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Article: Irrigation-induced loess flow failure in Heifangtai Platform, North-West China

TitleIrrigation-induced loess flow failure in Heifangtai Platform, North-West China
Authors
KeywordsAgricultural Irrigation
Laboratory Test
Loess Flow
Loess Platform
Issue Date2011
PublisherSpringer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665
Citation
Environmental Earth Sciences, 2011, p. 1-7 How to Cite?
Abstract
Because the construction of dams and hydro-electric power stations of Liujiaxia and Yanguoxia across the Yellow River in West Gansu Province, North-West China, inhabitants in the reservoir areas were resettled in Heifangtai Loess Platform. Irrigation thus started in 1968. Perched water table was significantly raised and resulted in many loess flow failures in the past 30 years. This type of landslide was often featured by long runout distance, high speed and recurrence. Laboratory tests along ICU and CSD stress paths were performed. It is shown that the loess has a strong strain-softening behavior and instability can occur in drained condition before undrained liquefaction. The failure mechanism of loess flow can be interpreted as the following process: with increasing perched water table, collapse in loess was first triggered in drained condition and led to undrained loading to adjacent soil in the lower saturated part of the loess platform. Under gravity loading applied by upper dry loess, undrained flow failure mobilized, eventually. © 2011 Springer-Verlag.
Persistent Identifierhttp://hdl.handle.net/10722/150549
ISSN
2013 Impact Factor: 1.572
2013 SCImago Journal Rankings: 0.724
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council, HKSARGHKU7140/08E
Funding Information:

The financial support of the Research Grants Council, HKSARG (Project No: HKU7140/08E) is acknowledged.

 

DC FieldValueLanguage
dc.contributor.authorXu, Len_US
dc.contributor.authorDai, FCen_US
dc.contributor.authorGong, QMen_US
dc.contributor.authorTham, LGen_US
dc.contributor.authorMin, Hen_US
dc.date.accessioned2012-06-26T06:05:37Z-
dc.date.available2012-06-26T06:05:37Z-
dc.date.issued2011en_US
dc.identifier.citationEnvironmental Earth Sciences, 2011, p. 1-7en_US
dc.identifier.issn1866-6280en_US
dc.identifier.urihttp://hdl.handle.net/10722/150549-
dc.description.abstractBecause the construction of dams and hydro-electric power stations of Liujiaxia and Yanguoxia across the Yellow River in West Gansu Province, North-West China, inhabitants in the reservoir areas were resettled in Heifangtai Loess Platform. Irrigation thus started in 1968. Perched water table was significantly raised and resulted in many loess flow failures in the past 30 years. This type of landslide was often featured by long runout distance, high speed and recurrence. Laboratory tests along ICU and CSD stress paths were performed. It is shown that the loess has a strong strain-softening behavior and instability can occur in drained condition before undrained liquefaction. The failure mechanism of loess flow can be interpreted as the following process: with increasing perched water table, collapse in loess was first triggered in drained condition and led to undrained loading to adjacent soil in the lower saturated part of the loess platform. Under gravity loading applied by upper dry loess, undrained flow failure mobilized, eventually. © 2011 Springer-Verlag.en_US
dc.languageengen_US
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665en_US
dc.relation.ispartofEnvironmental Earth Sciencesen_US
dc.subjectAgricultural Irrigationen_US
dc.subjectLaboratory Testen_US
dc.subjectLoess Flowen_US
dc.subjectLoess Platformen_US
dc.titleIrrigation-induced loess flow failure in Heifangtai Platform, North-West Chinaen_US
dc.typeArticleen_US
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_US
dc.identifier.authorityTham, LG=rp00176en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s12665-011-0950-yen_US
dc.identifier.scopuseid_2-s2.0-84862877819-
dc.identifier.spage1en_US
dc.identifier.epage7en_US
dc.identifier.isiWOS:000305687400012-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridXu, L=36132437900en_US
dc.identifier.scopusauthoridDai, FC=7102055666en_US
dc.identifier.scopusauthoridGong, QM=24080084900en_US
dc.identifier.scopusauthoridTham, LG=7006213628en_US
dc.identifier.scopusauthoridMin, H=34973198300en_US

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