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Article: Aspects of sand behaviour by modified constant shear drained tests

TitleAspects of sand behaviour by modified constant shear drained tests
Authors
Issue Date2011
Citation
Environmental Earth Sciences, 2011, v. 62 n. 4, p. 865-870 How to Cite?
AbstractConstant shear drained tests (CSD) are probably the most suitable to simulate the strength and deformation behaviour of soils in slopes under water infiltration conditions or lateral stress relief. This is significant because soil behaviour following a CSD stress path could differ from that of traditional compression triaxial tests. In this paper, CSD tests on sand following an alternative procedure are presented and discussed. The modified CSD tests were conducted by increasing the pore water pressure at a constant rate from one end of the specimen with water free to drain from the opposite end. Among the results from specimens consolidated at variable initial void ratios and principal stress ratios it was revealed that specimens showed a tendency to dilate even for loose sands; failure was reached at low axial strains; and a pre-failure type of instability could be identified. The modified procedure has the potential to provide new insights into the failure mechanisms of slopes under a water infiltration condition. © 2010 Springer-Verlag.
Persistent Identifierhttp://hdl.handle.net/10722/194299
ISSN
2014 Impact Factor: 1.765
2015 SCImago Journal Rankings: 0.755
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLourenço, SDN-
dc.contributor.authorWang, G-H-
dc.contributor.authorChu, J-
dc.date.accessioned2014-01-30T03:32:25Z-
dc.date.available2014-01-30T03:32:25Z-
dc.date.issued2011-
dc.identifier.citationEnvironmental Earth Sciences, 2011, v. 62 n. 4, p. 865-870-
dc.identifier.issn1866-6280-
dc.identifier.urihttp://hdl.handle.net/10722/194299-
dc.description.abstractConstant shear drained tests (CSD) are probably the most suitable to simulate the strength and deformation behaviour of soils in slopes under water infiltration conditions or lateral stress relief. This is significant because soil behaviour following a CSD stress path could differ from that of traditional compression triaxial tests. In this paper, CSD tests on sand following an alternative procedure are presented and discussed. The modified CSD tests were conducted by increasing the pore water pressure at a constant rate from one end of the specimen with water free to drain from the opposite end. Among the results from specimens consolidated at variable initial void ratios and principal stress ratios it was revealed that specimens showed a tendency to dilate even for loose sands; failure was reached at low axial strains; and a pre-failure type of instability could be identified. The modified procedure has the potential to provide new insights into the failure mechanisms of slopes under a water infiltration condition. © 2010 Springer-Verlag.-
dc.languageeng-
dc.relation.ispartofEnvironmental Earth Sciences-
dc.titleAspects of sand behaviour by modified constant shear drained tests-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s12665-010-0573-8-
dc.identifier.scopuseid_2-s2.0-79251597377-
dc.identifier.volume62-
dc.identifier.issue4-
dc.identifier.spage865-
dc.identifier.epage870-
dc.identifier.isiWOS:000286616800017-

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