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  • 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
    Geotechnical Mapping By Seismic Imaging In Underground Mines

    By W. J. Mcgaughey

    A crosshole seismic imaging (tomography) experiment has been carried out in an underground mine in order to delineate waste rock within a massive sulphide ore body. Data comprising 1526 travel time me

    Jan 1, 1989

  • SME-ICGCM
    Subsidence and Uplift Prediction in German and Polish Hard Coal Mining

    By Axel Preusse

    For the last 150 years, subsidence damage to the surface has been an unavoidable phenomenon associated with underground coal mining. In particular, the mechanization of mining methods in multiple seam

    Jan 1, 2012

  • SME-ICGCM
    Field Experience Of Measuring The Acoustic Energy From A Hammer Blow To Coal Mine Roof And Its Relationship To Roof Stability

    By Peter Altounyan

    The rate of decay of the energy from a hammer blow to a coal mine roof is related to the size and nature of the contacts between the rock being struck and its surroundings The use of this principle as

    Jan 1, 2000

  • SME-ICGCM
    Comparative Study Of Western US Longwall Panel Entry Systems

    By Khamis Y. Haramy

    This paper summarizes ground control studies of longwall panel entry systems in two Western U.S. coal mines. Presented are comparisons of in situ pressure change measurements and assessments of chain

    Jan 1, 1989

  • SME-ICGCM
    Premining Stability Analysis Of A Shaft Pillar At The Homestake Mine

    By J. C. Johnson

    High-grade ore found in a shaft pillar at the Homestake Mine prompted a request for a Bureau of Mines study to determine if selected areas of the shaft pillar could be mined without jeopardizing the s

    Jan 1, 1989

  • SME-ICGCM
    Roof Falls: An Inherent Risk In Underground Coal Mining (656e7541-42e3-48b1-8edc-4e23e6c7b7b1)

    By Kourosh Shahriar

    The occurrence of rock falls in underground coal mines entails detrimental effects as fatal or non-fatal injuries on workers, stoppages in mining operations and breakdown of equipment. In this paper,

    Jan 1, 2009

  • SME-ICGCM
    Improving Design Methodology For Innovative Rock Mechanics Design

    By Dwayne C. Kicker

    This paper introduces the concept of design theory and methodology as applied to rock mechanics for more innovative and efficient design. This is a "frontier" research area in rock mechanics because a

    Jan 1, 1989

  • SME-ICGCM
    Understanding the hydraulic pressure cell

    By Keith A. Heasley

    Numerous different instruments and techniques have been developed for the purpose of measuring rock stress and stress changes around excavations. The interpretation of the output from many of these in

    Jan 1, 1989

  • SME-ICGCM
    Stability of Slopes in Discontinuously Jointed Rock (4d3fd7d1-f3a8-44f5-b86c-03d96a9b1123)

    By T. M. Tharp

    Attempts to analyze the stability of slopes, foundations and underground openings in discontinuously jointed rock have generally assumed full joint continuity or ignored the role of stress concentrati

    Jan 1, 1984

  • SME-ICGCM
    Three-dimensional FEM analysis to sale field measurements from deep mine accessways

    By M. J. Beus

    A shaft is truly the "lifelinen of an underground mine. Damage to the shaft lining and guides as a result of ground movement can result in serious loss of production and extensive and continual repair

    Jan 1, 1989

  • SME-ICGCM
    Pillar Strength and Design Methodology for Stone Mines

    By Gabriel Esterhuizen

    Underground stone mines in the United States make use of the room-and-pillar method of mining. A prerequisite for a safe working environment is that the pillars should adequately support the overburd

    Jan 1, 2008

  • SME-ICGCM
    A Case History of the Effect of Mine Subsidence on a Concrete Arch Bridge in Northern West Virginia

    By R. B. Alke

    Request to Mine Beneath Bridge The Jabs Run Bridge is a reinforced portland concrete arch filled bridge located on WV Bouts 7 near Pentress, WV. The bridge has a span of 22.9 m (meters) and a height o

    Jan 1, 1984

  • SME-ICGCM
    Mine Stability Evaluation From Microseismic Activity (5cc6a13d-fd4e-4c74-a7d1-2213b7f2a1da)

    By Brian R. A. Wood

    Any defect activity resulting from an applied stimulus on a structure will generate a stress wave which travels in the medium under the laws of acoustics, thus the name of acoustic emission (AE). AE t

    Jan 1, 1992

  • SME-ICGCM
    An Overview Of The National Roof Evaluation Accident Prevention (REAP) Program

    By J. M. Krese

    This paper gives an overview of the National REAP program emphasizing the program's current status and future plans. A brief historical review of the program will be given containing roof-fall ac

    Jan 1, 1988

  • SME-ICGCM
    Finite element analysis and comparison of shaly mine roof support systems

    By K. F. Unrug

    In the paper a numerical modeling method is used for evaluation of a roof support system, which is commonly used in the US coal industry. The effectiveness of mechanical roof bolting with or without,

    Jan 1, 1989

  • SME-ICGCM
    Investigating Abutment Load

    By Ihsan Berk Tulu

    In the Analysis of Retreat Mining Pillar Stability (ARMPS) program, the magnitude of the abutment loading adjacent to a gob area is calculated using an ?abutment angle? concept. The extent of the abut

    Jan 1, 2012

  • SME-ICGCM
    An Integrated Approach To Subsidence Modelling And Prediction In The Collie Coal Basin (Western Australia)

    By Ian Misich

    A research programme has been undertaken to evaluate and predict the effect of total extraction of coal by underground methods on the superimposed strata, aquifer systems and ground surface in the Col

    Jan 1, 1993

  • SME-ICGCM
    Dynamic rock anchors

    By James J. Scott

    Dynamic rock anchors are interior fixtures developed by the author which promise to be a revolutionary development in the field of ground control. The fixtures are designed to be placed in the ground

    Jan 1, 1989

  • SME-ICGCM
    Direct determination of failure surfaces in earth slopes

    By S. L. Huang

    The location and shape of potential failure surfaces in soil slopes were directly determined based on the stresses induced in the soil mass and the strength of the soil itself. Stress calculations wer

    Jan 1, 1989