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dc.contributor.author
Kleinbrod, Ulrike
dc.contributor.author
Burjánek, Jan
dc.contributor.author
Fäh, Donat
dc.date.accessioned
2019-02-01T14:38:03Z
dc.date.available
2019-01-18T04:19:18Z
dc.date.available
2019-02-01T14:38:03Z
dc.date.issued
2019-01-31
dc.identifier.issn
0013-7952
dc.identifier.issn
1872-6917
dc.identifier.other
10.1016/j.enggeo.2018.12.012
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/317083
dc.identifier.doi
10.3929/ethz-b-000317083
dc.description.abstract
In this paper, we are comparing the seismic response of 25 different rock slope instabilities with diverse geological properties, activity level, failure mechanism, fracturing and volumes. We classify them according to their dynamic behaviour. In the dataset, we found two main classes of unstable rock slopes: depth-controlled sites and volume-controlled sites. For depth-controlled instabilities, the seismic wavefield is controlled by horizontally propagating surface waves in the highly fractured and weathered material. At such sites, surface-wave dispersion curves can be retrieved and inverted into velocity profiles of the underground. The lateral borders of depth-controlled instabilities are not obvious and the seismic properties mainly change with depth. The seismic response of volume-controlled sites is dominated by the eigenvibrations of the rock mass itself. Such instabilities have clear lateral and vertical borders and show highly amplified ground motion in limited frequency bands. The observed polarisation of the ground motion is perpendicular to deep open fractures that do not allow surface waves to propagate. A special case of the volume-controlled sites is represented by tower-like rock masses showing strong amplification and directionality. Their dynamic behaviour might not only be related to the internal structure, but also to their geometry that is similar to high-rise buildings. Another type of rock instabilities is represented by block structures, which are difficult to identify by the proposed ambient-vibration methods. A clear relation between geological properties and seismic response was not found.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Unstable rock slope
en_US
dc.subject
Ambient vibration
en_US
dc.subject
Classification
en_US
dc.subject
Site effect
en_US
dc.subject
Seismic wave propagation
en_US
dc.subject
Eigenvibrations
en_US
dc.title
Ambient vibration classification of unstable rock slopes: A systematic approach
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-12-19
ethz.journal.title
Engineering Geology
ethz.journal.volume
249
en_US
ethz.journal.abbreviated
Eng. geol.
ethz.pages.start
198
en_US
ethz.pages.end
217
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00003 - Schulleitung und Dienste::00022 - Bereich VP Forschung / Domain VP Research::02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)
ethz.date.deposited
2019-01-18T04:19:18Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-02-01T14:38:28Z
ethz.rosetta.lastUpdated
2020-02-15T16:55:08Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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