dc.contributor.author |
Abo El Naga, Hossam |
en |
dc.contributor.author |
Bouazza, A |
en |
dc.date.accessioned |
2012-03-14T22:01:27Z |
en |
dc.date.issued |
2009 |
en |
dc.identifier.citation |
Journal of Geotechnical and Geoenvironmental Engineering 135(11):1661-1672 2009 |
en |
dc.identifier.issn |
1090-0241 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/14381 |
en |
dc.description.abstract |
Numerical experiments were conducted to understand the effect of geometric and transport characteristics of a geomembranegeosynthetic clay liner GM/GCL composite liner on gas leakage rate through a circular defect in the geomembrane GM . The originality of the approach proposed in this paper rests on the use of a new conceptual two-layered system for modeling of GM/GCL composite liners where the interface zone between the GM and geosynthetic clay liner GCL has been merged with the GCL cover geotextile and handled as one layer; the GCL bentonite layer was considered the second layer. The role of the carrier geotextile layer was ignored since it can be considered as a no pressure loss layer. Analysis of numerical simulation results shows the existence of a constitutive leakage flow surface which enables evaluation of the leakage flow state for different geometric and transport properties of GM/GCL composite liners. Furthermore, the determined surface was also exploited to evaluate gas leakage rates under the framework of the Forchheimer’s analytical solution. The gas leakage rate predictions were found to be in good agreement with experimental results obtained at different GCL moisture content. |
en |
dc.publisher |
ASCE |
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dc.relation.ispartofseries |
Journal of Geotechnical and Geoenvironmental Engineering |
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dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
Details obtained from http://www.sherpa.ac.uk/romeo/issn/1090-0241/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.title |
Numerical Characterization of Advective Gas Flow through Gm\Gcl Composite Liners Having a Circular Defect in the Geomembrane |
en |
dc.type |
Journal Article |
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dc.identifier.doi |
10.1061/(ASCE)GT.1943-5606.0000116 |
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pubs.issue |
11 |
en |
pubs.begin-page |
1661 |
en |
pubs.volume |
135 |
en |
dc.rights.holder |
Copyright: ASCE |
en |
pubs.end-page |
1672 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
89173 |
en |
pubs.record-created-at-source-date |
2010-09-01 |
en |