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  • SME
    Pit optimization on clustered realizations: Identifying functional scenarios

    By Tyler Acorn, Brandon Wilson, Jeff Boisvert

    Project-scale decisions in surface mining operations rely on the optimization and subsequent evaluation of pit limits. This process ignores the ability for mine plans to adapt as more information is g

  • SME
    Introducing in January 2019... SME’s new member benefit

    By None None

    Life as a mining/mineral professional doesn’t leave much time for perusing 20-page technical papers. Yet, being technologically savvy is part and parcel of a successful career in this industry. What’s

  • SME
    Iron Ore of Canada case study; A cause for concern

    "With millions of dollars and thousands of lives at stake, the Iron Ore Company of Canada (IOC) turned to a private wireless network for help.IOC needed a network that possessed the ability to adapt t

    Jan 1, 2015

  • SME
    Technical Note - Subsidence and time

    By C. D. Elifrits, N. B. Aughenbaugh

    Introduction Federal and state laws enacted to regulate coal mining and the accompanying public concern about the adverse effects that mining might have on land use have focused much attention on t

    Jan 8, 1986

  • SME
    Successful Application Of Remote Seals Used To Extinguish A Coal-Mine Fire

    By D. Bour, C. Nyikos, R. Curtice

    Fire in a coal mine can be disastrous on many levels. In most cases, when a fire is detected, mining operations cease and all personnel are evacuated. Underground coal-mine fires are difficult to exti

    Jan 1, 2002

  • SME
    The Design, Commissioning And Operation Of The Castle Valley Plant In Wellington, Ut

    By P. J. Bethell

    Background Increasingly complex geological conditions, with the presence of high ash binders in the mining horizon were encountered at the A.C. I. Dugout Mine near Price, Utah. This led to the prod

    Jan 1, 2008

  • SME
    Case Study Of Efforts To Reduce Costs And Increase Production At A Mid-Sized International Mining Company

    By M. V. T. Da Silva, J. C. Harrison

    Eldorado Gold Corporation of Vancouver, B.C. owns and operates three gold mines. The São Bento underground gold mine in Minas Gerais State, Brazil produced 105,907 ounces in1997. The La Colorada and

    Jan 1, 1999

  • SME
    Water Jets And Rock Hammers For Tunneling In The U. S. And U. S. S. R.

    By William C. Cooley

    SUMMARY A review is presented of the state of development of high pressure water jet equipment and of large impact hammers for rock tunneling. Information from the U.S.S.R. is based on published li

    Jan 1, 1997

  • SME
    Design and Construction of a Multiple-Drift Subway Underpinning Structure for Boston’s Central Artery/Tunnel Project

    By Robin B. Dill, Mark Pelletier, Daniel J. Dobbels, Subodh Bhaumik, Daniel J. VanRoosendaal

    Although primarily cut-and-cover excavations are required for replacement of the existing elevated I-93 interstate highway through the heart of Boston for the Central Artery/Tunnel (CA/T) project, som

    Jan 1, 2001

  • SME
    Design and Construction Performance of a Large Diameter Tunnel Constructed in Soft-Ground by the Stacked Drift Method

    By Paul H. Madsen, Victor S. Romero

    The Tren Urbano project in Puerto Rico includes a 19 m diameter tunnel constructed by the stacked drift method, which involves installation of a pre-supported concrete arch using multiple tunnels. Geo

    Jan 1, 2001

  • SME
    Determining The Amplitude Of Certainty For Empirical Rock Failure Criteria

    By K. Oraee

    The empirical rock failure criteria play an important role in predicting the mechanical behavior of rocks, since affecting parameters on the behavioral properties of rocks are complex and numerous. Us

    Jan 1, 2012

  • SME
    Excavating New York?s East Side Access Project

    By Desiree Willis

    One of New York City?s largest subway projects is under way 43 m (140 ft) beneath the surface of downtown Manhattan. The East Side Access project, more than 30 years in the making, was halted after a

    Jan 1, 2008

  • SME
    Do Refuge Chambers Represent a Good Strategy to Manage Emergencies in Underground Coal Mines? Mining, Metallurgy and Exploration

    By A. E. Halim, J. F. Brune

    The 2006 Sago, Darby, and Aracoma mine disasters in the United States (US) forced the US government to implement the 2006 MINER Act and additional regulations that require all US underground coal mine

  • SME
    Lithologic Controls On Aggregate Quality In A Mountain-Front Alluvial System--An Example From The Colorado Front Range

    By D. A. Lindsey

    Gravel lithology affects the quality of aggregate because different rock types in gravel have different physical and chemical properties. The lithologic composition of alluvial gravel reflects the com

    Jan 1, 2002

  • SME
    Waterproofing: Key to SCL tunnel lining design

    The global tunneling industry has many challenges, both technically and financially, with the latter likely to be a significant feature over the next few years. Many industries have ad-opted standard

    Jan 1, 2010

  • SME
    Diesel particulate filters ? the safe approach to a project, case study

    By D. F. O?Connor

    The health & safety of all workers in an underground environment is paramount to the success of our operations. The diesel emission reduction projects are key to improving such an environment. However

    Jan 1, 2009

  • SME
    Sustainable Change of Coal-Mining Regions Mining, Metallurgy and Exploration (eb41200c-f89a-4073-aec3-fcdb45ccee3e)

    By Jürgen Kretschmann

    According to the model of product life cycles, the global coal mining industry is in the stagnation phase. The coal demand of the main consumer, China, has peaked in 2013 and is slowly declining. The

  • SME
    The Tai Po to Butterfly Valley Aqueduct in Hong Kong

    By Derek. C. Arnold

    In order to meet increasing demands for water supply in the next millennium, the Government of the Hong Kong Special Administrative Region have identified the need for a major new water treatment and

    Jan 1, 1999

  • SME
    Origins Of Clay Minerals In The Molycorp Mine Goathill North Rock Pile, Questa, Nm

    By V. McLemore, N. Dunbar, K. Donahue

    There are three principle lines of evidence that indicate the clay minerals found in the Goathill North (GHN) rock pile at the Molycorp mine are predominantly a product of hydrothermal alteration, not

    Jan 1, 2007

  • SME
    Selective extraction of zinc from zinc ferrite

    By VIVEK KASHYAP, PATRICK TAYLOR

    Zinc ferrite is the major phase component present in zinc refinery residue (ZRR) and electric arc furnace dust (EAFD). Up to 71 percent zinc ferrite has been reported to be present in ZRR, and in most