IMHE OpenIR  > 山地灾害与地表过程重点实验室
Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China
Chen, Xingzhang1; Cui, Peng2; You, Yong2; Liu, Jinfeng2
Corresponding AuthorChen, Xingzhang
2012
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
EISSN1866-6299
Volume65Issue:4Pages:995-1003
SubtypeArticle
AbstractSubao River lies along the Beichuan-Yingxiu fault in Beichuan County, which has been heavily impacted by the Wenchuan earthquake on 12 May 2008 and has become sources of many geo-hazards. On 24 September 2008, a rainstorm triggered a large debris flow in the catchment, causing several deaths and significant damages. A case study on changes of the debris flow was conducted in the river. The peak discharges were calculated in the Guanmenzi, Huangnidi, and Daanshan gullies. Results indicated that the peak discharges corresponded to various return periods in different gullies: 200 years in Daanshan, 100 years in Huangnidi, and 50 years in Guanmenzi. However, the triggering precipitation in these three gullies was only of a 20-year return period. The debris flows had undergone significant changes. Analysis indicated that the changes should be ascribed to the flow characteristics, initiation conditions, and the channel blockage impacted by the rapid accumulation of loose material. Channel blockage was the principal factor increasing the scale of the debris flow. The values on the blocking coefficient were presented based on density, height, and other characteristics of dams. Finally, all of the peak debris flow discharges of the Subao River Valley for a 20-year return period were calculated using the recommended blocking coefficient values.
KeywordWenchuan Earthquake Debris Flow Peak Discharge Blocking Coefficient Subao River
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s12665-011-0949-4
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Geology ; Water Resources
Indexed BySCI
Language英语
Quartile4区
TOP
WOS SubjectEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS IDWOS:000299840100005
Funding OrganizationMajor State Basic Research Development Program(2008CB425803) ; CAS(KZCX2-YW-Q03-5) ; Southwest University of Science and Technology(10zx7129)
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9926
Collection山地灾害与地表过程重点实验室
Affiliation1.SW Univ Sci & Technol, Sch Environm & Resource, Mianyang 621010, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Surface Proc & Hazards, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xingzhang,Cui, Peng,You, Yong,et al. Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China[J]. ENVIRONMENTAL EARTH SCIENCES,2012,65(4):995-1003.
APA Chen, Xingzhang,Cui, Peng,You, Yong,&Liu, Jinfeng.(2012).Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China.ENVIRONMENTAL EARTH SCIENCES,65(4),995-1003.
MLA Chen, Xingzhang,et al."Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China".ENVIRONMENTAL EARTH SCIENCES 65.4(2012):995-1003.
Files in This Item:
File Name/Size DocType Version Access License
Post-earthquake chan(666KB)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
[Chen, Xingzhang]'s Articles
[Cui, Peng]'s Articles
[You, Yong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Xingzhang]'s Articles
[Cui, Peng]'s Articles
[You, Yong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Xingzhang]'s Articles
[Cui, Peng]'s Articles
[You, Yong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Post-earthquake changes and prediction of debris flow scales in Subao River Valley, Beichuan County, Sichuan Province, China.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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