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Article: Laboratory investigation on relationship between degree of saturation, B value and P wave velocity

TitleLaboratory investigation on relationship between degree of saturation, B value and P wave velocity
Authors
Issue Date2013
Citation
Journal of Central South University of Technology, 2013, v. 20, p. 2001-2007 How to Cite?
AbstractLaboratory tests were performed on Toyoura sand specimens to investigate the relationship between degree of saturation S r, B-value and P-wave velocity V p. Different types of pore water (de-aired water or tap water) and pore gas (air or CO2) as well as different magnitudes of back pressure were used to achieve different S r (or B-value). The measured relationship between B-value and V p was not consistent with the theoretical prediction. The measurement shows that the V p value in the specimen flushed with de-aired water is independent of B-value (or S r) and is always around the one in fully saturated condition. However, the V p value in the specimen flushed with tap water increases with B-value, but the shape of the relationship between V p and B-value is quite different from the theoretical prediction. The possible explanation for the discrepancy between laboratory measurement and theoretical prediction lies in that the air exists in the water as air bubbles and therefore the pore fluid (air-water mixture) is heterogeneous instead of homogenous assumed in the theoretical prediction. © 2013 Central South University Press and Springer-Verlag Berlin Heidelberg.
Persistent Identifierhttp://hdl.handle.net/10722/202664
ISSN
2015 Impact Factor: 0.562
2015 SCImago Journal Rankings: 0.335
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGu, Xen_US
dc.contributor.authorYang, Jen_US
dc.contributor.authorHuang, Men_US
dc.date.accessioned2014-09-19T09:14:13Z-
dc.date.available2014-09-19T09:14:13Z-
dc.date.issued2013en_US
dc.identifier.citationJournal of Central South University of Technology, 2013, v. 20, p. 2001-2007en_US
dc.identifier.issn20952899-
dc.identifier.urihttp://hdl.handle.net/10722/202664-
dc.description.abstractLaboratory tests were performed on Toyoura sand specimens to investigate the relationship between degree of saturation S r, B-value and P-wave velocity V p. Different types of pore water (de-aired water or tap water) and pore gas (air or CO2) as well as different magnitudes of back pressure were used to achieve different S r (or B-value). The measured relationship between B-value and V p was not consistent with the theoretical prediction. The measurement shows that the V p value in the specimen flushed with de-aired water is independent of B-value (or S r) and is always around the one in fully saturated condition. However, the V p value in the specimen flushed with tap water increases with B-value, but the shape of the relationship between V p and B-value is quite different from the theoretical prediction. The possible explanation for the discrepancy between laboratory measurement and theoretical prediction lies in that the air exists in the water as air bubbles and therefore the pore fluid (air-water mixture) is heterogeneous instead of homogenous assumed in the theoretical prediction. © 2013 Central South University Press and Springer-Verlag Berlin Heidelberg.-
dc.languageengen_US
dc.relation.ispartofJournal of Central South University of Technologyen_US
dc.titleLaboratory investigation on relationship between degree of saturation, B value and P wave velocityen_US
dc.typeArticleen_US
dc.identifier.emailGu, X: gxq1981@hku.hken_US
dc.identifier.emailYang, J: junyang@hkucc.hku.hken_US
dc.identifier.authorityYang, J=rp00201en_US
dc.identifier.doi10.1007/s11771-013-1701-x-
dc.identifier.scopuseid_2-s2.0-84880553967-
dc.identifier.hkuros236349en_US
dc.identifier.volume20en_US
dc.identifier.spage2001en_US
dc.identifier.epage2007en_US
dc.identifier.isiWOS:000321670200030-

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