Emergency response to the Tangjiashan landslide-dammed lake resulting from the 2008 Wenchuan Earthquake, China

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

	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 Yu 2
刊名	LANDSLIDES
	2011-03-01
卷号	8 期号:1 页码:91-98
关键词	Wenchuan Earthquake Landslide-dammed lake Emergency response Mitigation Artificially controlled failure
ISSN号	1612-510X
通讯作者	Chen, XQ
英文摘要	Natural 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.
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Geological ; Geosciences, Multidisciplinary
研究领域[WOS]	Engineering ; Geology
关键词[WOS]	DAMS ; BREAK ; FLOOD ; RIVER
收录类别	SCI
语种	英语
WOS记录号	WOS:000288178200007
公开日期	2013-06-25
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5517]
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
作者单位	1.CAS, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China 2.CAS, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式 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.