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  • SME-ICGCM
    Historical Perspective And Future Projection Of Longwall Mining In The United States (19eaaffe-326c-46a4-9a81-dc104b2df560)

    By Thomas M. Barczak

    This report chronicles the historical development of longwall mining in the United States and speculates on future developments to the turn of the century. Five eras of technological development durin

    Jan 1, 1992

  • SME-ICGCM
    Subsidence prediction using a laminated linear model

    By Miklos D. G. Salamon

    If all stratifications are horizontal, the computation of surface deformation induced by coal mining involves the prediction of roof and floor convergence and then the transfer of the effects of this

    Jan 1, 1989

  • SME-ICGCM
    Impact Of Vertical Stress On Roadway Conditions At Dartbrook Mine

    By Ken Mills

    A program of stress change and roadway deformation monitoring was undertaken to measure the forward abutment load distribution about a retreating longwall panel at Dartbrook Mine. The results of this

    Jan 1, 2000

  • SME-ICGCM
    Evaluating Coal Pillar Mechanics Through Field Measurements (a8e6d7f0-5b83-40bc-b63c-ddaae2b3a526)

    By Anthony Iannacchione

    Designing coal pillars to provide resistance against overburden loads has long been an aim of rock mechanics engineers. The need for accurate pillar strength models has become more urgent as greater o

    Jan 1, 1992

  • SME-ICGCM
    Using Ground Penetrating Radar For Roof Hazard Detection In Underground Mines

    By G. M. Molinda

    Ground Penetrating Radar (GPR) is being investigated for the potential to determine roof hazards in underground mines. GPR surveys were conducted at four field sites with accompanying ground truth in

    Jan 1, 1996

  • SME-ICGCM
    Coal Mine Safety in China and Degasification of Longwall Panel Using In-Seam Directional Drilling Technology

    By John Feddock

    A recent increase in energy demand has resulted in the rapid growth of coal consumption in the People?s Republic of China (PRC), which is the largest coal producer and consumer in the world. Reported

    Jan 1, 2007

  • SME-ICGCM
    Sizing Of Final Stumps For Safer Pillar Extraction

    By Christopher Mark

    Pillar recovery continues to be one of the more hazardous activities in underground coal mining. Safety requires that the roof above the intersection remain stable until after the pillar has been extr

    Jan 1, 2001

  • SME-ICGCM
    A Casting Method For Artificial Rock Specimens

    By Da Zhao Gu

    An important problem in rock engineering is to control the properties of artificial rock. A compaction technique for casting artificial rock specimens with controlled properties is described, i.e. usi

    Jan 1, 1992

  • SME-ICGCM
    Seismic Studies Over Active Longwall Mines

    By Thomas H. Wilson

    Common offset and refraction seismic data have been collected over four longwall panels at two different locations within West Virginia. Surveys prior, during and after mining were made in both areas.

    Jan 1, 1988

  • 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
    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
    Roof Control In Longwall Faces - Geological And Geotechnical Characteristics And IT Solution For Prediction (50d59152-95b6-444a-a8f2-4ae0c4262f3f)

    By Holger Witthaus

    Various seam conditions had been examined during longwall production at RAG German hard coal mines. Based on the field data a prediction method was developed considering separation planes as influenci

    Jan 1, 2009

  • SME-ICGCM
    The Development and Application of Polyurethane Injectable Cable Bolts

    By Dakota D. Faulkner

    Cable bolts have been very effective in mine ground control. Non-tensioned and tensioned cable bolts are now used for both primary and supplemental bolting (Suder, 2001; Mirabile, 2010). In the United

    Jan 1, 2012

  • SME-ICGCM
    A Method for Sizing Longwall Pillars Based on Field Measurements

    By Christopher Mark

    A new method for the design of longwall pillars, called "Analysis of Longwall Pillar Stability" (ALPS), is described. The method is the final result of a research program that included two major field

    Jan 1, 1987

  • SME-ICGCM
    Longwall Shield Recovery Using Mobile Roof Supports (64264c53-830d-4e84-b91e-78532103884a)

    By Frank Chase

    Longwall mining has gained the reputation as being the safest extraction method in underground coal mines. However, one of the most difficult tasks associated with longwall mining is moving the face

    Jan 1, 2007

  • SME-ICGCM
    The Investigation Of The Rock Mass Stressed-Deformed State Under The Conditions Of Floating Earth Presence In The Roof Of The Level Working

    By V. Bondarenko

    The forecasting of floating earth inrush into the working is to a great extent connected with the investigation of the rock mass stressed-deformed state around the working. The aim of such investigati

    Jan 1, 1996

  • 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

  • SME-ICGCM
    Geology, Ground Control, and Mine Planning at Bowie Resources, Paonia, CO

    By Collin Stewart

    Bowie Resources maintains one of the most pro-active ground control programs in the U.S. mining industry today. Its guiding philosophy is that everyone in the organization, from the miners at the fac

    Jan 1, 2006

  • SME-ICGCM
    Applications Of New Technologies To The Technical Design And Monitoring Of Longwall Panels

    By Brad R. Blair

    This paper will review impacts on longwall design and ground stability assessment due to advances in mine automation and sensing technology. Several new approaches to the prediction and monitoring of

    Jan 1, 1996

  • SME-ICGCM
    Geomechanic Monitoring And Distributed Information Systems

    By G. I. Gritsko

    In this paper we consider the elements of a distributed information geomechanic monitoring system which is used in computerized mine planning and mining operations control. The automated system is a t

    Jan 1, 1996