Numerical Modeling of Room-and-Pillar Coal Mine Ground Response

dc.contributor.authorFahrman, Benjamin Paulen
dc.contributor.committeechairWestman, Erik C.en
dc.contributor.committeememberMurphy, Michael M.en
dc.contributor.committeememberKarfakis, Mario G.en
dc.contributor.committeememberRipepi, Nino S.en
dc.contributor.departmentMining and Minerals Engineeringen
dc.date.accessioned2016-03-29T08:00:35Zen
dc.date.available2016-03-29T08:00:35Zen
dc.date.issued2016-03-28en
dc.description.abstractUnderground coal mine ground control persists as a unique challenge in rock mass engineering. Fall of roof and rib continue to present a hazard to underground personnel. Stability of underground openings is a prerequisite for successful underground coal mine workings. An adaptation of a civil engineering design standard for analyzing the stability of underground excavations for mining geometries is given here. The ground response curve--developed over seventy years ago for assessing tunnel stability--has significant implications for the design of underground excavations, but has seen little use in complex mining applications. The interaction between the small scale (pillar stress-strain) and the large scale (ground response curve) is studied. Further analysis between these two length scales is conducted to estimate the stress on pillars in a room-and-pillar coal mine. These studies are performed in FLAC3D by implementing a two-scale, two-step approach. This two-scale approach allows for the interaction between the small, pillar scale and the large, panel scale to be studied in a computationally efficient manner.en
dc.description.degreePh. D.en
dc.format.mediumETDen
dc.identifier.othervt_gsexam:7278en
dc.identifier.urihttp://hdl.handle.net/10919/64986en
dc.publisherVirginia Techen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectNumerical Modelingen
dc.subjectRoom-and-Pillar Coal Miningen
dc.subjectGround Response Curveen
dc.titleNumerical Modeling of Room-and-Pillar Coal Mine Ground Responseen
dc.typeDissertationen
thesis.degree.disciplineMining Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en
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