Determination of representative elementary volume (REV) for jointed rock masses exhibiting scale-dependent behavior: a numerical investigation

dc.contributor.authorSarı, Mehmet
dc.date.accessioned2022-01-24T07:00:33Z
dc.date.available2022-01-24T07:00:33Z
dc.date.issued2021
dc.departmentMühendislik Fakültesi
dc.description.abstractRepresentative elementary volume (REV) is defined as the usual size of a rock mass structure beyond which its mechanical properties are homogenous and isotropic, and its behavior can be modeled using the equivalent continuum approach. Determination of REV is a complex problem in rock engineering due to its definition ambiguity and application area. This study is one of the first attempts to define a REV for jointed rock masses using the equivalent continuum approach. It is aimed to numerically search a ratio between the characteristic size of an engineering structure and pre-existing joint spacing, which are the two most important contributing elements in assessing REV. For this purpose, four hypothetical engineering cases were investigated using the RS2 (Phase2 v. 9.0) finite element (FE) analysis program. An underground circular opening with a constant diameter, an open-pit mine with varying bench heights, a single bench with a constant height, and an underground powerhouse cavern with a known dimension were executed for possible changes in the safety factor and total displacement measurements under several joint spacing values. Different cut-off REVs were calculated for FE models depending on the type of excavation and measurement method. An average REV size of 19.0, ranging between a minimum of 2 for tunnels and a maximum of 48 for slopes, was found in numerical analysis. The calculated sizes of REV were significantly larger than the range of values (5 to 10) commonly reported in the relevant geotechnical literature.
dc.identifier.doi10.1186/s40703-021-00164-1
dc.identifier.endpage-en_US
dc.identifier.issn2092-9196
dc.identifier.issue1en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage-en_US
dc.identifier.urihttps:/dx.doi.org/10.1186/s40703-021-00164-1
dc.identifier.urihttps://hdl.handle.net/20.500.12451/9147
dc.identifier.volume12en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofInternational Journal of Geo-Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectJointed Rock Mass
dc.subjectNumerical Modeling
dc.subjectOpen-pit Mining
dc.subjectREV Size
dc.subjectScale Effect
dc.titleDetermination of representative elementary volume (REV) for jointed rock masses exhibiting scale-dependent behavior: a numerical investigation
dc.typeArticle

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