Article: Irrigation-induced loess flow failure in Heifangtai Platform, North-West China
| Title | Irrigation-induced loess flow failure in Heifangtai Platform, North-West China | ||||
|---|---|---|---|---|---|
| Authors | Xu, L3 Dai, FC3 Gong, QM1 Tham, LG2 Min, H3 | ||||
| Keywords | Agricultural Irrigation Laboratory Test Loess Flow Loess Platform | ||||
| Issue Date | 2011 | ||||
| Publisher | Springer. 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?] DOI: http://dx.doi.org/10.1007/s12665-011-0950-y | ||||
| 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. | ||||
| ISSN | 1866-6280 2011 Impact Factor: 1.059 2011 SCImago Journal Rankings: 0.048 | ||||
| DOI | http://dx.doi.org/10.1007/s12665-011-0950-y | ||||
| ISI Accession Number ID | WOS:000305687400012
Funding Information: The financial support of the Research Grants Council, HKSARG (Project No: HKU7140/08E) is acknowledged. |
| dc.contributor.author | Xu, L | ||||
|---|---|---|---|---|---|
| dc.contributor.author | Dai, FC | ||||
| dc.contributor.author | Gong, QM | ||||
| dc.contributor.author | Tham, LG | ||||
| dc.contributor.author | Min, H | ||||
| dc.date.accessioned | 2012-06-26T06:05:37Z | ||||
| dc.date.available | 2012-06-26T06:05:37Z | ||||
| dc.date.issued | 2011 | ||||
| dc.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 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.nature | Link_to_subscribed_fulltext | ||||
| dc.identifier.citation | Environmental Earth Sciences, 2011, p. 1-7 [How to Cite?] DOI: http://dx.doi.org/10.1007/s12665-011-0950-y | ||||
| dc.identifier.doi | http://dx.doi.org/10.1007/s12665-011-0950-y | ||||
| dc.identifier.epage | 7 | ||||
| dc.identifier.isi | WOS:000305687400012
Funding Information: The financial support of the Research Grants Council, HKSARG (Project No: HKU7140/08E) is acknowledged. | ||||
| dc.identifier.issn | 1866-6280 2011 Impact Factor: 1.059 2011 SCImago Journal Rankings: 0.048 | ||||
| dc.identifier.scopus | eid_2-s2.0-84862877819 | ||||
| dc.identifier.spage | 1 | ||||
| dc.identifier.uri | http://hdl.handle.net/10722/150549 | ||||
| dc.language | eng | ||||
| dc.publisher | Springer. The Journal's web site is located at http://www.springer.com/earth+sciences/geology/journal/12665 | ||||
| dc.publisher.place | Germany | ||||
| dc.relation.ispartof | Environmental Earth Sciences | ||||
| dc.subject | Agricultural Irrigation | ||||
| dc.subject | Laboratory Test | ||||
| dc.subject | Loess Flow | ||||
| dc.subject | Loess Platform | ||||
| dc.title | Irrigation-induced loess flow failure in Heifangtai Platform, North-West China | ||||
| dc.type | Article |
Author Affiliations
- Beijing University of Technology
- The University of Hong Kong
- Chinese Academy of Sciences