Engineering & Mining Journal

APR 2019

Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr

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APRIL 2019 • E&MJ 1 www.e-mj.com APRIL 2019 • VOL 220 • NUMBER 4 FEATURES Designing Leach Pads for the Longview Experts say studies conducted early should give insight that can be used throughout the life of the system ................................................................... 28 Shrinking the Waste Line Producers and service providers are mapping out pathways to more eco-friendly handling of mining's solid-waste materials ............................... 34 Keeping the Largest Machines Moving In addition to routine maintenance, planners should consider new motor and braking technology during upgrades ....................................................... 38 Boring the Shafts at Slavkaliy's Nezhinskiy Project Shaft-sinking crews flatten the SBR learning curve with experience ............. 42 Special Report: Mining in British Columbia, Yukon and Vancouver The world's mining capital ............................................................................. 51 LEADING DEVELOPMENTS Iron Bridge Magnetite Project Gets Approval .....................................................4 Debswana Investing $2B to Extend Life of Jwaneng Mine .................................4 Newcrest Planning Block Cave for Red Chris ....................................................5 Nevada Tops Fraser's 2018 Mining Survey .........................................................5 Premier Gold Sells Several Properties ................................................................6 Jervois Mining, eCobalt Will Combine ...............................................................6 Lynas Rejects Wesfarmers $1.5B Takeover Bid ..................................................6 AROUND THE WORLD U.S. & Canada: Copper Mountain Has New Plan for British Columbia Properties ... 8 Latin America: Luminex Joins With BHP to Advance Concessions in Ecuador ....14 Australia/Oceania: Newmont Finishes Tanami Power Project ........................ 16 Africa: Vedanta Zinc Starts Gamsberg Mine ................................................. 18 Asia: RUSAL, RusHydro Launch First Production Line of BoAZ ........................ 20 Exploration Roundup: Hudbay Intersects High Grade Near Lalor Mine in Manitoba .................................................................................................... 22 This month, E&MJ offers an inside look at the initial considerations for leach pad design. On the cover, the heap leach facility at the El Castillo mine in Sonora, Mexico. (Photo: Minera Alamos) DEPARTMENTS Calendar ...................................................... 26 Classifi ed Advertisements ............................ 78 Equipment Gallery ........................................ 74 From the Editor................................................2 Markets ........................................................ 80 Operating Strategies .................................... 64 People .......................................................... 12 Processing Solutions .................................... 72 Suppliers Report........................................... 68 This Month in Coal ....................................... 24 Waste Management....34 Dragline Maintenance....38 Shaft Sinking....42

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