Holt_2012_PrairieChickenDissertation
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Holt_2012_PrairieChickenDissertation
^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertationations into the LaModel programMorgan M. SearsWest Virginia UniversityFollow this and additional works at: https7/researchrepository wvu.edu/etdRecommended CitationSears, Morgan M, 'Implementing energy release rate calculations into the LaModel program" (2009). Graduate Theses, Dissertations, and Pr Holt_2012_PrairieChickenDissertationoblem Reports. 2082.https://researchrepository.wvu.edu/etd/2082This Thesis IS protected by copyright and/or related rights. It has been brought to youHolt_2012_PrairieChickenDissertation
by the The Research Repository © wvu with permission from the rights-boider(s). You are free to use this Thesis in any way that is permitted by the c^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertation additional rights are indicated by a Creative Commons license in the record and/ or on the work Itself. This Thesis has been accepted for inclusion in wvu Graduate Theses. Dissertations, and Problem Reports collection by an authorized administrator of The Research Repository @ wvu. For more informa Holt_2012_PrairieChickenDissertationtion, please contact researchrepository©mail wvu.edu.Implementing Energy Release Rate Calculations Into the LaModel ProgramMorgan M. SearsThesis submiHolt_2012_PrairieChickenDissertation
tted to the College of Engineering and Mineral Resources at West Virginia UniversityIn partial fulfillment of the requirements for the degree ofMaster^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertationia2009Keywords: ERR. Energy Release Rate. Coal Mine Bumps. Rock Burst. LaModelABSTRACTImplementing Energy Release Rate Calculations Into the l.aModel ProgramMorgan M. ScarsMining activity ill increasingly greater depths and the tragedy al Crandall Canyon that claimed the lives of nine miners have fo Holt_2012_PrairieChickenDissertationrced coal bump research to the forefront of mining engineering research. Near the end of the last century, the National Institute for Occupational SafHolt_2012_PrairieChickenDissertation
ety and Health (NĨOSH) and the former U.S. Bureau of Mines investigated the mechanics, conditions, and mitigation of coal bumps. Unfortunately, the ex^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertationnergy Release Rate (ERR) calculation quantifies the dissipation (“release ’) of the gravitational potential energy of the rock mass as mining progresses. This release of energy can occur passively in the form of heat and sound, or dynamically in the form of coal or rock outbursts. From the initial a Holt_2012_PrairieChickenDissertationpplication of a calculated ERR in the deep hard-rock mines of South Africa, the ERR was found to have a significant correlation with the risk or potenHolt_2012_PrairieChickenDissertation
tial of damaging coal bumps or rock bursts, hl the mid 1990s. the ERR was incorporated into the MULS1M NL displacement-discontinuity computer program ^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertationor potential coal bumps. Initially, the ERR calculations in LaModel arc verified using a case study of cut sequences originally modeled using the MUT.STM/NT. computer program. Then, the FRR calculations are applied to a bump-prone mine in Southern .Appalachia where a number of different pillar recov Holt_2012_PrairieChickenDissertationery cut sequences were used analyzed in order to minimize the risk of bumps.Incorporating the F.RR calculations into the I.aModel program further enhaHolt_2012_PrairieChickenDissertation
nces the most widely used boundary-element model to allow for appropriate bump risk assessment. With this new analysis tool, engineers can adequately ^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calcula Holt_2012_PrairieChickenDissertationers and rescuers who lost their lives at the Crandall Canyon mine. Without its mainstream media attention, public outcry, and federal legislation. Rinding for this project would not have been used for the much needed research in the prediction of coal bumps and rock bursts.iiiAcknowledgements Holt_2012_PrairieChickenDissertation^jlfWestVirginiaUniversityTHE RESEARCH REPOSITORY @ wvuGraduate Theses, Dissertations, and Problem Reports2009Implementing energy release rate calculaGọi ngay
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