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The Future in the Tangjiashan Dammed-Lake Resulted from the M8.0 Wenchuan Earthquake: Discussion on Several Scientific Issues
Language英语
Zhi-man Su; Peng Cui; Qing-qing Yang; Ugai Keizo; Fei Cai
Corresponding AuthorZhi-man Su
2013
Source PublicationInternational Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012 ; Earthquake-Induced Landslides
Pages901-906
Conference DateNovember 7-9, 2012
Conference PlaceKiryu, Japan
Funding OrganizationKeizo Ugai ; Hiroshi Yagi ; hiko Wakai
AbstractThe Tangjiashan dammed-lake is the largest dammed-lake induced by the M8.0 Wenchuan Earthquake on May 12, 2008 in Sichuan Province, China. The highest water level in  Tangjiasha dammed-lake once reached 743.10 m elevation, with a volume of about 2.466 9 108 m3. After a spillway being evacuated on the debris dam, water level fell to about 713 m, with a volume of about 0.86 ×10^8 m^3. After that, the dam succeeded in withstanding the impacts from floods or debris flows in following 3 years. Till September 2011, many  engineering countermeasures were adopted in strengthening the dam and a plan to transform the dammed-lake into an earthquake relic tourist spot was proposed. This paper discussed the influencing factors acting on the process of the Tangjiashan Dam breaching and pays special attention to the final stage when the erosion turned weaker and the water level got lower slowly. It was found that the slope of downstream face of dam and the river bed elevating in the site adjacent to the outlet during the process of breaching play  important roles in the cease of erosion. Recommendations in the future research in the Tangjishan dammed-lake are proposed.
KeywordDammed-lake Tangjiashan Landslide Dam Breaching Wenchuan Earthquake
DOI10.1007/978-3-642-32238-9_98
ISBN978-3-642-32237-2
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/6617
Collection山地灾害与地表过程重点实验室
Recommended Citation
GB/T 7714
Zhi-man Su,Peng Cui,Qing-qing Yang,et al. The Future in the Tangjiashan Dammed-Lake Resulted from the M8.0 Wenchuan Earthquake: Discussion on Several Scientific Issues[C],2013:901-906.
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