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Failure mechanisms and deformation processes of a high-locality landslide at Tonghua Town, Li County, China, 2017
Wang Dongpo1,2; Liu Mengliang1; Zhu Xing1; Ma Hongsheng3; Cheng Qiang3; Zhu Min2; Chen Zheng4; Ouyang Chaojun4
2020
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume17Issue:1Pages:165-177
SubtypeArticle
Contribution Rank4
AbstractHigh-locality landslides primarily occur in the upper zone of the failed slope, in which the slip surface is considerably higher than the foot of the slope. This paper discusses a high-locality landslide that occurred on August 8, 2017, on the left bank of Zagunao River in Tonghua Town, southwest China. The landslide, called the Tonghua landslide, originated on a 716-m-high hillslope, which was formed by preexisting glacial deposits. The main body of the landslide is currently suspended on hillslope, with a relative relief of 353 m and is undergoing progressive failure. The town of Tonghua is located downslope of this landslide, and hence, the landslide could cause severe damage, including casualties and the destruction of infrastructure. Very few mitigation measures have been implemented to reduce the potentially devastating consequences due to the high locality and continuous movement of the landslide. We conducted comprehensive studies including field investigations, aerial photographic interpretations, pluviometric regime analysis, and superficial displacement monitoring to understand the failure mechanism and evolutionary process of this ongoing landslide. Considering that a Ms 7.0 earthquake occurred in Jiuzhaigou, approximately 220 km northeast of Tonghua Town, on the same day as the landslide, and that sporadic but persistent rainfall occurred before slope failure, we believe that both the rainfall and the earthquake were potential triggers for this landslide. However, further studies are necessary to better understand the characteristics and to develop hazard mitigation strategies for this type of landslide.
KeywordHigh-locality landslide Glacial deposit Deformation processes Failure mechanisms
DOI10.1007/s10346-019-01260-1
Indexed BySCI ; EI
WOS KeywordWENCHUAN EARTHQUAKE ; XINMO LANDSLIDE ; SICHUAN ; REACTIVATION ; RAINFALL ; MAOXIAN ; FLOW
Language英语
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000512067600012
PublisherSPRINGER HEIDELBERG
EI Accession NumberAccession number:20193807444022
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33882
Collection山地灾害与地表过程重点实验室
Corresponding AuthorOuyang Chaojun
Affiliation1.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China;
2.Univ Trento, I-38100 Trento, Italy;
3.Sichuan Prov Transport Dept Highway Planning Surv, Chengdu 610000, Peoples R China;
4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wang Dongpo,Liu Mengliang,Zhu Xing,et al. Failure mechanisms and deformation processes of a high-locality landslide at Tonghua Town, Li County, China, 2017[J]. LANDSLIDES,2020,17(1):165-177.
APA Wang Dongpo.,Liu Mengliang.,Zhu Xing.,Ma Hongsheng.,Cheng Qiang.,...&Ouyang Chaojun.(2020).Failure mechanisms and deformation processes of a high-locality landslide at Tonghua Town, Li County, China, 2017.LANDSLIDES,17(1),165-177.
MLA Wang Dongpo,et al."Failure mechanisms and deformation processes of a high-locality landslide at Tonghua Town, Li County, China, 2017".LANDSLIDES 17.1(2020):165-177.
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