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Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model
Qiao, Cheng1,2,3,4; Ou, Guoqiang1,2; Pan, Huali1,2
Corresponding AuthorPan, Huali(hlpan@imde.ac.cn)
2019-07-01
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
Volume78Issue:5Pages:3281-3294
AbstractHigh fluid content or pore-fluid pressure is generally the main reason for the triggering and high mobility of landslides. A catastrophic landslide occurred at Hongao construction waste dumpsite in the Guangming New District of Shenzhen, China, on Dec 20, 2015. Due to the high water content of soil in the source area, this landslide propagated over an extremely long travel distance, with maximum length and width of the affected area 1100m and 630m, respectively. High water content pesents a great challenge to numerical methods. In order to simultaneously include the evolution of the solid and fluid components in the mixture, a general two-phase mass flow model of Pudasaini (J Geophys Res 117: F03010, 2012) has been employed in our simulations. The complex interactions between the solid and fluid phases, including buoyancy, the virtual mass force, generalized drag and enhanced non-Newtonian viscous stress, are considered in this two-phase flow model. These are essential aspects in the motion of landslides consisting of viscous fluid and solid particles. Based on the actual geology and engineering conditions, runout characteristics of the Shenzhen landslide were analyzed numerically. The principal reasons for the long runout character and the inundation are discussed based on the physics-based model and high-resolution numerical results.
KeywordShenzhen landslide Long runout Two-phase mass flow model Pore-pressure Buoyancy force r.avaflow
DOI10.1007/s10064-018-1329-z
Indexed BySCI
WOS KeywordPORE-PRESSURE GENERATION ; GRAIN-SIZE ; MOBILITY ; MOTION
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC1502502] ; National Key R&D Program of China[2017YFC1502506] ; National Nature Science Foundation of China[41672318,51679229,41372331] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018405]
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000471237400017
Funding OrganizationNational Key R&D Program of China ; National Nature Science Foundation of China ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23506
Collection山地灾害与地表过程重点实验室
Corresponding AuthorPan, Huali
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Surface Proc & Hazards, Chengdu 610041, Sichuan, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Anhui Univ Sci & Technol, Huainan 232001, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
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
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Qiao, Cheng,Ou, Guoqiang,Pan, Huali. Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(5):3281-3294.
APA Qiao, Cheng,Ou, Guoqiang,&Pan, Huali.(2019).Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(5),3281-3294.
MLA Qiao, Cheng,et al."Numerical modelling of the long runout character of 2015 Shenzhen landslide with a general two-phase mass flow model".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.5(2019):3281-3294.
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