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The 12 May Wenchuan earthquake-induced landslide lakes: distribution and preliminary risk evaluation
Cui, Peng1,2; Zhu, Ying-yan1,2; Han, Yong-shun3; Chen, Xiao-qing1,2; Zhuang, Jian-qi1,2
Corresponding AuthorPeng Cui
2009-09-01
Source PublicationLANDSLIDES
ISSN1612-510X
Volume6Issue:3Pages:209-223
SubtypeArticle
AbstractThe Wenchuan earthquake, measured at M (s) 8.0 according to the China Earthquake Administration, occurred at 14:28 on 12 May 2008 in the Sichuan Province of China. It brought overwhelming destruction to eight provinces and cities. Landslides and rock avalanches triggered by the earthquake produced 257 landslide lakes which were distributed along the fault rupture zone and river channels. The authors traveled to the disaster zone immediately after the earthquake to examine some of the features of the debris dams and performed a quick evaluation of the potential for outburst of earthquake-induced landslide lakes for the purpose of disaster relief. The preliminary analysis indicated that the landslide lakes could be classified as those exhibiting extremely high risk, medium risk, and low risk according to field observations and remote sensing, to determine material composition, dam structure, dam height, maximum water storage capacity, and size of the population potentially affected area. The failure risk of 21 debris dams were evaluated as follows: one dam with an extremely high danger risk, seven dams with a high danger, five dams with a medium danger, and eight dams of low danger. More concern was given to the Tangjiashan Lake and different scenarios for the potential sudden failure of its dam were assessed. The risk evaluation result was accepted in full, by the earthquake disaster relief office. A successful emergency dam treatment for risk reduction was planned, based on our assessments, and these measures were quickly carried out. According to this research, the earthquake destabilized the surrounding mountains, resulting in a prolonged geohazard for the area. Landslides and debris flows will continue to develop for at least 5 to 10 years after the Wenchuan earthquake and will produce additional dammed lakes. Recommendations and plans for earthquake-landslide lake mitigation were proposed, based on past successful practices.
KeywordWenchuan Earthquake Landslide Lake Flood Outburst Risk Evaluation
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10346-009-0160-9
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordDAMS ; RIVER ; CHINA
Language英语
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000269858800004
Funding OrganizationChinese Academy of Sciences((2008CB425802 ; KZCX2-YW-302)
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/2131
Collection成都山地所知识仓储(2009年以前)
山地灾害与地表过程重点实验室
Affiliation1.CAS, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.CAS, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
3.Hunan Univ Sci & Technol, Xiangtan, Peoples R China
Recommended Citation
GB/T 7714
Cui, Peng,Zhu, Ying-yan,Han, Yong-shun,et al. The 12 May Wenchuan earthquake-induced landslide lakes: distribution and preliminary risk evaluation[J]. LANDSLIDES,2009,6(3):209-223.
APA Cui, Peng,Zhu, Ying-yan,Han, Yong-shun,Chen, Xiao-qing,&Zhuang, Jian-qi.(2009).The 12 May Wenchuan earthquake-induced landslide lakes: distribution and preliminary risk evaluation.LANDSLIDES,6(3),209-223.
MLA Cui, Peng,et al."The 12 May Wenchuan earthquake-induced landslide lakes: distribution and preliminary risk evaluation".LANDSLIDES 6.3(2009):209-223.
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