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  • SME
    Analysis Of Airborne And Waterborne Particles Around A Taconite Ore Processing Facility

    By Charles W. Axten

    Since the mid-1970s, samples of airborne and waterborne fibrous particulates have been collected in the area of the Northshore Taconite Ore Processing Facility by the Minnesota Department of Health (M

    Jan 1, 2007

  • SME
    Technical innovations spur resurgence of copper solution mining

    By J. B. Hiskey

    Introduction The domestic copper industry has suffered for some time from declining ore grades; rising costs associated with conventional mining, milling, smelting and refining; tightening environm

    Jan 11, 1986

  • SME
    Laboratory Assessment Of Rock Fragmentation Process By Continuous Miners – Preprint 97-172

    By V. B. Achanti, A. W. Khair

    Laboratory studies were carried out at West Virginia University to investigate the rock fragmentation mechanism by continuous miners using an automated rotary cutting simulator. The primary factors in

    Feb 24, 1997

  • SME
    SME Leadership Forum Addresses Shortage of Mining Professionals

    By Steve Kral

    In 2002, many in the mining industry — companies, academia and government — realized that the industry would soon be facing a serious shortfall in salaried and hourly employees. Depending on whose nu

    Jan 1, 2006

  • SME
    Looking Back at the Metal Mines of Cornwall

    By Thomas A. Simpson

    Traveling through the moors and valleys of Cornwall, England, one is reminded of the extensive mining activities of the past. Abandoned shafts, remains of granite block wheel houses and engine houses,

    Jan 9, 1981

  • SME
    100,000 Expected at ConExpo-Con/Agg 2002 in Las Vegas

    More than 100,000 people are expected to be in Las Vegas, NV in March for ConExpo-Con/Agg 2002, the largest exhibit of its kind in the Western Hemisphere. This triennial event features equipment, ser

    Jan 1, 2002

  • SME
    The Hallandsås Dual Mode TBM

    By Werner Burger

    The Hallandsås project with a long history, first started in 1991, is well known in the tunneling community. In the past it has been stopped twice for technical and environmental reasons. The third at

  • SME
    Mining and Sustainable Development at Red Dog

    By D. H. Horswill

    The Red Dog Mine is the world’s largest zinc mine. It is located 145 km (90 miles) north of the Arctic Circle in northwest Alaska on lands owned by the Inupiat Eskimo organization called the Northwest

    Jan 1, 2000

  • SME
    Pilot-Scale Study Of Fluorite Beneficiation Using A Cyclonic Static Microbubble Flotation Column

    By X. Zhou

    In this study, the cyclonic static microbubble flotation column (FCSMC) was investigated for fluorite beneficiation. The structure and principle of the specially designed column are described. Fluorit

    Jan 1, 2007

  • SME
    New Chances From Old Shafts - Risk Management In Abandoned Mine Sites In Germany ? Introduction

    By J. Kretschmann

    Around the world, mining has been done for thousands of years for the benefit of humankind. The winning process in mining operations ends with the depletion of the deposit or its closure if the operat

    Jan 1, 2012

  • SME
    Characterization Of Goldstrike Ore Carbonaceous Matter

    By J. F. Stenebråten, W. P. Johnson, D. R. Brosnahan

    Carbonaceous material (CM) from ores of varying preg-robbing activity from Barrick Goldstrike Mines Inc. (BGMI), Nevada, was characterized in terms of its functional group content, hydrocarbon content

    Jan 1, 1999

  • SME
    Geology Of The Biwabik Iron Formation And Duluth Complex

    By Mark A. Jirsa

    The Biwabik Iron Formation is a ~1.9 billion year-old sequence of iron-rich sedimentary rocks that was metamorphosed at its eastern- most extent by ~1.1 billion year-old intrusions of the Duluth Comp

    Jan 1, 2007

  • SME
    State Of The Art Of Big Hole Drilling

    By Paul Richardson

    This paper will review several projects completed during the period from 1976 through 1984 which have been carried out utilizing big hole drilling concepts. The projects discussed will be from various

    Jan 1, 1985

  • SME
    Unique Characteristics for the Design and Construction of the New Twin Tunnel “Caltanissetta”, on Highway 640 in Sicily, Italy - Practical Experience in Using ø15.08 m (50 feet) Diameter E.P.B. Machine

    By Pier Francesco Paglini, Gian Luca Menchini, Pier Francesco Boschi

    "PROJECTThe “Caltanissetta” Tunnel is part of the ANAS S.p.A (National Autonomous Roads Corporation) $ 1.3 Billion Highway 640 Caltanissetta-Agrigento (Sicily, Italy) Rehabilitation Project, consistin

    Jan 1, 2016

  • SME
    Tunneling And Trenchless Technology Key To Charleston?s Infrastructure

    By Larry F. Drolet

    Charleston, SC is anything but boring. The city was founded in 1670 and has played a significant role throughout the history of the United States. Located along the coast of the Atlantic Ocean in the

    Jan 1, 2013

  • SME
    Toward a Mine-Wide, Real-Time, and Autonomous Geotechnical Change Detection, Monitoring, and Prediction Framework for Underground Mines

    Adverse ground behavior events, such as convergence and falls of ground, are some of the most significant challenges and hazards in underground mines. Our goal is to work toward mine-wide, digital, an

    Jul 28, 2020

  • SME
    Discussion - Interactive graphics for semivariogram modeling

    M.S. Azun I have many objections to the content of the author's paper. Before discussing it, however, I would like to repeat the property of semivariogram function. Second order stationary

    Jan 11, 1985

  • SME
    Dulles Corridor Metrorail Extension Project - Tunneling Options for Tysons Corner

    By John Rudolf

    Metropolitan Washington Airport Authority is currently undertaking the first Phase of Metro?s Extension to Northern Virginia. A wide range of tunnel options was considered for the Tysons Corner segmen

    Jan 1, 2008

  • SME
    Sublevel Caving at Craigmont Mines Ltd.

    By R. A. Basse, W. D. Diment, A. J. Petrina

    INTRODUCTION In 1957, diamond drilling on a magnetic anomaly indicated an extensive zone of copper mineralization on what is now the Craigmont Mines property. By mid¬1958, drilling established a copp

    Jan 1, 1982

  • SME
    Grinding Methods To Enhance The Reactivity Of Olivine

    By D. C. Dahlin, W. K. O’Connor, G. E. Rush, C. A. Summers, S. J. Gerdemann

    The Albany Research Center (ARC) conducted studies of mechanical activation by conventional and ultra-fine grinding techniques to enhance olivine reactivity in mineral carbonation reactions. Activated

    Jan 1, 2004