option. The scattered mining method would have resulted in ...
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(Southern African Institute of Mining and Metallurgy, 2013-04)Following the blasting fatality on 17 December 2009, Landau Colliery was forced to change from the blasting practices that had been utilized since the start-up of the mine. Since then, attempts have been made to optimize ...
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(Southern African Institute of Mining and Metallurgy, 2013-04)Compressed air is widely used on South African gold mines. However, due to recent and proposed future electricity tariff increases it is quickly becoming too expensive to produce and use. Boxfront chute systems at ore ...
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(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 ...
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(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 ...
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(Southern African Institute of Mining and Metallurgy, 2014)Methane explosions in underground coal mines are a major concern across the mining industry. After the Pike River disaster, Arnot Coal became even more aware of the explosion risk. To determine whether Arnot has adequate ...
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(University of Pretoria, 2014)This document describes the re-engineering principles applied in the design of a personnel transportation system for a platinum mine in the Rustenburg area of South Africa. It incorporates conveyor belt travelling, chairlift ...
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(University of Pretoria, 2014-01)Mining is a hugely expensive process and unlike manufacturing is based on an ever diminishing resource. It requires a continuous infusion of capital to sustain production. A myriad of factors, from the volatility of the ...
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(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 ...
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(Southern African Institute of Mining and Metallurgy, 2014-12)Since the dawn of mining, pillars have been used as primary support to ensure stable workings. Early designs were based on trial and error, after which more scientific means developed over time. A vast amount of progress ...
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(Southern African Institute of Mining and Metallurgy, 2014-12)Escalating energy and electricity costs have become one of the largest drivers of expenditure in mining operations. Over the last eight years, energy costs have tripled when expressed as a percentage of total expenses in ...
Now showing items 41-60 of 127