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  • SME-ICGCM
    Prediction Of Rock Cutting Performance Using Fracture Mechanics Principles - A Review (0b1a12ed-9606-4d46-b68d-eea006d52e76)

    By Gexin Sun

    This paper overviews the recent research progress in predicting cutting performance using fracture mechanics principles. It is emphasised that rock fragmentation due to cutting is mainly a process of

    Jan 1, 1992

  • SME-ICGCM
    Safe Pillar Extraction Practice - Some Geotechnical Principles Based on Australian Experience

    By Bruce K. Hebblewhite

    Underground pillar extraction continues to be practiced in Australia in various forms, in spite of the dominance of the longwall method, which accounts for over 90% of underground production. Australi

    Jan 1, 2011

  • SME-ICGCM
    A Novel Ground Control Program at Plateau Mining Company

    By Hamid Maleki

    A novel ground control program has been developed at Plateau Mining Company through five years of geotechnical investigations. The study was initiated to determine the causes for roof stability proble

    Jan 1, 1987

  • SME-ICGCM
    Evaluating Techniques for Monitoring Rock Falls and Slope Stability (03558dcc-00ee-4336-8044-b80294644df0)

    By Edward McHugh

    While less than 1% of reported accidents are associated with slope stability problems. slope failures were responsible for about 15% of all U.S. surface mine fatalities between 1995 and 2001. Small ro

    Jan 1, 2002

  • SME-ICGCM
    Integrating Ground Control And Mine Site Data Through A Geographic Information System

    By Douglas C. Peters

    Part of the ground control research at the U.S. Bureau of Mines is involved with improving ground control data collection and analysis methods. A geographic information system (GIs) is being used with

    Jan 1, 1990

  • SME-ICGCM
    Microcirculation Theory Analysis Of Spontaneous Combustion Of Loosing Coal In The Top-Coal Caving Region Of Entry

    By Q. F. Wang

    Spontaneous combustion hazard of loose coal in the top-coal caving region of entry affects the safety of the entry and top- caving longwall face seriously. In this paper, by combining on- site tempera

    Jan 1, 2004

  • SME-ICGCM
    Evaluation of Rockburst Hazard from Core Testing

    By Michael Alber

    Coal resource extraction reaches higher depth of overburden and rockbursts as well as associated seismic events appear to become an additional problem to he addressed by ground control engineers. For

    Jan 1, 2004

  • SME-ICGCM
    Monitoring and Prediction of Ground Movements Above Underground Mines in the Eastern United States

    By M. Karmis

    mining factors and representative ground movement parameters. Based on this analysis, the previously developed prediction methods were modified and tested for their applicability in the Appalachian co

    Jan 1, 1987

  • SME-ICGCM
    Comparison Of Multiple And Single Entry Roadways For Highly Stressed Longwalls

    By Klaus Opolony

    The world's most popular method of longwall mining requires multiple entry systems for the panels. In contrast to this mine layout the roadways in German coal mining are used for advanced mining

    Jan 1, 2003

  • SME-ICGCM
    Empirical Approach to Calculate Rock Loads in Coal Mine Roadways

    By Erdal Unal

    In order to define the support parameters, by use of empirical approaches, it is particularly important to analyze the rock-load height that should be controlled by supports. The controlling mechanism

    Jan 1, 1986

  • SME-ICGCM
    Progress In The Knowledge Of Granite Cutting With Diamond Wire (bf80b832-f557-4b46-b5c9-31193e67bf2d)

    By A. Bortolussi

    The paper discusses the state of the progress reached in the development of the diamond wire tool for cutting hard rocks. To the advances of this relatively new technology a substantial contribution h

    Jan 1, 1992

  • SME-ICGCM
    A Possible Alternative To Hardwood Chock Pieces

    By B. G. D. Smart

    The development of a softwood alternative to the hardwood chockpiece used to build the waste-edge breakers commonly incorporated in gateroad packs is described. The results of laboratory tests on soft

    Jan 1, 1992

  • SME-ICGCM
    Influence Of The Sloping Of Ground Surfaces On Mine Subsidence (165d3ebb-e4c1-4bc8-a5e4-409b4e24155c)

    By D. M. Shu

    A two-dimensional finite element modelling technique is applied to predict the subsidence movements on a sloping ground surface above a completely mined panel. The modelling is carried out for the sur

    Jan 1, 1992

  • SME-ICGCM
    Design Aspects In Multiple-Seam Mining: Case Studies

    By Gregory J. Chekan

    Developing a coal seam that has been influenced by previous mining in seams either above or below can result in severe ground control problems. In many instances, interactions between operations are i

    Jan 1, 1990

  • SME-ICGCM
    Determination And IT-Supported Evaluation Of Rock Mechanical Parameters And Their Utilization During Application Of Roof Bolting Techniques

    By Nikolaos Polysos

    For the planning and driving of gateroads supported by roof bolts a practical concept has been developed in order to determine the geological and rock mechanical parameters derived from exploration dr

    Jan 1, 2001

  • SME-ICGCM
    Updating the NlOSH Support Technology Optimization Program (STOP) With New Support Technologies and Additional Design Features

    By Thomas M. Barczak

    The initial Support Technology Optimization Program (STOP), Version 1.0, was released at the 19th Gmund Control Conference. This original program has since been updated to Version 2.3 which was releas

    Jan 1, 2001

  • SME-ICGCM
    Research on the rational structure of tensible rockbolt and the effect of surrounding rock reinforcement

    By Chao-jiong Hou

    The necessity of using tensible rockbolt in the roadway with soft rock, high in-situ stresses, mining influence and other complex conditions was discussed, the structures of three kinds of tonsibte ro

    Jan 1, 1989

  • SME-ICGCM
    Massive Pillar Failure--Two Case Studies

    By David H. Tang

    Similar massive pillar failures were observed in two underground coal mines with different configurations of mine workings and overburden depths. Finite element models were used to analyze the causes

    Jan 1, 1984

  • SME-ICGCM
    Pressure Measurements in the Gob (27227c3c-951c-4108-ba5c-3b6e67d232fb)

    By H. Maleki

    Gob pressure measurements were made in a Western U. S. coal mine as part of a long-term program to evaluate cave progress and to determine the influence of geological discontinuities on caving conditi

    Jan 1, 1984

  • SME-ICGCM
    Performance of Various Standing and Cribless Tailgate Support Configurations in a Large Eastern Coal Mine

    By Gregory M. Molinda

    Difficult mining conditions in deep western U.S. Iongwalls have necessitated the use of novel tailgate support systems. Extreme ground movement in these yielding gate systems has caused operators to u

    Jan 1, 1997