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Structural frame analysis of an electrically powered robotic subsea dredging crawler under static loading conditionsBy A. K. Raji, M. O. Ojumu
Robotic subsea dredging crawlers are dynamically and remotely controlled vehicles that are used for deep sea mining and recovery operations. These exploration machines are released from a mother ship
Oct 3, 2023
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Flyrock in surface mining–Part 3: Shock wave, stress wave, blasthole expansionBy T. Szendrei, S. Tose
The generally accepted view in rock blasting is that the sources of energy for the fracture and movement of rock reside in the shock wave and gas action resulting from the explosion, and yet the mecha
Oct 9, 2024
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Some observations on 'ancient' mining at PhalaborwaBy C. E. More
Some observations on 'ancient' mining at Phalaborwa C. E. MORE. B.A. (Pretoria) (Visitor) A brief account is given of historical references to the Phalaborwa area, the first being to the mou
Jan 1, 1974
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Estimation of Lateritic-Type OrebodiesBy A. G. Journel, CH. Huijbregts
"Centre de Morphologie MathématiqueSpecial problems arise in the evaluation of lateritic-type orebodies (Ni-Co, bauxite) or, more generally, orebodies affected by surface weathering. In this type of o
Jan 1, 2014
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Synthesis and Crystal Structure of Tetrakis(1,3-Diphenyl-1,3-Propanedionato) Zirconium(IV)By M. Steyn
The coordination compound tetrakis(1,3-diphenyl-1,3-propanediona to)zirconium(IV), [Zr(DBM)4], (DBM = dibenzoyl methane/1,3- diphenyl-1,3-propanedionol) was synthesized and characterized by single-cry
Jan 1, 2014
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Development of Best Practice Guideline for the management of hot holes in surface coal minesBy M. Mpofu, G. Stenzel, F. Magweregwede, B. Maphalala, T. Kgarume
Surface coal operations in which mining activities are conducted above old underground workings experience hot holes after drilling. In a coal mine, hot holes are defined as shot holes, which after be
Sep 9, 2024
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Design And Development Of A Novel Thickener Feedwell Using Computational Fluid Dynamics - SynopsisBy T. V. Nguyen
The feedwell performance in gravity thickeners and clarifiers relies on the efficient mixing between solid particles and flocculant to achieve effective flocculation, as well as energy dissipation of
Jan 1, 2012
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Transformation in the South African Mining Industry – Looking Beyond the Employment Equity ScorecardBy Moraka N. V., van Rensburg M. Jansen
"SynopsisGoing beyond transformation claims contained in employment equity scorecards and industry compliance reports, this article provides qualitative insight into the initiatives employed and chall
Jan 1, 2015
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Towards an Inclusive Model to Address Unsuccessful Mine Closures in South AfricaBy E. S. van Druten, M. C. Bekker
"The complete and successful closure of a mine in the South African environment remains problematic. Closure remains an elusive mining phase due to unclear roles and responsibilities, inaccurate closu
Jan 1, 2017
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Virtual reality in improving mining ergonomicsBy P. Foster, A. Burton
Over the past decade there has been a great deal of research into the use of virtual reality (VR) and computer graphics in the mining industry. Much of this has led to developed applications including
Jan 1, 2003
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Hydraulic Fracturing Technology For Improving Permeability In Gas-Bearing Coal Seams In Underground Coal Mines ? SynopsisBy B. X. Huang
Hydraulic fracturing technology is presented as a solution to improve permeability and thus solve the extraction problem of coal seam gas in low-permeability gas-bearing coal seams. Given an existing
Jan 1, 2012
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Performance management-the total integration of a company's management systemsBy C. O. Esterhuysen, J. P. Deetlefs, C. A. Wessels
The productivity indices of the Republic of South Africa compare poorly with those of its competitors in the rest of the world. The theory of productivity is relatively simple, and various models are
Jan 1, 1989
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Environmental Feature - Columbus's Commitment To Environmentally Friendly DevelopmentA decision by joint-venture partners Anglo American, Gencor, and the Industrial Development Corporation to proceed with the expansion of the Columbus Stainless Steel plant in Middelburg will contribut
Jan 1, 1993
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Reflections on Narrow-Reef Platinum Mining Pillar Design Systems as Applied to a Large Platinum Exploration Feasibility ProjectBy J. N. Van der Merwe
"Platinum is a highly valuable resource, its safe and economic extraction is paramount. The success of platinum mining by the bord and pillar method depends heavily on a comprehensive and dependable p
Jan 1, 2017
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A Redetermination of the Structure of Tetraethylammonium Meroxidotrichlorido (thenoyltrifluoroacetyl Acetonato-K2-O,O')niobate(V)By R. Koen, H. Visser, A. Roodt
"SynopsisThe tetraethylammonium salt of the mono-anionic coordination compound mer-oxidotrichlorido(thenoyltrifluoroacetylacetonato- K2O,O’)niobate(V) (NEt4)[NbOCl3](ttfa)], has been prepared under ae
Jan 1, 2015
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A Bird's-Eye View Of Materials EngineeringBy G. T. van Rooyen
In this overview of materials engineering, the author, drawing on his long experience from his student days until the present (emeritus professorship), briefly recounts the main developments in this f
Jan 1, 1996
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Investigation of Cavity Formation in Lump Coal in the Context of Underground Coal GasificationBy C. Hsu
Underground coal gasification (UCG) is becoming more popular as the reserves of good quality, mineable coal are starting to diminish, and yet the global energy demand from coal is still increasing. Th
Jan 1, 2014
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AziSA: improving mining decisions with real- time data ? SynopsisBy D. Vogt
South African underground hard rock mines are typically managed using measurements made daily, weekly or even monthly of key parameters such as face advance, readiness to blast, blast success, tempera
Jan 1, 2009
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Improving Rockbolt Installations In US Coal Mines - SynopsisThe vast majority of the roughly 100 million rock anchors installed in mines in the USA each year use resin cartridges1. About 4.5 million of these bolts are installed using a mechanical shell in addi
Jan 1, 2011
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Short interval management system for improving mining efficiency by optimising mining processes with real time mining data APCOM 2021By J. Saunders, N. Pretorius, G. Krafft, T. P. Katakwa
Imagine being able to see all the future planned mining activities in real time. This is exactly what SIMS (Short Interval Management System) will enable you to do. SIMS is a real time short interval
Sep 1, 2021