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  • SME-ICGCM
    Controlling Subsidence Effects Using Partial Backfilling

    By Yingzin Zhou

    Partial backfilling can be used to reduce and control surface subsidence damage caused by longwall mining or pillaring operations in room-and-pillar mines. The use of partial backfill as opposed to to

    Jan 1, 1990

  • SME-ICGCM
    Mechanism and Prevention Measure of Rib Spalling in 6.5 Meter High Caving Face in Thick Coal Seam with Undulated Floor

    By Weidong Pan, Yinchao Yang, Baodong Zuo

    Fully mechanized mining technology, with a large cutting height in thick coal seam, has been developed to be large-scale, mechanized, and intelligent. Furthermore, it is also superior to other mining

    Jan 1, 2017

  • SME-ICGCM
    Development of the Laboratory Short Encapsulation Pull Test for a Revised British Standard on Rock Reinforcement Components Used in Coal Mining

    By D. Bigby

    The current British Standard on rock reinforcement components used in coal mining (BS7861:1996) employs the axial double embedment tensile PET) test to determine the main system load transfer performa

    Jan 1, 2005

  • SME-ICGCM
    Roof Support Performance In High Stress Conditions

    By Thomas P. Mucho

    To document the performance of mine roof and roof support systems the U.S. Bureau of Mines (IJSBM) has been installing instrumentation at selected sites in U.S. coal mines. Much of this support and ro

    Jan 1, 1995

  • SME-ICGCM
    Application Of Tailing Sand And Water As Backfill Material In Metal Mines (1992)

    By Sun Henghu

    This paper analyses problems associated with cement based technique in metal mines, and provides a new mining technique of packing the tailing sand and water into solidified material. In the new techn

    Jan 1, 1992

  • 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
    Key Technologies of Integration of Coal Mining–Gangue Washing–Gob Backfilling

    By Wei Yin, Yu Wu, Xiexing Miao

    "For engineering problems of “three under” coal (coal trapped under buildings, waters-bodies and railways) exploitation, environment protection and gangue separation from raw coal underground exist in

    Jan 1, 2015

  • SME-ICGCM
    "Void Fill Techniques for Stabilizing Roof Conditions during LongwallShield Recovery"

    By Rusty Mchenry, Craig Dickerson, Robin L. Oldham

    "It has been proven that longwall faces can be moved safely and efficiently. However, abutment pressures and poor ground control conditions can halt operations and be hazardous to coal miners. Recentl

    Jan 1, 2015

  • SME-ICGCM
    Subsidence Studies In Thick And Steep Coal Seam Mining

    By M. Y. Fisekci

    This paper concentrates on subsidence measurements, applied over the thick and steep seam mining in the Rocky Mountains Region of Western Canada. The studies to date indicate that two new subsidence m

    Jan 1, 1981

  • SME-ICGCM
    Practical Rock Mechanics For Safety And Productivity Improvements

    By M. Guana

    Island Creek Corporation is predominately an underground mine operator deploying room-and-pillar and retreat longwall mining methods for extracting coal. Wide variations are encountered in overburden

    Jan 1, 1988

  • 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
    Application in Design for Close Proximity Multi-Seem Mining

    Virtually all mineable Appalachian coal seams exist in a multi-seam environment. This makes it inevitable that most seams will eventually experience interaction induced ground control and mining probl

    Jan 1, 1987

  • SME-ICGCM
    Stereological Sampling And Analysis For Characterizing Discontinuous Rock Masses

    By J. K. Owens

    As part of a larger research effort focused on ground control, the U.S. Bureau of Mines is currently evaluating the effectiveness of using stereological analysis for characterizing mine roof strata. I

    Jan 1, 1994

  • SME-ICGCM
    Pillar Design and Roof Support for Controlling Longwall Headgate Subject to High Horizontal Stresses

    By D. W. H. Su

    A two-year study was conducted by CONSOL in a northern West Virginia coal mine to evaluate pillar design and support requirements to improve roof control in right-hand longwall headgates subject to hi

    Jan 1, 2003

  • SME-ICGCM
    Basic Procedures for Monitoring and Modeling Abandoned Underground Coal Mines for Safety Due to Uncontrolled Closures: Case Study of Verdinho Mine, Santa Catarina State, Brazil

    By Selmar A. Oliveira

    "Safe mine closure is an important step in the mining lifecycle. Plans for safe and efficient closure should begin at the inception of mining. Ideally, closure occurs when the reserve has been deplete

    Jan 1, 2017

  • SME-ICGCM
    INSTáL CableOx: A New Tensionable & Corrosion Resistant Cable Bolt

    By John C. Stankus

    The success of cable bolts for mine ground control have been well documented in papers presented at this conference too numerous to reference. Cable bolts have proven effective over the years mainly u

    Jan 1, 2000

  • SME-ICGCM
    Stooping Low Safety Factor Pillars At Goedehoop Colliery

    By Gift Makusha

    The Witbank Coalfield in South Africa contains up to five economically viable coal seams. These seams have been mined continuously for over 100 years and the reserve in now becoming depleted. The norm

    Jan 1, 2003

  • SME-ICGCM
    Theory and Technology of Mining Subsidence Control by Grouting the Overlying Strata Separations with Fine-Coal Ash

    By Yanfa Gao

    Abstract In order to control and reduce ground subsidence due to coal mining, and to protect building, railway and other surface construction, a new subsidence control method is proposed. Ground subsi

    Jan 1, 2002

  • SME-ICGCM
    Multi-Scale Assessment Of Coal And Gas Outbursts Based On Fractal Measurements

    By Mingju Liu

    In this research, we measured fractal characteristics of over ten typical outburst areas on different scales and related them to their outburst proneness, in attempts to provide new methods for outbur

    Jan 1, 2000

  • SME-ICGCM
    Design And Operation Of Powered And Entry Supports

    By Thomas L. Hutchinson

    The mechanical design of a roof support is basically a matter of a statics and dynamics problem, assuming of course, that the imposed loads and mining conditions are known. Here in the Appalachian coa

    Jan 1, 1981