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  • SME-ICGCM
    Analysis Of Rockbolt Performance At The Waste Isolation Pilot Plant

    By Liane J. Terrill

    Rockbolt failures at the Waste Isolation Pilot Plant have been recorded since 1990 and are categorized in terms of mode of failure. The failures are evaluated in terms of physical location of installa

    Jan 1, 1995

  • SME-ICGCM
    Using Major Hazard Risk Assessment to Appraise and Manage Escapeway Instability Issues: A Case Study (d1d3dd49-2f0a-44af-8ddf-69de3f441c2d)

    By Anthony Iannacchione

    A Major Hazard Risk Assessment (MHRA) was developed in Australia after a series of mine disasters in the 1990?s. A MHRA is used to help prevent major hazards, i.e. fire, explosion, wind-blast, outbur

    Jan 1, 2007

  • SME-ICGCM
    Relocating Mining?Induced Seismicity at the Trail Mountain Mine

    By Meagan S. Boltz

    From October 2000 to April 2001 a local array of fourteen seismograph stations was deployed at the Trail Mountain Mine (TMM), an underground coal mine in Emery County, Utah, to locate mining-induced s

    Jan 1, 2012

  • SME-ICGCM
    Innovation in Rock Mechanics: Iced Tailings As Structural Backfill for the Citronen Mine, Ironbark Zinc Ltd., Greenland

    By Andrew P. Schissler

    The Citronen Zinc-Lead Project is one of the world?s largest undeveloped zinc-lead resources, containing more than 13 billion pounds of zinc and lead metal. The project is located in northern Greenlan

    Jan 1, 2012

  • SME-ICGCM
    Rock Mechanics And Ground Control For Underground Mining And Construction

    Recent improvements are described in several techniques for ground control in underground mining. Promising methods for analysis and mitigation of rockbursts are discussed. Methods of assessing damage

    Jan 1, 1989

  • SME-ICGCM
    Proposed Laboratory Quality Control Test Method for Resin Capsules Used in Underground Mines in South Africa

    By Dave Minney

    The South African mines health and safety regulations require that mine management establish a quality management system for rock support material. Quality control of resin capsules used as a support

    Jan 1, 2007

  • SME-ICGCM
    Three-Seam Stress Analyses at Bowie Mines, Colorado

    By Hamid Maleki

    In this paper, the authors present a review of data gathering programs and stress analyses for improving mine layout designs at BRL mines located near Paonia, Colorado. BRL and other companies have

    Jan 1, 2007

  • SME-ICGCM
    Cable Bolting with Low Air Power ? A Solution?

    By Matt Leeming

    Several of the underground mines in the UK require a significant number of cable bolts to be installed, remedially, to control worsening roadway conditions. Often the access is limited and the only po

    Jan 1, 2007

  • SME-ICGCM
    Proposed Criteria For Subsidence Damage To Buildings (d2ee0f1e-295b-4fb1-ab17-d19f1e17df4a)

    By Swapan Bhattacharya

    United States federal and state regulatory authorities require underground mine operators to adopt adequate measures to minimize material damage to the surface caused by nine subsidence. This paper pr

    Jan 1, 1984

  • SME-ICGCM
    Pillar Stability Issues Based on a Survey of Pillar Performance in Underground Limestone Mines (08bccb54-5d4b-443a-860e-90b5a6841ec3)

    By Gabriel S. Esterhuizen

    A survey of pillar conditions was carried out at 21 operating limestone mines that use the room-and-pillar method. The surveyed pillars were all located in rock that was classified as ?Good? to ?Very

    Jan 1, 2006

  • SME-ICGCM
    The Next Generation of Cable Bolts for Improved Ground Support

    By Stephen C. Tadolini

    PC-Strand tendons, commonly referred to as cable bolts, have become a major rock reinforcement device for underground mining and civil applications. The most common configuration is a 1+6 strand, whic

    Jan 1, 2012

  • SME-ICGCM
    Correlation Between Unconfined Compressive And Point Load Strengths For Appalachian Rocks

    By Luis E. Vallejo

    The strength measured by the uniaxial compression test is a parameter that is widely used for the engineering classification of rocks. Sedimentary rocks such as shales, however, are difficult to evalu

    Jan 1, 1989

  • SME-ICGCM
    Five Stress Factors Conducive To Bumps In Utah, USA, Coal Mines

    By Joe F. T. Agapito

    High stresses and adverse geology in deep coal mines in the state of Utah, USA, have caused numerous bumps. The larger bumps have been associated with seismic events with Richter magnitudes of 3.6 and

    Jan 1, 2000

  • SME-ICGCM
    Comparison Of Empirical, Analytical, And Numerical Methods Of Pillar Design And The Development Of A Site Specific Pillar Formula

    By Vincent A. Scovazzo

    Many accepted and useful methods have been developed and used for pillar design. Each method has its own particular strengths and weaknesses. Three methods addressed in this paper are; empirical, anal

    Jan 1, 1995

  • SME-ICGCM
    Pillar Design In Bump-Prone Deep Western U.S. Coal Mines (e849bf38-924c-4a19-8729-5910f69616a3)

    By N. P. Kripakov

    This paper presents a brief overview of current bump mechanics theories and pillar design methodologies, and relates these concepts to experiences at two mines located in a north-central Utah coalfiel

    Jan 1, 1992

  • SME-ICGCM
    A Management System to Develop Occupational Health & Safety in Ground Control Operations of Underground Mines

    By Kazem Oraee

    Falls of ground have historically been the main cause for fatalities in underground mines. Although recent advances in technology have reduced the number of such accidents, when failures occur they us

    Jan 1, 2012

  • SME-ICGCM
    Load Transfer Distance Calibration of a Coal Panel Scale Model: a Case Study

    By Mark K. Larson

    Calibration of LaModel for deep coal mines begins with adjustment of overburden stiffness for load transfer distance. This calibration determines whether mining induced stresses are concentrated in th

    Jan 1, 2012

  • SME-ICGCM
    Technique To Measure Resultant Load Vector On Shield Supports (b937ef33-c51b-4de4-a956-dc8be749fea8)

    By Thomas M. Barczak

    The resultant load vector is the representation of the forces applied to a longwall roof support element by caving strata into a single, quantifiable measure of support resistance. The relatively comp

    Jan 1, 1984

  • SME-ICGCM
    Analysis Of Multiple-Seam Interaction In A Bump-Prone Western Coal Mine Using MULSIM/PC

    By D. A. Donato

    It is often necessary for a mining company to extract coal from a seam underlying a previously mined coal seam. The impact of the overlying mine workings on the stress distribution within the underlyi

    Jan 1, 1996

  • SME-ICGCM
    Optimization of the Stress Control Method to Improve Productivity and Safety in Underground Coal Mining

    By Shosei Serata

    The Stress Control Method improves productivity and safety in underground coal mining. The method stabilizes the roofs and floors of mine openings in both shallow and deep coal beds, regardless of whe

    Jan 1, 1986