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  • SME
    Overcoming Challenges in Tunneling for Albany’s Beaver Creek Clean River Project, Albany, New York - NAT2022

    By Jerry Wang, Greg Bold, Mahmood Khwaja, Rebecca Caldon, William Simcoe

    Phase III and Phase IV of the Beaver Creek Clean River Project, Albany, NY, includes microtunnel construction of 2,320 feet of 48-inch/36-inch internal diameter (ID) conveyance pipe and a 525 foot lon

    Dec 1, 2022

  • SME
    Port Mann Main Water Supply Tunnel—Ground Freezing the TBM Face under the Fraser River

    By Brian McInnes, Joseph A. Sopko, Behzad Khorshidi

    "The Port Mann Main Water Supply Tunnel involves a 1km long tunnel beneath the Fraser River from Surrey to Coquitlam, BC. At depths of up to 60 m below ground, the earth pressure reached 6 bar. The tu

    Jan 1, 2016

  • SME
    Industrial Mineral Opportunities In British Columbia And Alberta, Canada

    By W. N. Hamilton

    British Columbia is geologically favourable for a rich variety of industrial mineral occurrences. Some have been produced for years, others overlooked until recently. Major production occurs for asbes

    Jan 1, 1987

  • SME
    Gold Recovery From High-Arsenic-Containing Ores At Newmont?s Roasters (f983f2f6-4b58-4eb9-a694-f0892e2303d7)

    By R. R. Fernández

    The Newmont roasting plant in Carlin, Nevada, commenced operating in December 1994. Over the years, refractory ores and pyrite concentrates from different gold deposits constituted the feed to the fa

    Jan 1, 2010

  • SME
    Using Geophysics To Characterize Lignite/Coal Resources - 1.0 Introduction (bb51c3f7-3687-4e3f-b59b-46046126f6f9)

    By William P. Walsh

    In December 1983 the author undertook an investigation in east Texas which was organized to learn the feasibility of applying geophysical techniques over shallow lignite deposits. The work embraced ex

    Jan 1, 1986

  • SME
    Pollutant Levels In Underground Coal Mines Using Diesel Equipment (bfa62798-80e8-4644-84d6-eb09c005e258)

    By Susan T. Bagley, Kenneth L. Rubow, David H. Carlson, Bruce K. Cantrell, Winthrop F. Watts

    Permissible exposure limits (PELs) have been established for gaseous pollutants, carbon monoxide (CO), carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2), and some gas-phase hydrocarbons

    Jan 1, 1993

  • SME
    Application of different objective weighting methods in rockburst - RASIM2022

    By QU Hong-lue, YANG Lin-han

    Aiming at the subjective impact caused by subjective weighting method in the establishment of rockburst risk attribute identification and prediction model, the combined weighting method was introduced

    Apr 26, 2022

  • SME
    Recovery Of Zircon And Other Economic Minerals From Wet- Gravity Tailings Using The Floatex Density Separator

    By Kim McKnight

    Dupont has successfully incorporated a Floatex Density Separator into its wet-gravity operations for the recovery of zircon from titanium tailings. Results indicate that the Floatex achieved a zircon

    Jan 1, 1996

  • SME
    Design Diagrams for Estimating Tunnel Face Stand-Up Time in Water-Bearing Ground

    By R. Schuerch, G. Anagnostou, R. Poggiati

    "The paper presents dimensionless design diagrams for estimating the stand-up time of a tunnel face in saturated ground of medium-low permeability. The diagrams cover a wide range of ground parameters

    Jan 1, 2016

  • SME
    Technology News - Using Mobile Satellites For Exploration Work - Fraser Claridge

    A group of geologists is located in a remote area of North America, without telephone lines, electricity or even running water. They have spent days accumulating data for a mining company that is eage

    Jan 1, 1999

  • SME
    Tunnel Design for When H2O meets FeS2 Underground - NAT2024

    By Jim Finley, Adam Bedell, Eric Schrader

    The CSO 52 Storage Tunnel and Pump Station project consists of 4,700 ft of hard rock tunnel, 2 intakes, and a 4 MGD wet pit pump station. During the geotechnical investigation, it was determined that

    Jun 23, 2024

  • SME
    Evaluation Of Hyperbaric Filtration For Fine Coal Dewatering: Part I (2bf50cb1-82b0-4a2c-86af-5ff91aefd198)

    By J. G. Groppo

    Hyperbaric filtration was evaluated at the laboratory scale for dewatering fine coal cleaned by froth flotation. A laboratory pressure filtration procedure is described to obtain uniform cake structur

    Jan 1, 1994

  • SME
    Iron Carbide, A Possible Replacement For Premium Quality Scrap

    By A. W. Swanson

    Iron carbide, containing 93.3% Fe and 6.7% C, is a tailor made feed for the electric arc furnace (EAF) and has recently gained worldwide attention as a possible replacement for premium quality scrap.

    Jan 1, 1994

  • SME
    A PC-Based Worker Scheduling System For Underground Mines

    By R. L. Grayson

    Following lip on a USBM-sponsored research project, the authors have utilized the knowledge-base structure and system concepts from the Sun Sparcstation-based worker scheduling system of the Mine Mana

    Jan 1, 1996

  • SME
    Analysis Of Retreat Mining Pillar Stability

    By Frank E. Chase

    Preventing pillar squeezes, massive pillar collapses, and bumps is critical to the safe and efficient recovery of coal during room-and-pillar retreat mining. To help prevent these problems, the U.S. B

    Jan 1, 1995

  • SME
    Thallium Removal From Mining Influenced Wastewater Using Permanganate Oxidation - SME Annual Meeting 2022

    By L. Berwick, A. Karunanayake, D. Skutt, H. Heath, J. Wang

    Thallium (Tl) is a highly toxic heavy metal, soluble over a wide pH range. Tl levels may exceed discharge limits in mining-influenced water associated with processing gold, lead, cadmium, zinc, and co

    Mar 2, 2022

  • SME
    Goldstrike Mineralogy And Process Options

    By H. J. H. Pieterse

    This paper highlights the mineralogy of the Barrick Goldstrike Mines Inc. area. The mine is located at the north end of the Tuscarora Spur and is part of the Bluestar/Goldstrike subdistrict of the Car

    Jan 1, 1993

  • SME
    Underground Ventilation Remote Monitoring and Control System

    By Kirk H. P. E. McDaniel, Mark T. Strever, Keith G. Jr. Wallace

    This paper presents the design and installation of an underground ventilation remote monitoring and control system at the Waste Isolation Pilot Plant. This facility is designed to demonstrate safe und

    Jan 1, 1995

  • SME
    Cyanidation Of A High Grade Gold Flotation Concentrate

    By D. A. Knight

    The property is located in the Porgera Valley 600 Km North West of Port Moresby. The remote location is 2500 m above sea level. The mine area has 3,600 mm of annual rainfall and a temperate climate wi

    Jan 1, 1992

  • SME
    Testing Procedure For Determination Of Coal Seam Compressive Strength In The Laboratory

    By V. B. Achanti

    Reliability of the compressive strength of a coal seam determined in the laboratory is often subjected to debate. Effects of the coal seam's inherent characteristics, specimen preparation, testin

    Jan 1, 1996