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  • SME
    The Utilization Of Coarse Pre-Concentration Rejects In The Preparation Of Underground Backfills At Xstrata Nickel?s Ontario Operations

    By T. Weatherwax

    As part of a strategic research initiative at UBC to design and evaluate integrated underground mining and mineral processing systems, work has been done to determine how to utilize the coarse rejects

    Jan 1, 2008

  • SME
    IntelliMine - Innovative technologies and concepts for the sustainable and intelligent Deep Mine of the future

    By H. Hejny

    "The mine of the future will exploit mineral raw materials at greater depths than today, requiring completely different approaches compared to today’s deep mines, in order to get mineral rights. Only

    Jan 1, 2011

  • SME
    Effect of Operating Parameters on the Breakage Process of Calcite in a Stirred Media Mill Mining, Metallurgy and Exploration

    By Diler Katircioglu-Bayel, Oner Yusuf Toraman, Safak Gokhan Ozkan

    One of the most energy-intensive processes for producing submicron range calcite is stirred media mill. In the present work, numerous operating parameters such as solid mass fraction, grinding media s

  • SME
    Multi-Gravity Separator: An Alternate Gravity Concentrator To Process Coal Fines

    By A. K. Majumder

    The multi-gravity separator (MGS) is a novel piece of equipment for the separation of fine and ultra-fine minerals. However, the published literature does not demonstrate its use in the separation of

    Jan 1, 2007

  • SME
    An Innovation Of Practical Underground Stope Design Optimization And Cut-Off Grade Calculation

    An incremental analysis based stope design optimization method was developed at Exodus, an underground project located 30 miles north of Carlin, Nevada. Traditional underground stope design methods, b

    Jan 1, 2012

  • SME
    Preliminary Design of the Caldecott Fourth Bore

    By Bhaskar B. Thapa, Michael T. McRae, Johannes V. Greunen

    This paper describes the preliminary design of the fourth bore of the Caldecott Tunnels along State Route 24 in Oakland, California. The paper focus is on two major aspects of the project: initial sup

    Jan 1, 2007

  • SME
    Economic Decision-Making For Methane Drainage Systems For Underground Coal Mines – Preprint 97-157

    By J. M. Mutmansky, A. Wang

    This paper defines the elements of a basic economic model for decision-making when considering a methane drainage system for an underground coal mine. A drainage system will require significant capita

    Feb 24, 1997

  • SME
    Nation Needs More Coal-Fired Plants, National Coal Show Attendees Told

    By Steve Kral

    A few months ago, Congress passed, and President Bush signed, a national energy bill. Designed to decrease the nation’s dependence on foreign sources of energy, the bill earmarked several billion dol

    Jan 1, 2005

  • SME
    Recent Advances In Coal Spiral Development – Preprint 97-82

    By W. S. Weldon, R. M. G. Machunter

    The use of spiral separators for the beneficiation of fine coal typically in the size range - 2+0.lmm is now well established process technology. Developments during the mid 1980's resulted in th

    Feb 24, 1997

  • SME
    Sustainability For Nature And Mankind

    By M. Javier

    Defining the concept of sustainability is an important step for industry and society. It is necessary in order to clarify what it means when debunking the many misinterpretations pervasive in differe

    Jan 1, 2012

  • SME
    Pumpable Roof Supports: An Evolution In Longwall Roof Support Technology (aa067599-8739-4939-97db-53d31f797a34)

    By T. M. Barczak

    Pumpable roof supports provide an alternative approach to secondary support in underground mining. Unlike all other supports that are either partially or fully prefabricated prior to being transporte

    Jan 1, 2008

  • SME
    Pre-Failure Pillar Yielding

    By J. F. T. Agapito, R. R. Goodrich

    Yield pillars have been used for many years to help reduce stresses near mine openings and improve roof and floor stability. A yield pillar is often defined as a pillar that fails but retains residual

    Jan 1, 2001

  • SME
    Non-Invasive Exploration In An Environmentally Sensitive World

    By K. E. Livo, D. H. Knepper

    Modern remote sensing provides a means for locating and characterizing exposed mineralized systems in many parts of the world. These capabilities are non-invasive and help target specific areas for mo

    Jan 1, 2004

  • SME
    Control Of Surface Movements Above Active Coal Mines In Appalachia

    By A. Jarosz

    The surface manifestation of underground mining usually entails five distinct types of surface movements, which can affect or damage surface structures, facilities and renewable resources. These m

    Jan 1, 1986

  • SME
    Chunnel Repairs Call On Conjet Hydrodemolition Robots

    Train services through the Channel Tunnel linking Britain and France where scheduled to be fully restored in February 2009 following several months of repairs after a major fire in the tunnel on Sept.

    Jan 1, 2009

  • SME
    A simplified approach to coal mine seal design

    By M. M. Gadde

    Recent regulatory changes in the United States make it mandatory to conduct structural analysis of coal mine seals used to isolate abandoned workings from active mining areas. Different loading criter

    Jan 1, 2009

  • SME
    Technical Note - Increased value of refined high sulfur coal

    By P. R. Dugan

    Sulfur removal from high sulfur coal has several objectives including: a) reduction of the atmospheric load that contributes to the problem of acid precipitation; b) reduction of ash, which contribute

    Jan 8, 1987

  • SME
    Mine Pillar Design Using the Ground Reaction Curve Concept

    By Ravi Ray, Kostas Kaklis, Zach Agioutantis

    "Modern underground mining is becoming more complex and geotechnically challenging. The engineer uses numerical, analytical, and data-driven methods (empirical and/or experimental) or their combinatio

    Jan 1, 2019

  • SME
    Impact Of Electronic Blasting Detonators On Downstream Operations Of A Quarry

    By G. Caron, M. Boisclair

    In 2005, CANMET-MMSL used its pool of expertise in ground control, open pit and underground mine engineering, mineral processing, information technology and applied mineralogy to launch a mine-to-mill

    Jan 1, 2007

  • SME
    Numerical Evaluation of Tunnel Lining in Visco?elastic creep active ground

    By Kyoosang Yoo

    The report presents the results corresponding to the analysis of a lining system for tunnels in soil and soft rock in creep-active ground. The purpose of the analysis is to evaluate the performance of

    Jan 1, 2010