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  • SME
    A New Tool In Financial Decision-Making Under Uncertainty

    By R. K. Singhal

    This new tool can be used for the proper assessment of the potential economic wealth of any risky capital project. It does provide an unambiguous recommendation of the type "go or no go" to the deci

    Jan 1, 1993

  • SME
    Chemical And Biological Cyanide Destruction And Selenium Removal From Precious Metals Tailings Pond Water

    By K. R. Gardner, P. B. Altringer, R. H. Lien, B. E. Dinsdale

    The Bureau of Mines, U.S. Department of the Interior, is investigating chemical and biological decontamination of complex wastewaters such as tailings pond water containing 280 ppm CN and 5 ppm Se as

    Jan 1, 1990

  • SME
    World?s Largest TBM Keeps Niagara Project On Track

    By Doug Harding

    The Niagara Tunnel Project (NTP) is a 10.4-km- (6.5- mile-) long, 14.4-m (47.5-ft) bored tunnel that will run under the city of Niagara Falls from the Upper Niagara River to the Sir Adam Beck power st

    Jan 1, 2008

  • SME
    Crisis Management: What To Do If Disaster Strikes

    By Joseph J. Zaluski, J. Steven Gardner, Marco M. Rajkovich

    The telephone rings at 3:20 a.m. An exasperated voice on the other end says, “There has been a mine explosion at Mine No. 5 and we have not heard from three units of men.” Twenty-three minutes later

    Jan 1, 2004

  • SME
    The Effect Of Bit Geometry And Size On Cutting Parameters In Linear Cutting

    By A. W. Khair

    This paper deals with the design characteristics of cutting tools and the operating parameters these tools are usually subjected to. Eight types of cutting tools/bits with different geometrical shapes

    Jan 1, 2001

  • SME
    South Cobb Tunnel - Cobb County?s Solution To Meeting Future Waste Water Capacity

    By Wojciech Klecan

    Cobb County, located on the northwest side of Atlanta, GA, is continually growing and, like many other metropolitan areas, it needs to increase the capacity of its waste water system to meet future de

    Jan 1, 2009

  • SME
    Water depth dependence of Mn-nodule features in the NE equatorial Pacific

    By Youngtak Ko, Wonnyon Kim

    Korean contract Mn-nodule field in the NE equatorial Pacific is composed of seven sectors showing average water depths of 4,513 - 5,025 m. Of the various factors controlling the property of Mn-nodules

    Sep 1, 2014

  • SME
    Managing the development of secondary drawpoints in high stress areas at Goldex Mine RaSiM10 (Rockburst): 2022 Proceedings

    By Véronique Falmagne, Chantale Doucet, Thomas Côté

    Production began in the Deep 1 zone of Goldex mine in 2017 at a depth of 1,200 m. Stope dimensions are 50 m high by 22 m wide (along strike) and the panel thickness varies between 22 to 35 m. The Deep

    Apr 26, 2022

  • SME
    The Effect Of End Constraint On The Compressive Strength Of Model Rock Pillars

    By Clarence O. Babcock

    Model pillars of limestone, marble, sandstone, and granite, with length-to-diameter ratios of 3, 2, 1, 0.5, and 0.25 (0.286 for granite), were broken in axial compression to determine to what extent a

    Jan 1, 1969

  • SME
    Flotation Rates and Zeta Potentials of Maceral Concentrates of Bituminous Coals

    By D. Men, R. Q. Honaker, J. C. Hower

    "Maceral separation is one possible technique to expand coking coal resources, either by increasing the blending ratio of non- or slightly caking coal or rationally utilizing the coking coal according

    Jan 1, 2015

  • SME
    Proactive Approach To Addressing Environmental Concerns For Tunneling Under Austin

    By Ray Brainard

    The Jollyville Transmission Main will be a 10.5-km- (6.5-mile)-long, 213-cm (84-in.) diameter rock tunnel. The tunnel will pass beneath the Balcones Canyonlands Preserve, which was established to prot

    Jan 1, 2012

  • SME
    Permitting New Tunnels in Southern Ontario, Canada—Panacea, Pragmatism, and Professionalism

    By Adrian Coombs, Paul Magowan, Derek Zoldy

    Continued development and intensification are fuelling the urgent need for new trunk infrastructure within The Regional Municipality of York and throughout the Greater Toronto Area. Permitting of thes

    Jan 1, 2007

  • SME
    Horizontal Chemical Grouting Beneath the Hollywood Freeway, Los Angeles Metrorail C-311

    By Michael F. Roach, Joseph K. Cavey, Gary E. Taylor

    A rigorous horizontal drilling and chemical grouting program was specified beneath the Hollywood Freeway (U.S. Route 101) section of Los Angeles Metrorail Contract C-311.Twin 6.67-m (22-ft.) diameter

    Jan 1, 1997

  • SME
    Effect of micro-bubbling on settling behavior of fine particles for deep-sea mining

    By Rei Arai, Yuta Yamamoto, Tetsuo Yamazaki, Naoki Nakatani

    "Methane hydrate is of interest as an alternative energy resource in Japan and the R&D program has been ongoing for ten years (MH21: http://www.mh21japan.gr.jp/english/). Rare-earth element-rich deep-

    Sep 1, 2014

  • SME
    Bolivar Cu-Zn Skarn Deposit, Sw Chihuahua, Mexico - Introduction

    By T. Robyn

    The Bolivar Cu-Zn skarn deposit in the Piedras Verdes mining district of Chihuahua is one of many base and precious metal deposits in the north-northwest trending Sierra Madre Belt extending across th

    Jan 1, 2012

  • SME
    Greenland: A Potential Trove of Minerals

    By Louis W. Cope

    Many Americans have seen Greenland while flying over it on their way to or from Europe. Few have visited this largest island in the world. Portions of the 20 percent of the territory that are not ic

    Jan 1, 2004

  • SME
    Sustainability at Bucyrus

    By U. Paschedag, H. Bussmann

    "Bucyrus manufactures the most comprehensive product portfolio of mining equipment worldwide. Its mission is to have a positive, lasting effect on our world. Bucyrus makes sustainable development a fu

    Jan 1, 2011

  • SME
    Underground Construction Is Crucial To Success Of Olympic Games Venues

    When the 2008 Olympic Games begin in Beijing, China is September it will not only mark the end of the journey for the Olympic torch and the thou-sands of participating athletes, but the games will als

    Jan 1, 2008

  • SME
    Instrumentation Plan For Monitoring Ground Movements Associated With Pillar Extraction Mining At The Kitt No. 1 Mine In Northern West Virginia

    By Robert C. Speck

    The U.S. coal industry has long utilized the pillar-extraction mining technique as a method for maximizing coal recovery. Like longwall mining, it causes large-scale movements that progressively propa

    Jan 1, 1982

  • SME
    Heap Leaching Discussed at Roundtable

    By Kerry Lahti, Bryan Ulrich

    On Feb. 11, 2005, more than 20 mining professionals gathered in Elko, NV for a day-long round-table discussion on heap leaching. Attendees included project managers, operators and environmental profe

    Jan 1, 2005