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The influence of materials on the breaching process of natural dams
Jiang Xiangang1,2,3; Huang Jiahua4; Wei Yunwei1; Niu Zhipan5,6; Chen Fenghui1,2; Zou Zuyin1; Zhu Zhanyuan1
2018-02-01
Source PublicationLANDSLIDES
ISSN1612-510X
Volume15Issue:2Pages:243-255
AbstractIn this study, a series of natural dam overtopping laboratory tests are reported. In these tests, the effect of seven different sediment mixtures on the breaching process was investigated. According to the test results, three stages of the breaching process of natural dams made of different materials were observed. Backward erosion was the primary cause for the incising slopes. The effects of backward erosion became stronger with the larger fines contents of the materials. With an increase in the median diameter (d (50)) of particles, the breaching time became longer. However, the peak discharge became smaller. With an increase in the fines contents (p), the median diameter of the particles and the void ratio were changed, which resulted in a decrease in the breaching time and an increase in the peak discharge. The breaching time and peak discharge were more sensitive to the median diameter than to the fines contents. The relation between breach width and depth was found to follow a logistic function . The parameters zeta, k, and D (0) are defined by a linear relationship with the median diameter and fines content. A breach of the side slope occurred as a tensile failure when the fines contents of the materials were large; otherwise, shear failure occurred. Furthermore, when the materials had fewer fines contents, the volume of the collapsed breach side slope became larger.
KeywordNatural dams Materials Breaching process Breach
DOI10.1007/s10346-017-0877-9
WOS KeywordGRAIN-SIZE DISTRIBUTION ; LIVED LANDSLIDE DAM ; LABORATORY EXPERIMENTS ; HSIAOLIN VILLAGE ; SHEAR-STRENGTH ; MIXTURES ; EMBANKMENTS ; EARTHQUAKE ; FAILURE ; TAIWAN
Language英语
Funding ProjectOpen fund of Key Laboratory of mountain hazards and surface processes, Chinese Academy of Sciences[KLMHESP-17-05] ; National Fundamental Scientific Research Grant of China[41672304] ; National Fundamental Scientific Research Grant of China[51409181]
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000423999700005
Funding OrganizationOpen fund of Key Laboratory of mountain hazards and surface processes, Chinese Academy of Sciences ; National Fundamental Scientific Research Grant of China
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/20880
Collection山地灾害与地表过程重点实验室
Corresponding AuthorJiang Xiangang
Affiliation1.Sichuan Agr Univ, Coll Civil Engn, Chengdu 611830, Sichuan, Peoples R China
2.Sichuan Agr Univ, Sichuan Higher Educ Engn Res Ctr Disaster Prevent, Chengdu 611830, Sichuan, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610044, Sichuan, Peoples R China
4.Univ Duisburg Essen, Dept Civil Engn, D-47057 Duisburg, Germany
5.Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Sichuan, Peoples R China
6.China Three Gorges Projects Dev Co Ltd, Chengdu 610041, 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
Jiang Xiangang,Huang Jiahua,Wei Yunwei,et al. The influence of materials on the breaching process of natural dams[J]. LANDSLIDES,2018,15(2):243-255.
APA Jiang Xiangang.,Huang Jiahua.,Wei Yunwei.,Niu Zhipan.,Chen Fenghui.,...&Zhu Zhanyuan.(2018).The influence of materials on the breaching process of natural dams.LANDSLIDES,15(2),243-255.
MLA Jiang Xiangang,et al."The influence of materials on the breaching process of natural dams".LANDSLIDES 15.2(2018):243-255.
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