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  • SME-ICGCM
    Influence of a Coal Mine Subsidence on An Adjacent Dam

    By Nengxiong Xu

    The WTZ coal mine is located adjacent to an auxiliary dam in P. R. China. The mining-induced ground movements are calculated using a 3-D numerical procedure based on the finite difference method (FDM)

    Jan 1, 2013

  • TMS
    Chemical Enrichment of Precious Metals in Iron Sulfides Using Microwave Energy

    By Bowen Li, Matthew D. Andriese, Jiann-Yang Hwang, Zhiwei Peng

    "Magnetic iron sulfide ore particles heat rapidly by microwave (MW) irradiation generating plasma during oxidation of surfaces. The high temperatures produced by the exothermic event decompose local p

    Jan 1, 2013

  • SME-ICGCM
    Barrier Pillar Design for Safe and Productive Longwall Mining

    By Stephen C. Tadolini

    Effective barrier pillar design is an essential component for safe and productive underground coal mining. Barrier pillar design methodologies that incorporate sound engineering judgment have been use

    Jan 1, 2013

  • SME
    Organic Petrology Applied To Study Of Thermal History And Organic Geochemistry Of Igneous Contact Zones And Ore Deposits In Sedimentary Rocks

    By Neely H. Bostick

    The primary and secondary organic matter in sedimentary rocks changes markedly when it becomes heated as a consequence of thick sediment accumulation and normal geothermal gradients, high geothermal g

    Jan 1, 2013

  • SME
    Wet Mining Offers Huge Potential; Interest In Near And Offshore Mining On The Rise

    Unlike traditional mining on land or ?dry? mining, relatively little is known of ?wet? or offshore mining within the industry. However, dredge mining has several benefits over dry mining, including hi

    Jan 1, 2013

  • SME-ICGCM
    Validation of Entry Stability Factors Determined By the Strength Reduction Method Against Empirical Approaches

    By Gabriel S. Esterhuizen

    The design of support for underground excavations is a complex process in which the interaction between supports and the rock mass must be evaluated. The strength reduction method (SRM) is useful beca

    Jan 1, 2013

  • SME
    Ontario Remains Mining Hotbed; Favorable Legislation And Ring Of Fire Offer Promising Future

    Mining is big business in Ontario. The province is Canada?s leading mining region. It consistently ranks among the top 10 jurisdictions worldwide for exploration spending, reaching about C$1 billion

    Jan 1, 2013

  • SME
    Rosemont Copper Eyes Final Permits; Major Mining Project Nears Final Stage Of Process

    By William Gleason

    With more than 20 major mines extracting copper, gold, coal, molybdenum and lime, Arizona is recognized as one of the better mining jurisdictions, not just in the United States, but in the world. Ho

    Jan 1, 2013

  • CIM
    Time Domain Reflectometry Measurements of Oil Sands Tailings Water Content: A Study of Influencing Parameters

    By A. R. Sorta, D. C. Sego

    ABSTRACT Temperature, solute, texture, and thixotropic effects on time domain reflectometry (TDR) measurements of water content in oil sands tailings are investigated. Results indicate that TDR water

    Jan 1, 2013

  • SME-ICGCM
    Three?Dimensional Ground Stability Study Around a Mine Tunnel in a Highly Discontinuous Rock Mass under Significant in Situ Stress

    By Pinnaduwa H. S. W. Kulatilake

    To exploit an underground mine effectively and safely, it is important to have a good understanding of the geotechnical behavior of the rockmass surrounding the underground mine excavation. The aim of

    Jan 1, 2013

  • CIM
    Methodology for Quantifying Uncertainty Versus Data Spacing Applied to the Oil Sands

    ABSTRACT The inevitable uncertainty in modelling spatial variables decreases as more data become available. This reduction depends on the properties of the variable being modelled. Spatially continuou

    Jan 1, 2013

  • ISEE
    Journal: Blastserve, Look for the New Online Blasters Forum!

    Blastserve, ISEE’s Listserve is being replaced by our new Blasters Forum-online, an exclusive member benefit. Our goal is to provide an ISEE forum for you to network with your peers and exchange techn

    Jan 1, 2013

  • CIM
    Maximising Concentrate Revenues at the Xstrata Copper Kidd Concentrator

    By G. R. Morin, A. R. Leggett

    "In 2010, closure of the Kidd metallurgical plants along with structural changes to the historical ratios of payable metals led to a review of the operating targets at the Kidd concentrator. Previous

    Jan 1, 2013

  • SME-ICGCM
    Instrumentation of a Roof Bolter Machine for Void Detection and Rock Characterization

    By Soheil Bahrampour

    Void detection and identification of bed separation while drilling holes in rocks for roof bolting can be a great source of information for the evaluation of ground conditions and adjustment of ground

    Jan 1, 2013

  • SME-ICGCM
    Development of CAN Manipulator

    By Brian E. Perrine

    Underground mining requires a variety of specialized equipment. With ever-changing mining conditions and methods, some mines have had to resort to purchasing existing industrial equipment and adapting

    Jan 1, 2013

  • ISEE
    Assessing Explosives Competence in the Workplace

    By Denise Clarke

    Homeland Security Qualifications (HSQ) personnel were instrumental in developing the UK’s suite of Explosive Substances and Articles (ESA) National Occupational Standards (NOS) (also known as "compete

    Jan 1, 2013

  • SME
    Construction Starts On The New Semmering Base Tunnel

    In April 2012, work started on one of the most ambitious construction projects of Austria?s ÖBB-Infrastruktur AG ? the New Semmering Base Tunnel. Scheduled for completion in 2024, the 27.3 km (17 mile

    Jan 1, 2013

  • CIM
    Comparison of Uranium Solvent Extraction Strip Options

    By Deon van Tonder, Chuck Edwards

    "Solvent extraction is used in many acid leach uranium circuits to upgrade and purify the uranium bearing solution prior to final product precipitation. A number of strip options are available to reco

    Jan 1, 2013

  • SME
    Geology And Geochemistry Of The Leadville District, Colorado

    By T. B. Thompson

    The Leadville District has been a prominent metal producer since its discovery in 1860. Veins and replacement bodies both have contributed to district production. The latter have been the major metal

    Jan 1, 2013

  • DFI
    Mansueto Library: Drama below Ground and Above

    By Patrick J. Lydon, Gregory A. Terri

    "The recently opened Mansueto Library at the University of Chicago campus was a 2012 OPA runner-up. The dramatic elliptical shaped dome of this structure tells only part of this structure’s story. The

    Jan 1, 2013