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Article: Undrained shear behavior of loess saturated with different concentrations of sodium chloride solution

TitleUndrained shear behavior of loess saturated with different concentrations of sodium chloride solution
Authors
Issue Date2013
Citation
Engineering Geology, 2013, v. 155, p. 69-79 How to Cite?
AbstractA series of ring-shear tests was conducted on saturated loess to investigate the effects of NaCl concentration in pore water and desalinization on the shear behavior under undrained conditions. The loess samples were taken from the ground surface of a frequently active landslide in China, were saturated by de-aired, distilled water with different concentrations of NaCl, and then were sheared undrained. After that, the samples were retrieved, remolded, re-set into the shear box, and re-saturated by passing through de-aired, distilled water such that the samples were desalinized, and then were sheared undrained again. Through comparing the undrained shear behavior, the effects of NaCl in the pore-water and desalinization on the undrained shear behavior of loess were examined. The results showed that the variation of NaCl concentration in pore water can strongly affect the shear behavior of saturated loess. Both the peak shear strength and steady-state strength increased with increase of NaCl concentration until a certain value, after which they decreased with further increase of NaCl concentration. Meanwhile, the peak shear strength and steady-state strength of the desalinized samples recovered to those of the original sample; hence, the effects of salinization are reversible. These findings may be of practical importance to better understand the repeated occurrence of some irrigation-induced loess landslides in China. © 2013 Elsevier B.V.
Persistent Identifierhttp://hdl.handle.net/10722/188911
ISSN
2015 Impact Factor: 2.196
2015 SCImago Journal Rankings: 1.810
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, Fen_US
dc.contributor.authorWang, Gen_US
dc.contributor.authorKamai, Ten_US
dc.contributor.authorChen, Wen_US
dc.contributor.authorZhang, Den_US
dc.contributor.authorYang, Jen_US
dc.date.accessioned2013-09-17T14:20:51Z-
dc.date.available2013-09-17T14:20:51Z-
dc.date.issued2013en_US
dc.identifier.citationEngineering Geology, 2013, v. 155, p. 69-79en_US
dc.identifier.issn00137952-
dc.identifier.urihttp://hdl.handle.net/10722/188911-
dc.description.abstractA series of ring-shear tests was conducted on saturated loess to investigate the effects of NaCl concentration in pore water and desalinization on the shear behavior under undrained conditions. The loess samples were taken from the ground surface of a frequently active landslide in China, were saturated by de-aired, distilled water with different concentrations of NaCl, and then were sheared undrained. After that, the samples were retrieved, remolded, re-set into the shear box, and re-saturated by passing through de-aired, distilled water such that the samples were desalinized, and then were sheared undrained again. Through comparing the undrained shear behavior, the effects of NaCl in the pore-water and desalinization on the undrained shear behavior of loess were examined. The results showed that the variation of NaCl concentration in pore water can strongly affect the shear behavior of saturated loess. Both the peak shear strength and steady-state strength increased with increase of NaCl concentration until a certain value, after which they decreased with further increase of NaCl concentration. Meanwhile, the peak shear strength and steady-state strength of the desalinized samples recovered to those of the original sample; hence, the effects of salinization are reversible. These findings may be of practical importance to better understand the repeated occurrence of some irrigation-induced loess landslides in China. © 2013 Elsevier B.V.-
dc.languageengen_US
dc.relation.ispartofEngineering Geologyen_US
dc.titleUndrained shear behavior of loess saturated with different concentrations of sodium chloride solutionen_US
dc.typeArticleen_US
dc.identifier.emailYang, J: junyang@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.identifier.doi10.1016/j.enggeo.2012.12.018-
dc.identifier.scopuseid_2-s2.0-84875405685-
dc.identifier.hkuros221228en_US
dc.identifier.volume155en_US
dc.identifier.spage69en_US
dc.identifier.epage79en_US
dc.identifier.isiWOS:000317256300007-

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