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dc.contributor.authorForrest, Peteren_US
dc.date.accessioned2014-03-14T21:41:03Z
dc.date.available2014-03-14T21:41:03Z
dc.date.issued1988-08-05en_US
dc.identifier.otheretd-07212010-020415en_US
dc.identifier.urihttp://hdl.handle.net/10919/43854
dc.description.abstract

Appalachia requires design guidelines for the increasingly popular multi-seam longwall method. Entry layouts often depart from the ideal when finally developed. The thesis examines the occurrence of ground control problems, and possibilities for improvements in strata control, in a variety of undermining situations. The effects of upper seam loading on undermining operations are invest~gated using physical modelling. Photoelastic stress analysis is used as a powerful research tool to analyze complex multiple seam entry systems. Yield pillar use is also examined, in anticipation of their widespread application for ground control. Case examples support the research findings, and specific conclusions aim to assist layout design in interactive zones.

en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V855_1988.F677.pdfen_US
dc.subjectRock mechanicsen_US
dc.subject.lccLD5655.V855 1988.F677en_US
dc.titleLayout design for interactive zones in longwall multiple seam miningen_US
dc.typeThesisen_US
dc.contributor.departmentMining 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 Engineeringen_US
dc.contributor.committeechairHaycocks, Christopheren_US
dc.contributor.committeememberKarmis, Michael E.en_US
dc.contributor.committeememberLuttrell, Gerald H.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-07212010-020415/en_US
dc.date.sdate2010-07-21en_US
dc.date.rdate2010-07-21
dc.date.adate2010-07-21en_US


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