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Article: Irrigation-induced loess flow failure in Heifangtai Platform, North-West China
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TitleIrrigation-induced loess flow failure in Heifangtai Platform, North-West China
 
AuthorsXu, L3
Dai, FC3
Gong, QM1
Tham, LG2
Min, H4
 
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
 
CitationEnvironmental Earth Sciences, 2011, p. 1-7 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12665-011-0950-y
 
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.
 
ISSN1866-6280
2013 Impact Factor: 1.572
2013 SCImago Journal Rankings: 0.724
 
DOIhttp://dx.doi.org/10.1007/s12665-011-0950-y
 
ISI Accession Number IDWOS:000305687400012
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 FieldValue
dc.contributor.authorXu, L
 
dc.contributor.authorDai, FC
 
dc.contributor.authorGong, QM
 
dc.contributor.authorTham, LG
 
dc.contributor.authorMin, H
 
dc.date.accessioned2012-06-26T06:05:37Z
 
dc.date.available2012-06-26T06:05:37Z
 
dc.date.issued2011
 
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.
 
dc.description.naturelink_to_subscribed_fulltext
 
dc.identifier.citationEnvironmental Earth Sciences, 2011, p. 1-7 [How to Cite?]
DOI: http://dx.doi.org/10.1007/s12665-011-0950-y
 
dc.identifier.doihttp://dx.doi.org/10.1007/s12665-011-0950-y
 
dc.identifier.epage7
 
dc.identifier.isiWOS:000305687400012
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.identifier.issn1866-6280
2013 Impact Factor: 1.572
2013 SCImago Journal Rankings: 0.724
 
dc.identifier.scopuseid_2-s2.0-84862877819
 
dc.identifier.spage1
 
dc.identifier.urihttp://hdl.handle.net/10722/150549
 
dc.languageeng
 
dc.publisherSpringer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665
 
dc.publisher.placeGermany
 
dc.relation.ispartofEnvironmental Earth Sciences
 
dc.subjectAgricultural Irrigation
 
dc.subjectLaboratory Test
 
dc.subjectLoess Flow
 
dc.subjectLoess Platform
 
dc.titleIrrigation-induced loess flow failure in Heifangtai Platform, North-West China
 
dc.typeArticle
 
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<item><contributor.author>Xu, L</contributor.author>
<contributor.author>Dai, FC</contributor.author>
<contributor.author>Gong, QM</contributor.author>
<contributor.author>Tham, LG</contributor.author>
<contributor.author>Min, H</contributor.author>
<date.accessioned>2012-06-26T06:05:37Z</date.accessioned>
<date.available>2012-06-26T06:05:37Z</date.available>
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<description.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&#160;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. &#169; 2011 Springer-Verlag.</description.abstract>
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Author Affiliations
  1. Beijing University of Technology
  2. The University of Hong Kong
  3. Institute of Geology and Geophysics Chinese Academy of Sciences
  4. Chinese Academy of Sciences