IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleRisk Assessment Based on Morphological Characteristics of Debris Flow Alluvial Fan
李彦稷1,2,3; 胡凯衡1,2
Corresponding Author胡凯衡
Source Publication山地学报
Other Abstract



In the mountainous areas it is quite common for people to settle on the stretch of alluvial fans consisted primarily of debris flow sedimentation,where specific settlements are highly vulnerable than other places in case of debris flow strike.A scientific risk assessment of the alluvial fan would be of great significance in the later commercial exploitation of the fan. Aimed to Dabaini Gully of Xiaojiang basin,Yunnan as a case study,this research completed field surveys and performed an integrated analysis of disaster formations,and then two factors,the morphological characteristics of debris flow alluvial fan with occurrence frequency of debris flow were combined to introduce a quantitative risk distribution model of the fan,which depended on three variable parameters,the distance from fan apex,the angle between fan's main axis and the occurrence frequency.Results confirmed: (1) Damages incurred by debris flow strike lied in the relative position of the settlement to the debris flow gully.Settlements located at a site far from the gully mouth,or at a larger separation angle with the mainstream line of debris flow would be less danger; (2) The application of the model to Dabaini Gully verified that a fine agreement between the field observation with the modeling was established,justifying the validation of the model; (3) Involved parameters of the model referred to the distance from fan apex,the included angle from fan axis and occurrence frequency,where all those values can be readily acquired by remote sensing and GIS analysis.The work provided a simple and convenient calculation method for risk assessment of debris flow fan.

Keyword泥石流 扇形地 危险性评估 遥感
Subject AreaP642.23
Indexed ByCSCD ; 北大中文核心
Funding Organization国家自然科学基金面上项目(41371039) ; 国家重点基础研究发展计划( 2015CB452704) ; 中国科学院山地灾害与地表过程重点实验室开放基金
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
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
李彦稷,胡凯衡. 基于扇形地形态特征的泥石流危险评估[J]. 山地学报,2017,35(1):32-38.
APA 李彦稷,&胡凯衡.(2017).基于扇形地形态特征的泥石流危险评估.山地学报,35(1),32-38.
MLA 李彦稷,et al."基于扇形地形态特征的泥石流危险评估".山地学报 35.1(2017):32-38.
Files in This Item:
File Name/Size DocType Version Access License
5-基于扇形地形态特征的泥石流危险评估_(836KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[李彦稷]'s Articles
[胡凯衡]'s Articles
Baidu academic
Similar articles in Baidu academic
[李彦稷]'s Articles
[胡凯衡]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[李彦稷]'s Articles
[胡凯衡]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 5-基于扇形地形态特征的泥石流危险评估_李彦稷_胡凯衡.pdf
Format: Adobe PDF
All comments (0)
No comment.

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