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Some considerations on the use of numerical methods to simulate past landslides and possible new failures: the case of the recent Xinmo landslide (Sichuan, China)
Scaringi Gianvito1,2; Fan Xuanmei1,2; Xu Qiang1,2; Liu Chun3; Ouyang Chaojun4; Domènech Guillem1; Yang Fan1; Dai Lanxin1
Corresponding AuthorScaringi Gianvito ; Fan Xuanmei ; Xu Qiang
2018
Source PublicationLANDSLIDES
ISSN1612-510X
EISSN1612-5118
Volume15Issue:7Pages:1359-1375
SubtypeArticle
Contribution Rank4
AbstractRock avalanches represent a serious risk for human lives, properties, and infrastructures. On June 24, 2017, a catastrophic landslide destroyed the village of Xinmo (Maoxian County, Sichuan, China) causing a large number of fatalities. Adjacent to the landslide source area, further potentially unstable masses were identified. Among them, a 4.5-million m(3) body, displaced during the landslide event by about 40 m, raised serious concerns. Field monitoring and a reliable secondary risk assessment are fundamental to protect the infrastructure and the population still living in the valley. In this framework, the use of distinct element methods and continuum model methods to simulate the avalanche process was discussed. Various models (PFC, MatDEM, MassMov2D, Massflow) were used with the aim of reproducing the Xinmo landslide and, as predictive tools, simulating the kinematics and runout of the potentially unstable mass, which could cause a new catastrophic event. The models were all able to reproduce the first-order characteristics of the landslide kinematics and the morphology of the deposit, but with computational times differing by several orders of magnitude. More variability of the results was obtained from the simulations of the potential secondary failure. However, all models agreed that the new landslide could invest several still-inhabited buildings and block the course of the river again. Comparison and discussion of the performances and usability of the models could prove useful towards the enforcement of physically based (and multi-model) risk assessments and mitigation countermeasures.
KeywordLandslide Numerical modeling Landslide risk assessment Rock avalanche Discrete element method Continuum model method
DOI10.1007/s10346-018-0953-9
Indexed BySCI ; EI
Language英语
WOS IDWOS:000437140700008
EI Accession NumberAccession number: 20180804827456
Accession numberAccession number: 20180804827456
Citation statistics
Cited Times:53[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20908
Collection山地灾害与地表过程重点实验室
Affiliation1.The State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (SKLGP), Chengdu University of Technology, Chengdu; Sichuan;
2.Chengdu University of Technology, Chengdu; Sichuan;
3.Nanjing University, Nanjing;
4.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu
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Scaringi Gianvito,Fan Xuanmei,Xu Qiang,et al. Some considerations on the use of numerical methods to simulate past landslides and possible new failures: the case of the recent Xinmo landslide (Sichuan, China)[J]. LANDSLIDES,2018,15(7):1359-1375.
APA Scaringi Gianvito.,Fan Xuanmei.,Xu Qiang.,Liu Chun.,Ouyang Chaojun.,...&Dai Lanxin.(2018).Some considerations on the use of numerical methods to simulate past landslides and possible new failures: the case of the recent Xinmo landslide (Sichuan, China).LANDSLIDES,15(7),1359-1375.
MLA Scaringi Gianvito,et al."Some considerations on the use of numerical methods to simulate past landslides and possible new failures: the case of the recent Xinmo landslide (Sichuan, China)".LANDSLIDES 15.7(2018):1359-1375.
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