The Future in the Tangjiashan Dammed-Lake Resulted from the M8.0 Wenchuan Earthquake: Discussion on Several Scientific Issues

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 山地灾害与地表过程重点实验室

	The Future in the Tangjiashan Dammed-Lake Resulted from the M8.0 Wenchuan Earthquake: Discussion on Several Scientific Issues
	Zhi-man Su; Peng Cui
	2013
会议名称	International Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012
会议日期	November 7-9, 2012
会议地点	Kiryu, Japan
关键词	Dammed-lake Tangjiashan landslide Dam breaching Wenchuan Earthquake
页码	901-906
通讯作者	Zhi-man Su
中文摘要	The 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.
合作状况	国际
会议主办者	Keizo Ugai ; Hiroshi Yagi ; hiko Wakai
会议录	Earthquake-Induced Landslides
语种	英语
ISBN号	978-3-642-32237-2
内容类型	会议论文
源URL	[http://ir.imde.ac.cn/handle/131551/6617]
专题	成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
推荐引用方式 GB/T 7714	Zhi-man Su,Peng Cui. The Future in the Tangjiashan Dammed-Lake Resulted from the M8.0 Wenchuan Earthquake: Discussion on Several Scientific Issues[C]. 见:International Symposium on Earthquake-Induced Landslides, Kiryu, Japan, 2012. Kiryu, Japan. November 7-9, 2012.