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dc.contributor.authorLuo, JunLuen_US
dc.date.accessioned2014-03-14T20:51:05Z
dc.date.available2014-03-14T20:51:05Z
dc.date.issued1997-05-02en_US
dc.identifier.otheretd-2250112849731471en_US
dc.identifier.urihttp://hdl.handle.net/10919/36553
dc.description.abstractThere are two major design problems for upper seam longwall gateroads operating in a multi-seam environment. The first is to determine the location, magnitude and duration of stress transferred from lower seam mines; and the second is to predict the effect of stress transferred from lower seam mines on opening stability. To solve these problems for both longwall and room-and-pillar mines, case study data were collected and analyzed to develop empirical models predicting upper seam damage created by mining activities in the lower seam. Analysis showed vertical movement in the upper seam and roof CMRR (Coal Mine Roof Rating) to be the controlling factors in damage prediction and, therefore, gateroad planning and design. The relationship between the predicted damage rating and the gateroad stability was established and quantified. To simplify the application of design procedures developed for longwall gateroad systems, the criteria were incorporated in a Windows-based, multi-interface software , UGLY (Upperseam Gateroad Longwall Stability). The programming language was Visual Basic, and the program's design capabilities were validated and demonstrated using case study data.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartetd.pdfen_US
dc.relation.haspartThesis.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.subjectchain pillaren_US
dc.subjectgateroaden_US
dc.subjectoverminingen_US
dc.subjectlongwallen_US
dc.subjectdamage ratingen_US
dc.subjectCMRRen_US
dc.titleGateroad Design in Overlying Multi-Seam Minesen_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.committeechairHaycocks, Christopheren_US
dc.contributor.committeememberLuttrell, Gerald H.en_US
dc.contributor.committeememberKarmis, Michael E.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-2250112849731471/en_US
dc.date.sdate1998-07-18en_US
dc.date.rdate1997-05-02
dc.date.adate1997-05-02en_US


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