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dc.contributor.authorGratchev, IB
dc.contributor.authorTowhata, I
dc.date.accessioned2017-05-03T15:55:01Z
dc.date.available2017-05-03T15:55:01Z
dc.date.issued2011
dc.date.modified2012-09-14T00:49:35Z
dc.identifier.issn0960-3182
dc.identifier.doi10.1007/s10706-011-9411-3
dc.identifier.urihttp://hdl.handle.net/10072/42174
dc.description.abstractThe 2007 Chuetsu Oki earthquake (MJMA = 6.6) triggered more than one hundred slope failures in the northwest part of Niigata prefecture, Japan. A reconnaissance survey conducted by the authors revealed that althoughmost of the failures were only a few meters deep, they still caused significant damage to roads, railways, and houses. Itwas also found that a vast number of shallow slides were concentrated along the coastal line of the Japan Sea, while only few, but relatively larger failures occurred in a mountainous part of the study area, which is located in a considerable distance from the earthquake's epicenter. This paper summarizes the reconnaissance observations, describes the geologic characteristics of the area covered by landslides, provides characterization of major types of the landslides, and examines the causes andmechanisms of typical failures. In addition, this paper seeks to investigate the mechanism of the Ohzumi landslide, the largest slide triggered by the Chuetsu Oki earthquake. For this purpose, a comprehensive analysis that included field investigation and laboratory testing of soils samples was performed. Results of field investigation suggested that the failure plane of the Ohzumi landslide formed in a saturated layer of sandy soil near a boundary with bedrock. Data from undrained cyclic loading triaxial compression tests indicated that the sandy material was highly susceptible to generation of high excess pore-water pressures during earthquake loading. On the basis of the obtained results and the outcome of seismic response and slope stability analyses, the authors posited an explanation on the mechanism of the Ohzumi landslide.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1444605 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherSpringer Netherlands
dc.publisher.placeNetherlands
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom695
dc.relation.ispartofpageto708
dc.relation.ispartofissue5
dc.relation.ispartofjournalGeotechnical and Geological Engineering
dc.relation.ispartofvolume29
dc.rights.retentionY
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchCivil geotechnical engineering
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode400502
dc.titleAnalysis of the mechanisms of slope failures triggered by the 2007 Chuetsu Oki earthquake
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Engineering
gro.rights.copyright© 2011 Springer Netherlands. This is an electronic version of an article published in Geotechnical and Geological Engineering, 2011, 695-708. Geotechnical and Geological Engineering is available online at: http://www.springerlink.com/ with the open URL of your article.
gro.date.issued2011
gro.hasfulltextFull Text
gro.griffith.authorGratchev, Ivan


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