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dc.contributor.authorDyne, Laura Anneen_US
dc.date.accessioned2014-03-14T20:32:16Z
dc.date.available2014-03-14T20:32:16Z
dc.date.issued1998-01-23en_US
dc.identifier.otheretd-02698-141841en_US
dc.identifier.urihttp://hdl.handle.net/10919/31383
dc.description.abstractCoal mining in Pennsylvania has long been an important factor in the economic development of the commonwealth. However, the mines abandoned before today's strict environmental regulations have degraded over half of Pennsylvania's counties. Subsidence incidents, known as chimney caves, are in the form of sinkholes and develop above abandoned room-and-pillar mines. Chimney caving is the most dominant type of subsidence in southwestern Pennsylvania, yet there are no accurate means available to predict their occurrences. Therefore, an investigation has been conducted in order to develop a set of engineering criteria, or an equation, to predict such occurrences. Through conducting sand model experiments and through the collection of a chimney subsidence incident database, such an equation was derived, and verified using actual field data.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartetd.PDFen_US
dc.rightsI hereby grant to Virginia Tech or its agents the right to archive and to make available my thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertation.en_US
dc.subjectPennsylvaniaen_US
dc.subjectsubsidenceen_US
dc.subjectchimneyen_US
dc.titleThe Prediction and Occurrence of Chimney Subsidence in Southwestern Pennsylvaniaen_US
dc.typeThesisen_US
dc.contributor.departmentMining and Minerals Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineMining and Minerals Engineeringen_US
dc.contributor.committeechairLuttrell, Gerald H.en_US
dc.contributor.committeememberCraynon, John Raymonden_US
dc.contributor.committeememberHaycocks, Christopheren_US
dc.contributor.committeememberKarmis, Michael E.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02698-141841/en_US
dc.date.sdate1998-01-23en_US
dc.date.rdate1998-01-27
dc.date.adate1998-01-27en_US


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