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Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet, China
Zhou, Jia-wen1; Cui, Peng2; Hao, Ming-hui3
Corresponding AuthorZhou, Jia-wen
2016
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume13Issue:1Pages:39-54
SubtypeArticle
AbstractThe 2000 Yigong landslide was one of the most catastrophic landslides worldwide, resulting in huge casualties and property losses. The dynamic process of the Yigong landslide was very complicated, especially for the initiation and entrainment mechanism during the landslide movement process. The topography, geological condition, traces left by the landslide, and distribution characteristics of the landslide deposits were determined by field investigations, combined with several years of monitoring the temperature and rainfall data in this region. The initiation mechanism of the Yigong landslide is presented. The main reasons for the landslide initiation are as follows: the strength reduction of rock masses (especially for the weak structural surface), the impact from years of freeze-thaw cycles, the superposition of glacier melting and heavy rainfall on the slope, and a slope that was almost at the limit state before the landslide. Laboratory tests and physical modeling experiments were carried out to study the entrainment process of this landslide. Combined with the topographic survey data and theoretical analyses, the entrainment mechanism during the movement process of the Yigong landslide is presented. The old landslide deposits on the lower slope collided with and were scraped by the high-speed debris avalanche, which resulted in the volume amplification of the landslide. The existence of water plays a key role during the landslide initiation and movement processes.
KeywordYigong Landslide Dynamic Process Initiation Mechanism Entrainment Water
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s10346-014-0553-2
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordWENCHUAN EARTHQUAKE ; ROCK AVALANCHE ; DEBRIS AVALANCHE ; CASITA-VOLCANO ; NEW-ZEALAND ; FLOW ; MODEL ; NICARAGUA ; MOVEMENT ; DYNAMICS
Language英语
Quartile2区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000369433900004
Funding OrganizationNational Natural Science Foundation of China(41472272 ; Science Foundation for Excellent Youth Scholars of Sichuan University(2013SCU04A07) ; 41030742 ; 41102194)
Citation statistics
Cited Times:70[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/15088
Collection山地灾害与地表过程重点实验室
Affiliation1.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610044, Sichuan, Peoples R China
3.Sichuan Univ, Coll Water Resources & Hydropower, Chengdu 610065, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Jia-wen,Cui, Peng,Hao, Ming-hui. Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet, China[J]. LANDSLIDES,2016,13(1):39-54.
APA Zhou, Jia-wen,Cui, Peng,&Hao, Ming-hui.(2016).Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet, China.LANDSLIDES,13(1),39-54.
MLA Zhou, Jia-wen,et al."Comprehensive analyses of the initiation and entrainment processes of the 2000 Yigong catastrophic landslide in Tibet, China".LANDSLIDES 13.1(2016):39-54.
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