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  • SME
    The Relationship Between Tunnel Convergence and Machine Operational Parameters and Chip Size for Double Shield TBMs— A Case History of Ghomroud Water Conveyance Tunnel

    By Jamal Rostami, Ebrahim Farrokh

    Selection of tunneling method, specially the use of shielded machines for application in deep rock tunnels can be heavily impacted by presence of ground convergence and squeezing conditions. Tunnel co

    Jan 1, 2007

  • SME
    New Process For The Recovery Of High Grade Copper From Ammonical Solutions. - 1. - Summary Of The Process:

    By Luis de la Pe[n]a Porth

    The present process refers to a method for efficiently obtaining high purity metallic copper from copper ammonium sulfite. Essentially, this process consists of submitting the copper ammonium sulfite

    Jan 1, 1974

  • SME
    Study Of High MgO Blast Furnace Pellets

    By J. A. M. Cano

    An extensive research work was developed by Samarco Mineracao S/A to study the quality characteristics of blast furnace pellets produced with high content of MgO. Comparative blast furnace simulatio

    Jan 1, 1991

  • SME
    Methane Emissions And Airflow Patterns On A Longwall Face

    By S. J. Schatzel

    Coal mine longwall face ventilation is an important component of the overall mine ventilation system. Increases in the production rate due to higher capacity mining equipment tend to increase methane

    Jan 1, 2012

  • SME
    Tunneling Methods Under Low Cover Conditions

    By Terry M. Tilley, Gregory P. Sherry

    Purpose This is a unique project because the mining and tunneling industries have become highly mechanized and cannot normally accommodate a project where surface disturbance must be minimized or e

    Jan 1, 2005

  • SME
    Maximizing Return On Capital Projects

    By J. Humphries

    With today?s turbulent markets and unprecedented global opportunities, the need to optimize net present value and internal rates of return from capital investments has never been greater. To help addr

    Jan 1, 2011

  • SME
    Improving Real-Time Expert Control Systems Through Deep Data Mining Of Plant Data And Global Plant-Wide Energy Monitoring And Analysis

    By L. B. Hales

    Expert control of grinding and flotation plants has been successfully used in the minerals industry since the 1970?s. The earliest of these systems were written in a hard-coded fashion in FORTRAN, BA

    Jan 1, 2012

  • SME
    Production Of Huntite And Hydromagnesite With Flame Retardant Featured By Flotation

    By O. Kangal

    Flame retardant materials can be incorporated or applied to products, including plastics and textiles, to increase their resistance to fire. Incorporating a flame retardant in combustible materials an

    Jan 1, 2009

  • SME
    NATM Tunnels at Stanford Linear Accelerator Center, Menlo Park, California

    By P. J. Doig

    The LCLS project at SLAC will allow new insights into material properties, chemical reactions and biological processes. The project includes half a mile of new underground construction. Excavation in

    Jan 1, 2008

  • SME
    Automated Conditions Mining at Sylvite

    By William G. Schultz

    Sylvite of Canada, a wholly owned subsidiary of Hudson Bay Mining and Smelting Co., operates an 8000 TPD potash mine and refinery located nine miles North East of Rocanville, Saskatchewan. Prior to Hu

    Jan 1, 1972

  • SME
    Evaluation Of Silica Sand And Steel Shot For Superfine Grinding Of Coal

    By O. A. Orumwense

    The liberation of intimately disseminated impurities from the coal matrix often demands that the material be ground to a high degree of fineness. Similarly, some technologies for coal utilization requ

    Jan 1, 1993

  • SME
    Design of the Brightwater Conveyance Tunnels

    By Leon Maday, Dan L. Pecha, Jeremy Johnson, Daniel N. Adams

    The Brightwater conveyance system includes 26 km of tunnels, a 130 mgd pump station, 2 km of micro tunnels, and a 2.4 km outfall. The tunnels extend from Woodinville to Puget Sound through varying soi

    Jan 1, 2005

  • SME
    Methods For Removing Arsenic From Aqueous Systems

    By L. R. Moore

    Arsenic is among the list of major contaminants in mining aqueous waste streams. Though the elemental form is toxic, the aqueous oxyanions are more so. The most common forms of arsenic released duri

    Jan 1, 2012

  • SME
    Discussion - Using Geostatistics to Predict the Characteristics of Washed Coal

    S.L. Barua and Y.C. Kim M. Armstrong's paper is very interesting and can be regarded as a pioneering work of applying geostatistics on washed coal. The density levels used in her study are uni

    Jan 1, 1985

  • SME
    A Patent Licensing Regime for the Development and Protection of the Area’s Resources

    By Yao Zhou

    Under the United Nations Convention on the Law of the Sea (UNCLOS), the international seabed area (Area) and its resources are the common heritage of humanity (CHH). Patent rights can be incompatible

    Sep 1, 2014

  • SME
    Engineering Geology Of The Mica Underground Powerplant

    By Douglas D. Campbell, Alan S. Imrie

    INTRODUCTION Mica Dam is located on the Columbia River just downstream of the "big bend" of the Columbia, where it leaves the Rocky Mountain Trench and begins to flow southwards, approximately 85 m

    Jan 1, 1976

  • SME
    Performance Of The Lorraine Mine Site Cover To Limit Oxygen Migration

    By Bruno Bussière, Michel Aubertin, Anne-Marie Dagenais, Johanne Cyr

    A five steps remediation program was commissioned in 1998 for the acid generating Lorraine mine site, located in the Témiscamingue region, Quebec, Canada. It included, as the main expenditure, a cover

    Jan 1, 2005

  • SME
    Interaction Of Grade And Metallurgy Simulations In Assessing Uncertainty For Ore Routing Determinations In The Gold Quarry Deposit

    By M. Baumann

    Introduction Gold Quarry is one of the largest gold deposits in Nevada, located along the Carlin Trend, approximately seven miles north of Carlin, NV. Owned and operated by Newmont Mining Corporati

    Jan 1, 2007

  • SME
    Conversion Of A Tailing Impoundment To A Freshwater Reservoir, The Eagle Park Reservoir Project, Climax Mine, Colorado

    By J. L. Cupp, R. C. Ford, B. R. Romig

    The Climax Molybdenum Mine, located near Leadville, Colorado, is the site of a lengthy mining history spanning more than 80 years. In the 1960’s, extraction of molybdenum from oxide ore located adjac

    Jan 1, 1999

  • SME
    Ergonomic Interventions At Unimin (a8427aad-fa40-4708-ba18-5e74f8b6935f)

    By A. Mayton, W. Porter, A. O’Brien

    In 2004, management at Unimin’s Gleason, TN operation began implementing ergonomic interventions specifically targeted to reduce risk of musculoskeletal injuries (MSIs). Together with corporate and s

    Jan 1, 2007