Difficulty on performance prediction of excavation with machine in weak rocks

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dc.contributor.authorPoşluk, Evren
dc.contributor.authorKorkanç, Mustafa
dc.date.accessioned2024-11-07T10:39:44Z
dc.date.available2024-11-07T10:39:44Z
dc.date.issued2018
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractRock mass classification systems are used for rock mass characterization and design in the preliminary stages of many mining activities and engineering applications. There are theoretical and experimental methods for the prediction of tunnel boring machine (TBM) performance in project stage. The correct estimation of machine performance is influenced by many input parameters of rock mass, and although it is relatively easy to predict machine performance in isotropic intact rock environments, it is very difficult in poor rock having anisotropic behaviour. Many studies in this area have shown a poor relationship with penetration and rock mass classifications. In this study, the performance analysis of TBM in anisotropic weak rock environment with the QTBM method, which is used in the Tunnel No. 26 (between Bilecik and Bozuyuk), located in the Ankara-İstanbul high-speed train line, has been examined in the section until the machine is trapped in the tunnel. It is concluded that there exist problems for the anisotropic weak rocks in the QTBM method. It is extremely difficult to estimate the intermittent disk change time interval in such environments, and the relationship between properties of anisotropic rock mass and machine characteristics should be considered together for the performance machine prediction. © 2018, TMMOB - Jeoloji Muhendisleri Odasi. All rights reserved.
dc.identifier.doi10.24232/jmd.486013
dc.identifier.endpage158
dc.identifier.issn1016-9172
dc.identifier.issue2
dc.identifier.scopus2-s2.0-85070731835
dc.identifier.scopusqualityQ4
dc.identifier.startpage143
dc.identifier.urihttps://doi.org/10.24232/jmd.486013
dc.identifier.urihttps://hdl.handle.net/11480/11152
dc.identifier.volume42
dc.indekslendigikaynakScopus
dc.language.isotr
dc.publisherTMMOB - Jeoloji Muhendisleri Odasi
dc.relation.ispartofJeoloji Muhendisligi Dergisi
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectAdvance rate
dc.subjectAnisotropy
dc.subjectQ<sub>TBM</sub>
dc.subjectTBM performance
dc.subjectTunnel
dc.subjectWeak rock
dc.titleDifficulty on performance prediction of excavation with machine in weak rocks
dc.title.alternativeZayıf kayaçlarda makinalı kazı performansının kestirilmesindeki zorluklar
dc.typeArticle

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