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Emergency response to the Tangjiashan landslide-dammed lake resulting from the 2008 Wenchuan Earthquake, China
Chen, Xiao Qing1,2; Cui, Peng1,2; Li, Yong1,2; Zhao, Wan Yu2
Corresponding AuthorChen, XQ
2011
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume8Issue:1Pages:91-98
SubtypeArticle
AbstractNatural landslide dams triggered by earthquakes are a common feature and a significant hazard in high-relief, tectonically active areas. The great Wenchuan Earthquake of May 12, 2008 created 256 natural dams, of which 34 presented significant risks to downstream areas in the event of their uncontrolled failure. Out of the 34 large landslide dams that warranted mitigation, we discuss Tangjiashan landslide dam in detail. Emergency response to the Tangjiashan landslide-dammed lake in the following weeks and months successfully reduced the risk, and the advantages and disadvantages of various countermeasures that were applied are summarized here. Successful strategies relied on accurate scientific assessments, on timely execution of the countermeasures, and on the correct design of sluiceway (spillway) channels across the landslide dams. Retrospective assessment indicates that the following improvements would be more beneficial: (1) Sluiceway channels utilizing a combination of cross-section types, rather than simply trapezoidal in shape; (2) increased channel slope, which is more than the original gradient of the river; (3) better protection of inlets and outlets to control the planned incision rates; and (4) channels lined to better control the incision rate. We discuss applications of the concept of artificially controlled failure, and we submit these observations for the benefit of those responding to future seismic catastrophes.
KeywordWenchuan Earthquake Landslide-dammed Lake Emergency Response Mitigation Artificially Controlled Failure
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10346-010-0236-6
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordDAMS ; BREAK ; FLOOD ; RIVER
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000288178200007
Funding OrganizationNational Basic Research Program of China(2008CB425802) ; National Science Foundation of China(40501008)
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/5517
Collection山地灾害与地表过程重点实验室
Affiliation1.CAS, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China
2.CAS, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Chen, Xiao Qing,Cui, Peng,Li, Yong,et al. Emergency response to the Tangjiashan landslide-dammed lake resulting from the 2008 Wenchuan Earthquake, China[J]. LANDSLIDES,2011,8(1):91-98.
APA Chen, Xiao Qing,Cui, Peng,Li, Yong,&Zhao, Wan Yu.(2011).Emergency response to the Tangjiashan landslide-dammed lake resulting from the 2008 Wenchuan Earthquake, China.LANDSLIDES,8(1),91-98.
MLA Chen, Xiao Qing,et al."Emergency response to the Tangjiashan landslide-dammed lake resulting from the 2008 Wenchuan Earthquake, China".LANDSLIDES 8.1(2011):91-98.
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