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  • SME-ICGCM
    Remote Detection Of Abandoned Mine Workings Using Radio Imaging Method Techniques

    By James G. Schotsch

    Unmapped abandoned mines are hazards for under¬ground mines, surface mines and surface structures. The Radio Imaging Method (RIM) provides a cross borehole technique to remotely detect abandoned mine

    Jan 1, 1990

  • SME-ICGCM
    Economic Evaluation Of Subsidence Damage Mitigation Techniques

    By David C. Johnson

    Coal mining in Illinois has resulted in many structures being exposed to subsidence damage. Damage mitigation techniques (DMT) applied in the foundation design/construction have proven successful in m

    Jan 1, 1993

  • SME-ICGCM
    Gateroad Support in the Czech and Polish Coal Mining Industry - Present State and Future Developments

    By Stanislaw Prusek

    The present state of Czech and Polish coal mining industry is presented at the beginning of the article. This paper will inform the reader of the general data concerning hard coal reserves? number of

    Jan 1, 2011

  • SME-ICGCM
    Application of Microseismic Monitoring to Longwall Geomechanics and Safety in Australia

    By Xun Luo

    In this paper we report on the use of microseismic monitoring techniques to investigate the fracturing process associated with longwall mining. The study was carried out at three mines in Australia an

    Jan 1, 1998

  • SME-ICGCM
    Prevention. Control and Management of Coal and Gas Outbursts

    By Lu Jiam Zhang

    Coal and gas outburst is one of the serious natural disasters in the coal mines of China. Since 1950, more than 10,000 coal or gas outbursts have occurred in more than 200 underground coal mines of di

    Jan 1, 1987

  • SME-ICGCM
    Application of Stress, Geologic, and Support Design System (Sgssm) to Ground Control for Mine Slope Entries

    By John Stankus

    Accurate evaluation of stress and geological conditions is critical to ground control design in underground openings. For a mine slope entry, the problem becomes more complicated because a slope trans

    Jan 1, 2011

  • SME-ICGCM
    Electromagnetic Seam Wave Mapping Of Roof Rock Conditions Across A Longwall Panel

    By Larry Stolarczyk

    The mining industry would benefit greatly by imaging geologic conditions well in advance of mining. In layered deposits such as coal, trona, quartz, and potash, natural waveguides form and enable elec

    Jan 1, 1999

  • SME-ICGCM
    Measurement Of Structural Deformation And Tilt During Subsidence

    By Revendra Awasthi

    The application of a horizontal inclinometer and a tiltmeter to measure tilt, curvature, and deformations of shallow footings during mine subsidence is described. The measurements were taken during mi

    Jan 1, 1990

  • SME-ICGCM
    New Methods and Technologies of Roofbolting in Australia Coal Mines

    By Mictck Rataj

    Methods of rock reinforcement in Australian coal mines are being advanced progressively through the better understanding of rock failure mechanisms around roadways and the-development of improved bolt

    Jan 1, 1997

  • SME-ICGCM
    The Impact Of Variability In Coal Strength On Mine Planning And Design - A Case History

    By David A. Newman

    Strength and physical property testing of coal is conducted regularly by the Arch Mineral Corporation as part of reserve exploration. Pillar design and mine layout are the primary applications for the

    Jan 1, 1993

  • SME-ICGCM
    Influence of joints on the elastic response of a LFUFL stope to FEM mining

    By W. G. Pariseau

    A new approach to the direct inclusion of the effects of joints and geologic structure in rock mechanics analyses is applied to an elastic analysis of stability of a Lucky Friday undercut and 4111 lon

    Jan 1, 1989

  • SME-ICGCM
    Geotechnical Planning Basis for the Optimization of Workings

    By Nikolaos Polysos

    Besides considering the given geomechanical conditions, the geological/geotechnical logging of drill cores and heading faces during the driving of parallel entries and the resulting rock classificatio

    Jan 1, 2003

  • SME-ICGCM
    Statistical Regional Calibration Of Subsidence Prediction Models

    By D. N. Cleaver

    Like other influence function methods, the SWIFT subsidence prediction program, developed within the Mineral Resources Engineering Department at the University of Nottingham, requires calibration to r

    Jan 1, 1995

  • SME-ICGCM
    Prediction And Control Of Surface Subsidence Over Abandoned Mined Lands In Carbonia (Italy)

    By Pier Paolo Manca

    The investigated area lies close to a large town and covers an area of about lkm2. The mine was worked at depths ranging from 5 to 100 meters but mining operations actually ceased some 50 years ago. T

    Jan 1, 1999

  • SME-ICGCM
    Methods of Controlling Hard Roof in a Longwall Face

    By Linsheng Xu

    When coal seam is under the integral thick sandstone (or conglomerate), the structure of thick sandstone is integral and its strength is rather high. After coal is extracted, the roof is hanging and c

    Jan 1, 1986

  • SME-ICGCM
    Application Of A Static And Geophysical Monitoring System For Detection Of Stability Problems

    By Maleki. Hamid

    The U.S. Bureau of Mines implemented an inte¬grated static and geophysical monitoring program in a southern Wyoming mine to study changes in seismic wave propagation properties in roof strata. The pur

    Jan 1, 1993

  • SME-ICGCM
    Longwall Stability Analysis Of A Deep, Bump-Prone Western Coal Mine-Case Study

    By Lance R. Barron

    The U.S. Bureau of Mines, in cooperation with a central Utah coal .mine operator, began a study in July 1988 into longwall gateroad designs applicable to deep, bump- prone mine conditions. Prior to th

    Jan 1, 1990

  • SME-ICGCM
    Rehabilitation of Underground Surge Bunker Following Massive Rib Wall Failure

    By Rob Robinson

    Following a massive rib wall failure along the reclaim belt of the large underground surge bunker at CONSOL?s Bailey Mine, a multifaceted, cleanup and rehabilitation effort was initiated to rapidly st

    Jan 1, 2007

  • SME-ICGCM
    Critical Appraisal Of Pillar Design As Required By Coal Mines Regulations Of India VIS-VIS Latest Rock Mechanics Formulae

    By S. K. Sharma

    The present study attempts to critically review the pillar-design as required by Coal Mines Regulations of India vis-a-vis latest rockmechanics formulae, Equivalent material modelling was the approach

    Jan 1, 1992

  • SME-ICGCM
    Aerostatic Support System For Underground Coal Mines

    By R. J. Morrell

    The Bureau of Mines developed a ground support system for use with an underground coal auger. The system consists of inflatable airbags that are inserted in the holes as they are drilled, and then gra

    Jan 1, 1988