IMHE OpenIR  > 山地灾害与地表过程重点实验室
Early warning model for slope debris flow initiation
Li, Ming-li1,2; Jiang, Yuan-jun1; Yang, Tao3; Huang, Qiang-bing4; Qiao, Jian-ping1; Yang, Zong-ji1
2018
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume15Issue:6Pages:1342-1353
SubtypeArticle
Contribution Rank1
AbstractEarly warning model of debris flow is important for providing local residents with reliable and accurate warning information to escape from debris flow hazards. This research studied the debris flow initiation in the Yindongzi gully in Dujiangyan City, Sichuan province, China with scaled-down model experiments. We set rainfall intensity and slope angle as dominating parameters and carried out 20 scaled-down model tests under artificial rainfall conditions. The experiments set four slope angles (32A degrees, 34A degrees, 37A degrees, 42A degrees) and five rainfall intensities (60 mm/h, 90 mm/h, 120 mm/h, 150 mm/h, and 180 mm/h) treatments. The characteristic variables in the experiments, such as, rainfall duration, pore water pressure, moisture content, surface inclination, and volume were monitored. The experimental results revealed the failure mode of loose slope material and the process of slope debris flow initiation, as well as the relationship between the surface deformation and the physical parameters of experimental model. A traditional rainfall intensity-duration early warning model (I-D model) was firstly established by using a mathematical regression analysis, and it was then improved into ISD model and ISM model (Here, I is rainfall Intensity, S is Slope angle, D is rainfall Duration, and M is Moisture content). The warning model can provide reliable early warning of slope debris flow initiation.
KeywordSlope debris flow Artificial rainfall model Early warning model Model experiment
DOI10.1007/s11629-017-4779-z
Indexed BySCI
WOS KeywordSHALLOW LANDSLIDES ; WENCHUAN EARTHQUAKE ; RAINFALL THRESHOLDS ; INTENSITY
Language英语
Quartile4区
Funding ProjectCAS Pioneer Hundred Talents Program ; Institute of Mountain Hazards and Environment[SDS-135-1705] ; National Natural Science Foundation of China[41771021] ; National Natural Science Foundation of China[41471429] ; National Natural Science Foundation of China[41790443] ; National Key Research and Development Program of China[2017YFD0800501]
TOP
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000435362700014
Funding OrganizationCAS Pioneer Hundred Talents Program ; Institute of Mountain Hazards and Environment ; National Natural Science Foundation of China ; National Key Research and Development Program of China
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23322
Collection山地灾害与地表过程重点实验室
Corresponding AuthorJiang, Yuan-jun
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Sichuan Bur Geol & Mineral Resources, Chengdu Ctr Hydrogeol & Engn Geol, Chengdu 610000, Sichuan, Peoples R China;
4.Changan Univ, Dept Geol Engn, Xian 710054, Shaanxi, 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
Li, Ming-li,Jiang, Yuan-jun,Yang, Tao,et al. Early warning model for slope debris flow initiation[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(6):1342-1353.
APA Li, Ming-li,Jiang, Yuan-jun,Yang, Tao,Huang, Qiang-bing,Qiao, Jian-ping,&Yang, Zong-ji.(2018).Early warning model for slope debris flow initiation.JOURNAL OF MOUNTAIN SCIENCE,15(6),1342-1353.
MLA Li, Ming-li,et al."Early warning model for slope debris flow initiation".JOURNAL OF MOUNTAIN SCIENCE 15.6(2018):1342-1353.
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