Numerical Modeling of Room-and-Pillar Coal Mine Ground Response
| dc.contributor.author | Fahrman, Benjamin Paul | en |
| dc.contributor.committeechair | Westman, Erik C. | en |
| dc.contributor.committeemember | Murphy, Michael M. | en |
| dc.contributor.committeemember | Karfakis, Mario G. | en |
| dc.contributor.committeemember | Ripepi, Nino S. | en |
| dc.contributor.department | Mining and Minerals Engineering | en |
| dc.date.accessioned | 2016-03-29T08:00:35Z | en |
| dc.date.available | 2016-03-29T08:00:35Z | en |
| dc.date.issued | 2016-03-28 | en |
| dc.description.abstract | Underground 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.degree | Ph. D. | en |
| dc.format.medium | ETD | en |
| dc.identifier.other | vt_gsexam:7278 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/64986 | en |
| dc.publisher | Virginia Tech | en |
| dc.rights | In Copyright | en |
| dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | en |
| dc.subject | Numerical Modeling | en |
| dc.subject | Room-and-Pillar Coal Mining | en |
| dc.subject | Ground Response Curve | en |
| dc.title | Numerical Modeling of Room-and-Pillar Coal Mine Ground Response | en |
| dc.type | Dissertation | en |
| thesis.degree.discipline | Mining Engineering | en |
| thesis.degree.grantor | Virginia Polytechnic Institute and State University | en |
| thesis.degree.level | doctoral | en |
| thesis.degree.name | Ph. D. | en |
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