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Numerical and experimental study on the formation mode of a landslide dam and its influence on dam breaching
Zhao, G. -W.1,2; Jiang, Y. -J.1; Qiao, J. -P.1; Yang, Z. -J.1; Ding, P. -P.1,2
Corresponding AuthorJiang, Y. -J.(yuanjun.jiang.civil@gmail.com)
2019-06-01
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
Volume78Issue:4Pages:2519-2533
AbstractThe deposition morphology of a landslide dam determines the position of initial breach and sequentially affects the direction of lateral erosion. Twenty-seven discrete element numerical simulations were carried out to investigate the deposition morphology of landslide dams concerning three factors, which include the valley shape, the valley bed inclination and the landslide velocity. The simulation results show that the valley shape and the landslide velocity affect the dam morphology in both transverse and longitudinal directions, while the valley bed inclination mainly affects the longitudinal morphology of dams. Further, a flume experiment was carried out to investigate the specific effects of the dam morphology on the overtopping erosion of landslide dams. The results of experiment show that for the dams in different deposition morphologies and with different initial breaches, the breach widths and the total sediment discharges induced by overtopping erosion are different.
KeywordLandslide Landslide dam Debris flow Overtopping erosion Discrete element method
DOI10.1007/s10064-018-1255-0
Indexed BySCI
WOS KeywordWENCHUAN EARTHQUAKE ; HSIAOLIN VILLAGE ; DEBRIS FLOW ; FAILURE ; PREDICTION ; TAIWAN
Language英语
Funding ProjectCAS Pioneer Hundred Talents Program, National Natural Science Foundation for Young Scientists of China[41502334] ; CAS Pioneer Hundred Talents Program, National Natural Science Foundation for Young Scientists of China[41471012]
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000468075000024
Funding OrganizationCAS Pioneer Hundred Talents Program, National Natural Science Foundation for Young Scientists of China
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26227
Collection山地灾害与地表过程重点实验室
Corresponding AuthorJiang, Y. -J.
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, 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
GB/T 7714
Zhao, G. -W.,Jiang, Y. -J.,Qiao, J. -P.,et al. Numerical and experimental study on the formation mode of a landslide dam and its influence on dam breaching[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(4):2519-2533.
APA Zhao, G. -W.,Jiang, Y. -J.,Qiao, J. -P.,Yang, Z. -J.,&Ding, P. -P..(2019).Numerical and experimental study on the formation mode of a landslide dam and its influence on dam breaching.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(4),2519-2533.
MLA Zhao, G. -W.,et al."Numerical and experimental study on the formation mode of a landslide dam and its influence on dam breaching".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.4(2019):2519-2533.
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