IMHE OpenIR  > 山地灾害与地表过程重点实验室
Impact characteristics of gustiness debris flow on check dam
Language英语
Jiang X.G.1,2; Liu F.W.1; Hu K.H.2; Liu T.1; Wang H.J.1; Li L.1; Zheng S.Y.1; Chen Y.1; Song S.J.1; Wang Y.D.1
2019
Source PublicationIOP Conference Series: Materials Science and Engineering
Volume657
Issue1
Pages12013
meeting2nd International Conference on Numerical Modelling in Engineering
Conference DateAugust 19, 2019 - August 22, 2019
Conference PlaceBeijing
CountryChina
PublisherInstitute of Physics Publishing
Contribution Rank2
AbstractThe gustiness is a common motion form of debris flow, especially viscous debris flow. However, few researches have considered the gustiness into the impact characteristics of debris flow, which needs further research. In this study, the check dam was used as the load receptor to study the impact characteristics of gustiness debris flow. The results show that, under the same general flow depth, the dam stress considering the impact of gustiness debris flow is far less than that of disposable continuous debris flow. The impact force increases with the increase of the times of gustiness debris flow, and the impact torque increases linearly. Under the impact of gustiness debris flow, the displacement and stress of the dam vary in the same rule. The safety factors of anti-sliding and anti-overturning of the dam under the effect of gustiness debris flow are larger than those of disposable continuous debris flow, and the decrease rate of the safety factors increases with the increase of the times of gustiness debris flow. And under the condition of the same total flow depth, the increase of the debris flow depth can significantly decrease the stability of dam. The conclusions can provide reference for the design of blocking structures of gustiness and frequent debris flow. © Published under licence by IOP Publishing Ltd.
KeywordAnti-overturning Debris flows Decrease rate Displacement and stress Flow depth Impact characteristics Impact force Viscous debris flows
DOI10.1088/1757-899X/657/1/012013
ISSN17578981
EISSN1757899X
Indexed ByEI
Accession numberAccession number:20194607685964
Citation statistics
Document Type会议论文
Identifierhttp://ir.imde.ac.cn/handle/131551/33433
Collection山地灾害与地表过程重点实验室
Corresponding AuthorJiang X.G.
Affiliation1.College of Civil Engineering, Sichuan Agricultural University, Dujiangyan, 611830, China;
2.Key Laboratory of Mountain Hazards and Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, 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
Jiang X.G.,Liu F.W.,Hu K.H.,et al. Impact characteristics of gustiness debris flow on check dam[C]:Institute of Physics Publishing,2019:12013.
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