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Providing Value through Automation in the Mineral Processing Industry (9f2f5a3b-8906-47ff-94dc-f8bf875d5560)
By R. E. Cook
"Mineral deposits require substantial amounts of energy to transport and be processed into usable form and, as such, present a real processing challenge in that the deposits are never homogeneous and
Jan 1, 2015
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Managing Technology Risk
By Chris Twigge-Molecey, John Peacey
To meet the business objectives of a metallurgical project, there is often a need for new and untried technology or equipment, whose very novelty can present serious risks to meeting those objectives.
Jan 1, 2015
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Tough choices facing the South African mining industry
By W. van Antwerpen, J. Guzek, A. Lane
Strategy is about making choices. Mining companies choose to do certain things and not to do other things. Mining is a long-term business, and the choices made typically have large investments attache
Jan 1, 2015
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The Science of Empirical Design in Mining Rock Mechanics
By Christopher Mark
"Many problems in rock mechanics are limited by our imperfect knowledge of the material properties and failure mechanics of rock masses. Mining problems are somewhat unique, however, in that plenty of
Jan 1, 2015
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Numerical Modelling of Fold-Related Fractures
By Mohamed Sassi, I. Kolo, R. L. Sousa, R. K. Abu Al-Rub, Manhal Sirat
"Fractures induced by folds are pivotal in hydrocarbon exploration, ground water transport and harnessing of geothermal energy. This is because of the need to predict and understand fracture propagati
Jan 1, 2015
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From Liability to Valuable Resource - Water in the Mining Industry
By A. Makinen
There is an increasing trend between increasing consumption of water and the production of metal concentrate. Along with this trend we see that ore grades are declining and getting more complex to con
Jan 1, 2015
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Feasibility study of electricity generation from discard coal
By A. Engelbrecht, B. North, B. Oboirien
"There is large electricity generation potential in discard coal, both in stockpiles and current arisings. Power stations with a combined capacity of up to 18 GW electrical (GWe) could be fuelled by d
Jan 1, 2015
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Evergreen Line Rapid Transit Project: Analysis and Design of Deep Soil Mix Panels to Mitigate Seismic Lateral Spreading
By E. Naesgaard, Brian E. Hall, A. Amini, Advanced Geosolutions, A. Azizian
"A 2 km section of the Evergreen Line Rapid Transit Project is supported on improved ground consisting of cement deep soil mix (CDSM) panels because of highly variable and challenging soil conditions,
Jan 1, 2015
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Experimental Study on the Damage and Failure Properties of Rock-Like Material with Pre-Existing Double Flaws under Uniaxial Compression
By Chunfeng Zhao, Chong Bao, Cheng Zhao, Jiashen Tian, Matsuda Hiroshi
"Based on digital image correlation (DIC) method and self-developed code, the global strain field changing and failure properties of rock-like materials with pre-existing double flaws are experimental
Jan 1, 2015
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Direct Cyanidation and Roasting Combination of a Semi-Refractory Massive Sulfide Ore
By P. Karimi, A. Akcil, A. Amini, H. Abdollahi
"In this study, cyanidation experiments were carried out on a massive sulfide ore sample, whose grades of the precious metals gold and silver were found to be 4.2 g/t and 311.9 g/t, respectively. Othe
Jan 1, 2015
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In-Mine Measurements and Analysis of Ground Movements while Crossing a Geologic Fault Using a Longwall Mining Method
By Joseph Hirschi, Behrooz Abbasi, Harrold Gurley, Yoginder P. Chugh
"The research goal was to assess if analytical tool/s can be developed to quantify displacements around a geological fault as longwall face moves toward it and past it. A company was faced with crossi
Jan 1, 2015
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Going Green with Mobile Mining Equipment (6ff433b9-54e4-4ebc-90fb-8f4714515264)
By J. Gibson
"INTRODUCTION As one of the most pressing and important political debates of this century, climate change has captured global attention and is forcing governments to take action towards decreasing GHG
Jan 1, 2015
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Long-Term Performance of a Deep Mixed Column-Wall at Arabianranta Area (Helsinki, Finland)
By Leena Korkiala-Tanttu, Ilkka Vähäaho, Juha Forsman, Paavo Lahdenperä, Kalle Rantala, Osmo Korhonen
"District of Arabianranta (Helsinki, Finland) has been founded on an old seabed, which was filled with miscellaneous soil materials. The subsoil consists of very low shear strength clays and organic c
Jan 1, 2015
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Effect of Porosity on the Tensile Properties of Die Cast Aluminium A360
By Gheorghe Marin, Franco Chiesa, David Levasseur, Bernard Duchesne
Over the past 20 years, pressure die casting has evolved to a point where structural parts can now be produced by this process. This has been made possible by the development of vacuum die casting and
Jan 1, 2015
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Investigating Reinforcing Effects of Soil-Cement Columns in Liquefiable Sand Using Dynamic Centrifuge Tests
By C. Guney Olgun, Mohammad Khosravi, Daniel W. Wilson, Deepak Rayamajhi, Scott A. Ashford, Shuji Tamura, Ross W. Boulanger
"Dynamic centrifuge tests were performed on unimproved and improved soil with soil-cement column models. The reinforcing effect of isolated soil-cement columns for reducing liquefaction potential and
Jan 1, 2015
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Experience of the Oxygen Bottom-Blown Converter in Posco
By C. S. Ha, H. S. Choi, D. Y. Shin
POSCO installed a new 100 ton oxygen bottom-blown converter in 2013 for the development of new steelmaking process named as PS-BOP which is reading POSCO-Saarstahl Basic Oxygen Process. This process w
Jan 1, 2015
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Fluorine: A Key Enabling Element in the Nuclear Fuel Cycle
By P. L. Crouse
"SynopsisFluorine – in the form of hydrofluoric acid, anhydrous hydrogen fluoride, elemental gaseous fluorine, fluoropolymers, volatile inorganic fluorides, and more – has played, and still plays, a m
Jan 1, 2015
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Construction of Long Deep Mixing Columns by Low-Height Rig
By Shigenori Horikawa, Nobutaka Tanaka, Toshiro Hara, Kengo Yamamoto
"The CDM-LODIC method(Low Displacement and Control method), a modified the CDM(Cement Deep Mixing) method, reduces the ground displacement through the removal of in-situ soil equivalent to the amount
Jan 1, 2015
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Instrumented Pile Load Tests on ACIP Piles for a Real Estate Project in Kolkata-A-Case Study
By Krishnendu Mandal
"For a multi-story building project in Kolkata, a pile load testing program was conducted to minimize pile performance uncertainty resulting from variable subsurface conditions and to verify the pile
Jan 1, 2015
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Onkalo – Underground Rock Characterization Facility for In-Situ Testing for Nuclear Waste Disposal
By E. Johansson, T. Siren, K. Kemppainen
"As part of the preparations for the design of an underground repository for radioactive waste at Posiva’s Olkiluoto site on the west coast of Finland, there has been considerable site investigation w
Jan 1, 2015