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Article: Slope failure in underconsolidated soft soils during the development of a port in Tianjin, China. Part 1: Field investigation

TitleSlope failure in underconsolidated soft soils during the development of a port in Tianjin, China. Part 1: Field investigation
Authors
KeywordsPort development
Land reclamation
Dredge excavation
Landslide investigation
Soft soils
Issue Date2005
PublisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cgj
Citation
Canadian Geotechnical Journal, 2005, v. 42 n. 1, p. 147-165 How to Cite?
AbstractThis paper presents the field investigation of a major landslide that occurred in a newly dredged slope for port development in the city of Tianjin, northern China. The dredged slope comprised underconsolidated soft clay of recent marine and river delta deposits. The landslide consisted of a number of individual slides that occurred sequentially and extended retrogressively and laterally into reclaimed land. It lasted for about 1 h, occupying a plan area that is about 200 m long and 150 m wide in the reclaimed land. The failed soil mass was estimated to have a volume of between 700 000 and 800 000 m3. Part of the failed soil mass slipped into a newly dredged open space in the sea. The distance of the debris travel into the berth was about 80 m. The debris surface had a gentle slope of about 3.0°. The angle from the dredged slope crest to the far edge of the debris was about 6.8°. A common rupture surface was found underneath the debris and above the in situ marine mud. It controlled the inland extension of the slope failure. The landslide occupied an inclined area of between 27 000 and 30 000 m2, with an overall slope angle of about 3–4°. A kinematic model is proposed to explain the extension of the landslide into the reclaimed land. Findings of this field investigation are further used in the companion paper for a theoretical investigation of the mechanism of the landslide. The engineering approach and results presented in this study could be useful in the design and construction of dredged slopes in underconsolidated soft soils.
Persistent Identifierhttp://hdl.handle.net/10722/42059
ISSN
2015 Impact Factor: 1.877
2015 SCImago Journal Rankings: 2.093
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, Sen_HK
dc.contributor.authorYue, ZQen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorLee, CFen_HK
dc.contributor.authorYan, SWen_HK
dc.date.accessioned2007-01-08T02:27:57Z-
dc.date.available2007-01-08T02:27:57Z-
dc.date.issued2005en_HK
dc.identifier.citationCanadian Geotechnical Journal, 2005, v. 42 n. 1, p. 147-165en_HK
dc.identifier.issn0008-3674en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42059-
dc.description.abstractThis paper presents the field investigation of a major landslide that occurred in a newly dredged slope for port development in the city of Tianjin, northern China. The dredged slope comprised underconsolidated soft clay of recent marine and river delta deposits. The landslide consisted of a number of individual slides that occurred sequentially and extended retrogressively and laterally into reclaimed land. It lasted for about 1 h, occupying a plan area that is about 200 m long and 150 m wide in the reclaimed land. The failed soil mass was estimated to have a volume of between 700 000 and 800 000 m3. Part of the failed soil mass slipped into a newly dredged open space in the sea. The distance of the debris travel into the berth was about 80 m. The debris surface had a gentle slope of about 3.0°. The angle from the dredged slope crest to the far edge of the debris was about 6.8°. A common rupture surface was found underneath the debris and above the in situ marine mud. It controlled the inland extension of the slope failure. The landslide occupied an inclined area of between 27 000 and 30 000 m2, with an overall slope angle of about 3–4°. A kinematic model is proposed to explain the extension of the landslide into the reclaimed land. Findings of this field investigation are further used in the companion paper for a theoretical investigation of the mechanism of the landslide. The engineering approach and results presented in this study could be useful in the design and construction of dredged slopes in underconsolidated soft soils.en_HK
dc.format.extent1890768 bytes-
dc.format.extent4105 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypetext/plain-
dc.languageengen_HK
dc.publisherN R C Research Press. The Journal's web site is located at http://pubs.nrc-cnrc.gc.ca/cgi-bin/rp/rp2_desc_e?cgjen_HK
dc.rightsCanadian Geotechnical Journal. Copyright © N R C Research Press.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPort developmenten_HK
dc.subjectLand reclamationen_HK
dc.subjectDredge excavationen_HK
dc.subjectLandslide investigationen_HK
dc.subjectSoft soilsen_HK
dc.titleSlope failure in underconsolidated soft soils during the development of a port in Tianjin, China. Part 1: Field investigationen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0008-3674&volume=42&issue=1&spage=147&epage=165&date=2005&atitle=Slope+failure+in+underconsolidated+soft+soils+during+the+development+of+a+port+in+Tianjin,+China.+Part+1:+Field+investigationen_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1139/T04-089en_HK
dc.identifier.scopuseid_2-s2.0-19944424508-
dc.identifier.hkuros102317-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-19944424508&selection=ref&src=s&origin=recordpage-
dc.identifier.isiWOS:000227613300012-
dc.identifier.scopusauthoridLi, S=18434403800-
dc.identifier.scopusauthoridYue, ZQ=7102782735-
dc.identifier.scopusauthoridTham, LG=7006213628-
dc.identifier.scopusauthoridLee, CF=8068602600-
dc.identifier.scopusauthoridYan, SW=7401744747-

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