Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SME-ICGCM
    Roof Screening for Underground Coal Mines: Recent Developments (45f180e8-0601-41d7-bc8b-2e9de87bd46d)

    By Craig Compton

    Falls of small pieces of rock from between roof bolts continue to cause fatalities and to injure hundreds of coal miners each year. Roof screen is the most effective way to prevent these incidents,

    Jan 1, 2007

  • SME-ICGCM
    Cost Preventive System To Control Unstable Roof In Main Line Haulage Entries

    By John Popovich

    The MICON RokLok binder system including component and consolidation processes and safety and its first aide are described. The implementation procedures and selection of injection parameters are disc

    Jan 1, 2001

  • 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
    Design and Performance of a Longwall Coal Mine Water-Barrier Pillar

    By Francis Kendorski

    The Skyline #3 Mine of Canyon Fuel Company in Utah was planning longwall mine development adjacent to and downdip of older mine workings known to be flooded. Barrier pillar geometries and widths were

    Jan 1, 2007

  • SME-ICGCM
    Empirical Mine Design for Western Underground Metal Mines

    By Thomas M. Brady

    The Spokane Research Laboratory/NIOSH and the University of British Columbia (UBC) geomechanics group are focusing on the development of safe and cost-effective underground design guidelines for weak

    Jan 1, 2006

  • SME-ICGCM
    Application of Electrohydrodynamic Method and High-Pressure Water Jets as Non-Blasting Alternative of Rock Breaking and Splitting in Open Pits

    By Krzysztof Kotwica

    The steady demand for rock materials leads not only to on increase in mining but to the need for decreasing the loss of material in the process of exploitation as well. It brings about an increase in

    Jan 1, 2006

  • SME-ICGCM
    Ground Control and Safety Implications of Blast Damage in Underground Mines

    By Stephen Iverson

    The National Institute for Occupational Safety and Health (NIOSH) is currently performing research to help mine operators minimize the amount of loose or damaged rock surrounding a blasted opening. I

    Jan 1, 2007

  • SME-ICGCM
    Effect of Roof Convergence on Stability of Underground Mine Seal Subjected to Explosion loading - Numerical Approach

    By Rajagopala Reddy Kallu

    After the Sago and Darby No. 1 mine incidents, the new regulatory standards for the design of mine seals in underground coal mines of the United States require the mine seals to withstand higher explo

    Jan 1, 2007

  • SME-ICGCM
    In-Situ Tests and Numerical Simulation about the Effect of Annulus Thickness on the Resin Mixture for Fully Grouted Resin Bolt

    By Andre Zingano

    The objective of this paper is to study the effect of annulus thickness on the quality of resin mixture for fully grouted resin bolt. Pullout and mixture tests were made in underground coal mines for

    Jan 1, 2008

  • SME-ICGCM
    Stability Mapping To Examine Ground Failure Risk: A Field Study At A Limestone Mine (b0d73e07-1fdd-41b0-ab9e-b3e15e89a17e)

    As the surface reserves are being depleted, more and more stone operators are seeking underground mining options. Stability of underground openings is a major concern for the safety and productivity.

    Jan 1, 2009

  • SME-ICGCM
    A Roof Quality Index For Stone Mines Using Borescope Logging

    By John Ellenberger

    The National Institute for Occupational Safety and Health (NIOSH) has collected pillar and span data at 34 stone mines in 10 states to develop pillar and roof span design guidelines for underground st

    Jan 1, 2009

  • SME-ICGCM
    Comparison of the Performance of Active and Passive Roof Bolts in An Illinois Basin Coal Mine

    By Anil K. Ray

    This paper discusses in situ studies conducted at an Illinois Basin room-and-pillar coal mine to evaluate the performances of three different types of bolts under similar geologic conditions. The bolt

    Jan 1, 2012

  • SME-ICGCM
    Coal-Mining-Induced Seismicity in Utah?Improving Spatial Resolution Using Double-Difference Relocations

    By Kristineq Pankow

    The August 2007 Crandall Canyon mine disaster raised national awareness of mining-induced seismicity (MIS) in Utah as well as general interest in how seismic monitoring might improve mine safety in th

    Jan 1, 2008

  • SME-ICGCM
    Techniques To Investigate Subsidence Events Over Inactive Room-And-Pillar Mines (f8b483c2-2524-4334-950b-cd6315d7aeaa)

    By Yi Luo

    Subsidence events occurred over inactive room and pillar (R&P) mines, including abandoned mines or sealed portions of active mines, are classified as unplanned subsidence because of their timing and d

    Jan 1, 2009

  • SME-ICGCM
    A Resin Quality Testing Procedure for Collieries

    By D. Minney

    The quality of resin used in South African collieries is currently controlled according to South African Bureau of Standards, "SABS-1534:2002". It has however been found that resin which passed the SA

    Jan 1, 2005

  • SME-ICGCM
    The Forensics Of Underground Roof Falls (c5c31282-77d4-44b1-8aa1-d01534eb267d)

    By Steve Tadolini

    Underground roof falls can have devastating effects on the safety of operations personnel, and equipment, and seriously impact production. Immediate steps are usually taken to danger off and secure t

    Jan 1, 2009

  • SME-ICGCM
    Beyond Coalbrook: Critical Review of Coal Strata Control Developments in South Africa

    By J. Nielen van der Merwe

    Rock engineering research and technology development in South Africa only received serious attention in reaction to the Coalbrook disaster in 1960. At the time, a number of gaps in knowledge of rock r

    Jan 1, 2006

  • SME-ICGCM
    Towards an Improved Stone Mine Pillar Design Methodology: Observations from a Mistake

    By Francis Kendorski

    The mining engineering design professional has limited practical and reliable tools for planning successful room-and-pillar stone mines using readily-available and collectible information. Three tech

    Jan 1, 2007

  • 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
    The Estimation of Ground Control Risk By Real?Time Quantitative Visual Assessments

    By Alexander Garcia

    Roof and rib falls are the basic ground control hazards associated with underground roadways during development, stand up and, if applicable, retreat. Falls of ground can happen following the deterior

    Jan 1, 2012