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Conference Paper: Rheological properties of some marine muds dredged from China coasts

TitleRheological properties of some marine muds dredged from China coasts
Authors
KeywordsBingham plastic
Mud rheology
Power-law model
Issue Date2010
PublisherInternational Society of Offshore and Polar Engineers.
Citation
The 12th International Offshore and Polar Engineering Conference (ISOPE 2010), Beijing, China, 20-25 June 2010. In Proceedings Of The International Offshore And Polar Engineering Conference, 2010, v. 2, p. 455-461 How to Cite?
Abstract
This is an experimental study that aims to examine the rheological response of natural muds under steady simple shear, using a controlled-shear-stress system. Natural estuarine muds dredged from Haihe River in Tianjin and Mazhou Island near Shenzhen are tested. Experimental data at low shear rates are obtained and analyzed based on the Bingham and power-law models. The applicability of these two models in different ranges of shear rate is compared. It is found that the Bingham model does not provide a satisfactory description of the shear-thinning behavior of the muds at very low shear rates. The density dependence of the rheological parameters in terms of the Bingham and power-law models is also examined. On relating the rheological behavior to the particle size distribution, it is pointed out that the presence of coarse particles with a mean diameter d > 0.1 mm may lead to dislocation of particles in the internal structure, thereby causing the yield stress and viscosity of the material to decrease. Copyright © 2010 by The International Society of Offshore and Polar Engineers (ISOPE).
Persistent Identifierhttp://hdl.handle.net/10722/126327
ISSN
References

 

Author Affiliations
  1. The University of Hong Kong
  2. Tianjin University
DC FieldValueLanguage
dc.contributor.authorZhang, Xen_HK
dc.contributor.authorBai, Yen_HK
dc.contributor.authorNg, COen_HK
dc.date.accessioned2010-10-31T12:22:17Z-
dc.date.available2010-10-31T12:22:17Z-
dc.date.issued2010en_HK
dc.identifier.citationThe 12th International Offshore and Polar Engineering Conference (ISOPE 2010), Beijing, China, 20-25 June 2010. In Proceedings Of The International Offshore And Polar Engineering Conference, 2010, v. 2, p. 455-461en_HK
dc.identifier.issn1098-6189en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126327-
dc.description.abstractThis is an experimental study that aims to examine the rheological response of natural muds under steady simple shear, using a controlled-shear-stress system. Natural estuarine muds dredged from Haihe River in Tianjin and Mazhou Island near Shenzhen are tested. Experimental data at low shear rates are obtained and analyzed based on the Bingham and power-law models. The applicability of these two models in different ranges of shear rate is compared. It is found that the Bingham model does not provide a satisfactory description of the shear-thinning behavior of the muds at very low shear rates. The density dependence of the rheological parameters in terms of the Bingham and power-law models is also examined. On relating the rheological behavior to the particle size distribution, it is pointed out that the presence of coarse particles with a mean diameter d > 0.1 mm may lead to dislocation of particles in the internal structure, thereby causing the yield stress and viscosity of the material to decrease. Copyright © 2010 by The International Society of Offshore and Polar Engineers (ISOPE).en_HK
dc.languageengen_HK
dc.publisherInternational Society of Offshore and Polar Engineers.en_HK
dc.relation.ispartofProceedings of the International Offshore and Polar Engineering Conferenceen_HK
dc.subjectBingham plasticen_HK
dc.subjectMud rheologyen_HK
dc.subjectPower-law modelen_HK
dc.titleRheological properties of some marine muds dredged from China coastsen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-6189&volume=2&spage=455&epage=461&date=2010&atitle=Rheological+properties+of+some+marine+muds+dredged+from+China+coastsen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-77956327938en_HK
dc.identifier.hkuros171551en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77956327938&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume2en_HK
dc.identifier.spage455en_HK
dc.identifier.epage461en_HK
dc.publisher.placeUnited Statesen_HK
dc.description.otherThe 12th International Offshore and Polar Engineering Conference (ISOPE 2010), Beijing, China, 20-25 June 2010. In Proceedings Of The International Offshore And Polar Engineering Conference, 2010, v. 2, p. 455-461-
dc.identifier.scopusauthoridZhang, X=13410231200en_HK
dc.identifier.scopusauthoridBai, Y=7402572067en_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK

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