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  • SME
    Copper Hydrometallurgy – Evolution and Milestones

    By Nathaniel Arbiter

    In contrast to pyrometallurgy's 6000year history in metals production, hydrometallurgy is of relatively recent origin. The earliest reference to it was in the 16th century, with the first applica

    Jan 1, 1994

  • SME
    Slurry Shield Tunneling in Portland—West Side CSO Tunnel Project

    By James J. Kabat, James A. McDonald

    Impregilo/SA Healy JV recently completed this Project using the first slurry shield TBM’s in the United States. The Project used two TBM’s to mine 18,000 feet in sands, gravels, and silty alluvial mat

    Jan 1, 2007

  • SME
    Myths In Grinding Mill Q.A. — Uncovering The Costs

    By V. Svalbonas

    The process of grinding mill quality assurance brings with it associated truths and myths. When the mill quality assurance process took its first great steps forward in the late 1970s and early 1980s

    Jan 1, 1999

  • SME
    Sampling Methods for Seamount Cobalt-rich Crusts and Determination of the Minimum Reliable Assay Sample Quantity

    By Xuehua Zhang, Shengxiong Yang, Huiqiang Yao, Gaowen He

    "Seamount cobalt-rich ferromanganese crusts (hereafter crusts) are authigenic iron/manganese hydroxide/oxide deposits formed from direct precipitation of minerals from seawater onto a hard substrates

    Sep 1, 2014

  • SME
    Methods For Determining Roof Fall Risk In Underground Mines (e9e99c27-c4ac-4dc4-b19d-607c245139c5)

    By T. Bajpayee, L. Prosser, A. Iannacchione

    Reducing the number of roof fall injuries is a goal of the NIOSH mine safety research program. Central to this effort is the development of assessment techniques that will help to identify the nature

    Jan 1, 2007

  • SME
    Team Organization in the Mining Industry

    By David M. Spatz

    The way people interact, collaborate, learn and improve can have a profound impact on a company’s efficiency, performance, productivity and return on investment. This is the motive behind corporate e

    Jan 1, 2000

  • SME
    Techniques for Assessing and Mitigating Longwall Subsidence Effects on Highway Bridges Mining, Metallurgy and Exploration (81ecdff2-8ca5-451f-abf7-490db849ce9c)

    By Yi Luo, Jian Yang, Hua Jiang

    Surface subsidence events induced by underground longwall coal mining operations can cause various disturbances to surface structures ranging from integrity and stability to functionality problems. Hi

  • SME
    The Gas Department: Adding Value To The WMC Olympic Dam Operation

    By R. K. Simpson, C. S. Eldridge, M. H. Tyler, J. P. Hodgkison

    The WMC Olympic Dam Operation in South Australia is an integrated site, involving brown fields exploration through to production of copper cathode, uranium oxide, gold and silver bullion. The Geolog

    Jan 1, 2002

  • SME
    Maximizing Value By Protecting Your Intellectual Property Assets ? Introduction

    By S. E. Chetlin

    In the mid-1970?s, the market value of tangible assets of S&P 500 companies far outstripped the value of intangible assets, including intellectual property (e.g., 83% tangible assets v. 17% intangible

    Jan 1, 2012

  • SME
    Barrick Goldstrike Roaster Facility Roasting And Gas Handling

    By A. Cole, A. Bolland

    The roasting and gas handling circuits at Goldstrikes' new Roasting Facility incorporate proven technologies in a unique combination. During the design of the plant, every effort was made to uti

    Jan 1, 2001

  • SME
    European Tunneling Technology And Methods

    By Brian Fulcher

    While tunneling in Europe has been a tradition for centuries, many companies and countries have embraced tunnel innovation with considerable vigor and creativity. Indeed, local needs and site conditi

    Jan 1, 2007

  • SME
    Ventilation planning at the Minerales Monclova?s Mines

    By J. R. P. Aguirre

    Minerales Monclova, S.A. de C.V. (MIMOSA) is owned by Grupo Acerero Del Norte (GAN). This company has 4 underground coal mines and 1 open pit to feed it?s steelmaking facilities located in the city of

    Jan 1, 2009

  • SME
    Promoting Cooperation Between Small- and Large-Scale Miners in Ghana

    By C. Anim-Sackey, R. K. Amankwah

    Some large-scale mining companies in Ghana have adopted proactive management strategies in dealing with small-scale (galamsey) miners who have encroached on their concessions. This has been mainly ac

    Jan 1, 2004

  • SME
    8 M Diameter 7 KM Long Beles Tailrace Tunnel (Ethiopia) Bored And Lined In Basaltic Formations In Less Than 12 Months

    By Antonio Raschillà

    On the 2nd of June 2007 SELI S.p.A. started the excavation of Beles Tailrace Tunnel (Ethiopia). The new 8,07 m diameter DS Universal TBM utilized for the tunnel excavation was manufactured by SELI S.p

  • SME
    MinExpo 2008: The Biggest Ever

    From the massive equipment that moves the earth, to the parts that keep the equipment moving, it was all on display for more than 35,000 people who at-tended MinExpo 2008 at the Las Vegas Convention C

    Jan 1, 2008

  • SME
    Gold and Silver Exploration in Irian Jaya

    By D. Potter

    In 1990, Freeport Exploration began regional reconnaissance exploration programs in Irian Jaya, the easternmost province of the republic of Indonesia (Fig. 1). Irian Jaya occupies the western half of

    Jan 1, 1999

  • SME
    Numerical Evaluation of Tunnel Lining in Visco?elastic creep active ground

    By Kyoosang Yoo

    The report presents the results corresponding to the analysis of a lining system for tunnels in soil and soft rock in creep-active ground. The purpose of the analysis is to evaluate the performance of

    Jan 1, 2010

  • SME
    Technology News – Atlas Copco Wagner Announces Improved 10-t LHD

    Atlas Copco Wagner launched its ST1010 Scooptram load haul dumper. The ST1010 replaces the company’s Wagner ST-1000 Scooptram. The improvements to the Wagner ST1010 include increased reliability, ea

    Jan 1, 2000

  • SME
    Underground Mine Air and Strata Temperature Change Due to the Use of Refuge Alternatives Mining, Metallurgy and Exploration (90281dd3-2aab-47ab-9150-b1897bd40ef5)

    By M. A. Reyes, L. Yan

    Heat and humidity buildup withn refuge alternatives (RAs) may expose occupants to physiological hazards such as heat stress. The Mine Safety and Health Administration (MSHA) regulations require RAs in

  • SME
    Geographic Information Systems In Borate Exploration: A Case Study At “Old Borate”

    By J. R. Piper

    “Old Borate,” located in the Calico Mountains east of Barstow, California, lead domestic colemanite production from 1884 through 1907. Mineral exploration at “Old Borate” in the early 1980's, e

    Jan 1, 2001