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Article: Static liquefaction behavior of saturated fiber-reinforced sand in undrained ring-shear tests

TitleStatic liquefaction behavior of saturated fiber-reinforced sand in undrained ring-shear tests
Authors
KeywordsFiber-Reinforced Sand
Ring-Shear Test
Static Liquefaction
Undrained Shear
Liquefaction Resistance
Issue Date2011
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/geotexmem
Citation
Geotextiles And Geomembranes, 2011, v. 29 n. 5, p. 462-471 How to Cite?
AbstractThe problem of static liquefaction of sand is nowadays a classical soil mechanics subject. Using a ring-shear apparatus, we explore the possibility of fiber reinforcement as a new method to improve the liquefaction resistance of sand. In order to understand the effect of the fiber content and sand density on the static liquefaction behavior of fiber-reinforced sand, a series of undrained ring-shear tests were carried out on saturated samples with different fiber content and sand density, and the test results and mechanisms of fiber reinforcement were then analyzed. The results indicate that the undrained shear behavior of fiber-reinforced loose samples is not greatly influenced by the presence of fiber, but for medium dense and dense samples, the presence of fiber clearly affects their undrained behavior. Untreated specimens showed a continuous decrease in shear resistance after failure, while the specimens treated with fiber showed fluctuations even after shear failure, and these fluctuations become stronger with increasing fiber content. The peak shear strength increases with the fiber content, especially in dense specimens. After shearing, all the fiber-reinforced and untreated dense samples maintained structural stability, while the unreinforced loose samples showed a completely collapse of structure. The presence of fibers may thus limit or even prevent the occurrence of lateral spreading that is often observed in unreinforced sand. © 2011 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/150595
ISSN
2015 Impact Factor: 2.366
2015 SCImago Journal Rankings: 2.952
ISI Accession Number ID
Funding AgencyGrant Number
Natural Science Foundation of China40672181
National Natural Science of China40730739
Scientific Research Foundation of Graduate School of Nanjing University2009CL10
Funding Information:

This research is financially supported by the Natural Science Foundation of China (Grant No. 40672181), the State Key Program of National Natural Science of China (Grant No. 40730739) and the Scientific Research Foundation of Graduate School of Nanjing University (Grant No. 2009CL10). The authors gratefully acknowledge Dr. Chaosheng Tang in School of Earth Sciences and Engineering, Nanjing University, China, and Dr. Hiroshi Fukuoka, Associate Professor in Research Center on Landslides, Disaster Prevention Research Institute, Kyoto University, Japan, for their help and comments on this work. The authors are grateful to Mrs Eileen McSaveney in GNS, New Zealand for her suggested corrections to improve this paper. The authors would also like to acknowledge the editors and reviewers of this paper for their very helpful comments and valuable remarks.

References

 

DC FieldValueLanguage
dc.contributor.authorLiu, Jen_US
dc.contributor.authorWang, Gen_US
dc.contributor.authorKamai, Ten_US
dc.contributor.authorZhang, Fen_US
dc.contributor.authorYang, Jen_US
dc.contributor.authorShi, Ben_US
dc.date.accessioned2012-06-26T06:06:01Z-
dc.date.available2012-06-26T06:06:01Z-
dc.date.issued2011en_US
dc.identifier.citationGeotextiles And Geomembranes, 2011, v. 29 n. 5, p. 462-471en_US
dc.identifier.issn0266-1144en_US
dc.identifier.urihttp://hdl.handle.net/10722/150595-
dc.description.abstractThe problem of static liquefaction of sand is nowadays a classical soil mechanics subject. Using a ring-shear apparatus, we explore the possibility of fiber reinforcement as a new method to improve the liquefaction resistance of sand. In order to understand the effect of the fiber content and sand density on the static liquefaction behavior of fiber-reinforced sand, a series of undrained ring-shear tests were carried out on saturated samples with different fiber content and sand density, and the test results and mechanisms of fiber reinforcement were then analyzed. The results indicate that the undrained shear behavior of fiber-reinforced loose samples is not greatly influenced by the presence of fiber, but for medium dense and dense samples, the presence of fiber clearly affects their undrained behavior. Untreated specimens showed a continuous decrease in shear resistance after failure, while the specimens treated with fiber showed fluctuations even after shear failure, and these fluctuations become stronger with increasing fiber content. The peak shear strength increases with the fiber content, especially in dense specimens. After shearing, all the fiber-reinforced and untreated dense samples maintained structural stability, while the unreinforced loose samples showed a completely collapse of structure. The presence of fibers may thus limit or even prevent the occurrence of lateral spreading that is often observed in unreinforced sand. © 2011 Elsevier Ltd.en_US
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/geotexmemen_US
dc.relation.ispartofGeotextiles and Geomembranesen_US
dc.subjectFiber-Reinforced Sanden_US
dc.subjectRing-Shear Testen_US
dc.subjectStatic Liquefactionen_US
dc.subjectUndrained Shearen_US
dc.subjectLiquefaction Resistance-
dc.titleStatic liquefaction behavior of saturated fiber-reinforced sand in undrained ring-shear testsen_US
dc.typeArticleen_US
dc.identifier.emailYang, J:junyang@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.geotexmem.2011.03.002en_US
dc.identifier.scopuseid_2-s2.0-80052259228en_US
dc.identifier.hkuros191298-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052259228&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume29en_US
dc.identifier.issue5en_US
dc.identifier.spage462en_US
dc.identifier.epage471en_US
dc.identifier.isiWOS:000295304700003-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLiu, J=36064082300en_US
dc.identifier.scopusauthoridWang, G=8532560900en_US
dc.identifier.scopusauthoridKamai, T=7003797392en_US
dc.identifier.scopusauthoridZhang, F=50662391100en_US
dc.identifier.scopusauthoridYang, J=35605258800en_US
dc.identifier.scopusauthoridShi, B=7402545779en_US
dc.identifier.citeulike9178912-

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