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  • SME
    Geophysics And Geochemistry For Exploration In Deep Carbonate Terranes - Introduction

    By John B. Gustavson

    The mineral deposits found in carbonate facies rocks of sedimentary basins include deposits comprised of the country rock itself such as limestone for chemical uses, dolomite for road aggregate, and a

    Jan 1, 1976

  • SME
    Portland, Oregon’s Alternative Contract Approach—A Final Summary

    By Paul Gribbon, Julius Strid, Greg Colzani, Jim McDonald

    Portland, Oregon’s $370 million West Side Combined Sewer Overflow Tunnel Project has completed the final phase of construction and commissioning. The construction contract, which began in September 20

    Jan 1, 2007

  • SME
    Earth Pressure Balance Tunneling In Canada

    By Laura McNally

    In 2006, McNally International Inc., in a joint venture partner-ship with Aecon Constructors, was the successful bidder on two York Region Tunnel Projects: the Bathurst Collector/Langstaff Trunk Sewer

    Jan 1, 2008

  • SME
    Improved Selectivity Of Super-Conducting Dry HGMS Of Fine Powders By Vibration

    By Y. Wang, E. Forssberg, A. Johansson, B. Chan

    A super-conducting high gradient magnetic separator with matrix vibration in dry separation mode is a powder purification device, which has been used to remove weakly magnetic impure particles from fi

    Jan 1, 2001

  • SME
    A Commentary on the Reporting of Coal Exploration Results, Resources and Reserves

    By S. Rupprecht

    "This article addresses the prevalence of poor public reporting practices of coal exploration results, coal resources and coal reserves in southern Africa. Currently, the reporting of coal tonnage wit

    Jul 1, 2019

  • SME
    Developing a Virtual Reality Environment for Mining Research Mining, Metallurgy and Exploration (SPRINGER)

    By Brendan Demich, Brendan Macdonald, Timothy J. Orr, Jason Navoyski, Jennica L. Bellanca, William J. Helfrich

    Recent advances in computing, rendering, and display technologies have generated increased accessibility for virtual reality (VR). VR allows the creation of dynamic, high-fidelity environments to simu

  • SME
    Pumping and Drainage

    By Christopher J. Bise

    INTRODUCTION The control of nuisance water in a mine is extremely important; left uncontrolled, nuisance water can have a severe effect on haulage, ventilation, production, and the health and safe

    Jan 1, 1986

  • SME
    Transporting A TBM Through A Large City On The East Side CSO Tunnel Project In Portland, OR

    By Niels Kofoed

    Upon completion of the 6,200 m (20,340 lineal ft; lft) North Tunnel drive for the Portland East Side Combined Sewer Overflow (CSO) Tunnel project in Portland, OR, the slurry tunnel boring machine (TBM

    Jan 1, 2011

  • SME
    Isothermal Reduction Kinetics and Mechanism of Pre-oxidized Ilmenite Mining, Metallurgy and Exploration

    By Mingyang Li, Yan Lv, Xiaolong Ma, Xudong Gao, Jie Zhao, Yingyi Zhang

    The reduction process of pre-oxidized ilmenite concentrate powder in 30%CO–70%N2 atmosphere was characterized by thermogravimetric and differential thermogravimetric (TG-DTG) analysis system at the te

  • SME
    Isothermal Reduction Kinetics and Mechanism of Pre-oxidized Ilmenite Mining, Metallurgy and Exploration (9bd09701-4fce-4153-aadd-0723612382a9)

    By Mingyang Li, Yan Lv, Xiaolong Ma, Xudong Gao, Jie Zhao, Yingyi Zhang

    The reduction process of pre-oxidized ilmenite concentrate powder in 30%CO–70%N2 atmosphere was characterized by thermogravimetric and differential thermogravimetric (TG-DTG) analysis system at the te

  • SME
    Up-to-date Excavation, Support, and Lining Solutions Meet Timing Requirements for the First Two Tunnels of the 2006 Winter Olympic Games

    By Georgios Kalamaras, Chiaia Dinu, Platania Paolo, Alessio Carlo, Giampiero Cirvegna, Claudio Santucci

    The Project alignment initiates north of Pinerolo, along the State Road 23[S.S. 23] that is one of the principal arteries to the northwestern Alps where a number of Olympic events for the 2006 Winter

    Jan 1, 2005

  • SME
    Recovery Of Fine Coal From Preparation Plant Refuse Using Column Flotation

    By J. G. Groppo, A. E. Bland, B. K. Parekh, W. F. Stotts

    Many coal preparation plants discard fine coal (generally minus 100 mesh) because it is difficult to beneficiate economically. At the Kentucky Energy Cabinet Laboratory (KECL), the waste streams from

    Jan 1, 1988

  • SME
    2011 Permeation Test Results For Grouts Made With Ultrafine Cement

    By Raymond W. Henn

    The 32nd annual short course ?Grouting Fundamentals and Current Practice? was held at the Colorado School of Mines, June 13-17, 2011. The field demonstration portion of the course was conducted June 1

    Jan 1, 2011

  • SME
    Ground Control Design For Highwall Mining (237c3f7a-5149-4dad-a860-b8b9ad20fedb)

    By R. Karl Zipf

    Highwall mining is an important surface coal mining method, and it may account for approximately 4% of total U.S. coal production. Highwall stability is the major ground control related safety concer

    Jan 1, 2005

  • SME
    Industrial Minerals 1987

    By L Baumgardner, A. V. Castelli

    Barite In 1987, United States mine production of barite increased 15.870, consumption (sold or used by grinding plants) increased by 6.97, and imports are estimated to have fallen by 19.57. World

    Jan 6, 1988

  • SME
    A Review Of The Technology Of Glass Recovery From MSW ? Introduction

    By Hugh R. Rhys

    The question of the desirability of recovering cullet from MSW in order to recycle it into the manufacturing of glass containers remains a controversial one. The main factors appear to be: 1. The pos

    Jan 1, 1975

  • SME
    Clay Mineralogy Of The Goathill North Rock Pile, Questa Mine, Taos County, NM: Origins And Indications Of In-Situ Weathering - Preprint 09-098

    By K. Donahue

    Clay minerals play an important role in the gravitational stability of man-made rock piles by affecting geotechnical and hydrological characteristics of the material. The Goathill North rock pile at t

    Jan 1, 2009

  • 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
    Filtered Air Supply System Reduces Roof Bolter Operators? Exposure To Respirable Dust

    The National Institute for Occupational Safety and Health (NIOSH) conducted a study to determine the effectiveness of a filtered air delivery system to reduce respirable dust exposure to roof bolter o

    Jan 1, 2012

  • SME
    Coal (Coal production by coal-producing regions, 2001)

    With the dawning of a new century came the beginning of a new era in the coal industry. Instead of the traditional practice of only buying and selling produced coal in the United States, a coal futur

    Jan 1, 2002