Show simple item record

dc.contributor.author
Wang, Liang
dc.contributor.author
Lei, Qinghua
dc.date.accessioned
2021-07-21T12:01:09Z
dc.date.available
2021-07-21T11:43:44Z
dc.date.available
2021-07-21T12:01:09Z
dc.date.issued
2021-10
dc.identifier.issn
0266-352X
dc.identifier.issn
1873-7633
dc.identifier.other
10.1016/j.compgeo.2021.104357
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/496873
dc.identifier.doi
10.3929/ethz-b-000496873
dc.description.abstract
Fractured geological media often consist of a large number of discontinuities that exist over many different length scales and are associated with scale-dependent hydro-mechanical properties. This raises a great challenge for modelling such hierarchical systems using single scale-based simulations. To overcome this hurdle, in this Note, we propose a dual-scale fracture network model, which explicitly represents the distribution of large-sized fractures while also implicitly respects the contribution of small-sized fractures via an upscaling treatment. We discriminate large and small fractures according to a prescribed length scale (determined via a numerical convergence examination), based on which the domain is discretised into a mesh of grid blocks. A modified crack tensor method is employed to derive the equivalent hydro-mechanical properties of each block containing (entirely or partially) the small-sized fractures. It is shown that the bulk properties of the rock mass can be robustly calculated by this dual-scale model at high accuracy.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier BV
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject
Hierarchical fracture systems
en_US
dc.subject
Discrete fracture networks
en_US
dc.subject
Permeability
en_US
dc.subject
Deformation
en_US
dc.subject
Crack tensor
en_US
dc.title
A dual-scale fracture network model for computing hydro-mechanical properties of fractured rock
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
dc.date.published
2021-07-21
ethz.journal.title
Computers and Geotechnics
ethz.journal.volume
138
en_US
ethz.journal.abbreviated
Comput. Geotech.
ethz.pages.start
104357
en_US
ethz.size
7 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Future evolution of meta-stable rock slopes in hydropower systems of China: Implications for long-term safety
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::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03465 - Löw, Simon (emeritus) / Löw, Simon (emeritus)
en_US
ethz.grant.agreementno
189882
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
Sino-Swiss Science and Technology Cooperation (SSSTC)
ethz.date.deposited
2021-07-21T11:43:52Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-07-21T12:01:17Z
ethz.rosetta.lastUpdated
2022-03-29T10:34:57Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=A%20dual-scale%20fracture%20network%20model%20for%20computing%20hydro-mechanical%20properties%20of%20fractured%20rock&rft.jtitle=Computers%20and%20Geotechnics&rft.date=2021-10&rft.volume=138&rft.spage=104357&rft.issn=0266-352X&1873-7633&rft.au=Wang,%20Liang&Lei,%20Qinghua&rft.genre=article&rft_id=info:doi/10.1016/j.compgeo.2021.104357&
 Search print copy at ETH Library

Files in this item

Thumbnail

Publication type

Show simple item record