IMHE OpenIR  > 山地灾害与地表过程重点实验室
ANALYSIS OF THE CORRELATION BETWEEN FRACTAL DIMENSION OF GRAVELLY SOIL AND DEBRIS-FLOW INITIATION THROUGH IN-SITU EXPERIMENTS
Zhong, W.1,2; He, N.3; Cosgrove, T.4; Zhu, Y. J.3; Fu, L.3
Corresponding AuthorHe, N.(hn61886@163.com)
2019
Source PublicationAPPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH
ISSN1589-1623
Volume17Issue:4Pages:7573-7589
AbstractParticle size distribution of the gravelly soil in debris flow source area has a great impact on the formation mechanism of debris-flow. In order to explore the relationship between particle composition and debris flow initiation, we collected 182 soil samples from debris flow source areas. Sieving tests have been conducted in the laboratory to acquire the fundamental particle size distribution data. Subsequently, the fractal theory was employed to compute the fractal dimension of each soil sample, analyzing the results of calculation we found that the gravelly soil in debris flow source area is mainly concentrated in one fractal dimension, the value of which ranges from about 2.250 to 2.798. Comparing the results of calculation and sieving experimentation, the underlying relationship between particle composition and fractal dimension can be revealed: the particle compositions of the gravelly soil tend to remain uniform as the fractal dimension increases. On the basis of the calculation results, the in-situ artificial rainfall experiments can be designed and performed. Analyzing the phenomenon during the processes of the experiments, the initiation mechanism with different fractal dimensions can be preliminarily identified: The gravelly soil which can mobilise into debris flows exhibits significant criticality feature, and the gravelly soil with fractal dimension ranges from 2.4 to 2.6 are more susceptible to mobilise into debris flow, and the scale of the debris flow is relatively larger. For slopes with fractal dimension < 2.4, the possibility of mobilisation into debris flow is extremely low. When fractal dimension ranges from about 2.6 to 2.7, the density of the formed debris flow is relatively lower, under which the formation of debris flows exhibits significant intermittent characteristics.
Keyworddebris flow fractal theory particle size distribution initiation mechanism in-situ experiments disaster mitigation
DOI10.15666/aeer/1704_75737589
Indexed BySCI
WOS KeywordRAINFALL THRESHOLDS ; MODEL ; SIZE ; RUNOFF ; LANDSLIDE ; CLASSIFICATION ; MAGNITUDE ; DELIVERY ; SLOPE ; BASIN
Language英语
Funding ProjectNational Key R&D Program of China[2018YFC1505205] ; National Natural Science Foundation of China[41302284] ; National Natural Science Foundation of China[41661144028] ; Henan Polytechnic University[B2015-58] ; Henan Postdoctoral Foundation[19030069]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEcology ; Environmental Sciences
WOS IDWOS:000478066700026
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Henan Polytechnic University ; Henan Postdoctoral Foundation
PublisherCORVINUS UNIV BUDAPEST
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/26781
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHe, N.
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
3.Henan Polytech Univ, Sch Civil Engn, Jiaozuo 454003, Henan, Peoples R China
4.Univ Limerick, Dept Civil Engn & Mat Sci, Limerick, Ireland
First 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
Zhong, W.,He, N.,Cosgrove, T.,et al. ANALYSIS OF THE CORRELATION BETWEEN FRACTAL DIMENSION OF GRAVELLY SOIL AND DEBRIS-FLOW INITIATION THROUGH IN-SITU EXPERIMENTS[J]. APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH,2019,17(4):7573-7589.
APA Zhong, W.,He, N.,Cosgrove, T.,Zhu, Y. J.,&Fu, L..(2019).ANALYSIS OF THE CORRELATION BETWEEN FRACTAL DIMENSION OF GRAVELLY SOIL AND DEBRIS-FLOW INITIATION THROUGH IN-SITU EXPERIMENTS.APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH,17(4),7573-7589.
MLA Zhong, W.,et al."ANALYSIS OF THE CORRELATION BETWEEN FRACTAL DIMENSION OF GRAVELLY SOIL AND DEBRIS-FLOW INITIATION THROUGH IN-SITU EXPERIMENTS".APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH 17.4(2019):7573-7589.
Files in This Item:
File Name/Size DocType Version Access License
1704_75737589.pdf(1136KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhong, W.]'s Articles
[He, N.]'s Articles
[Cosgrove, T.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhong, W.]'s Articles
[He, N.]'s Articles
[Cosgrove, T.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhong, W.]'s Articles
[He, N.]'s Articles
[Cosgrove, T.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 1704_75737589.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.