IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.1
Geomorphologic analysis and physico-dynamic characteristics of Zhatai-Gully debris flows in SW China
LIU Xi-lin; TANG Chuan; NI Hua-yong; ZHAO Yuan
Corresponding AuthorLIU Xi-lin
2016-01
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume13Issue:1Pages:137-145
Subtype期刊论文
AbstractZhatai gully is a typical debris flow channel in Butuo county of Sichuan province, southwestern China. The geomorphologic features are analyzed and the physical-dynamic characteristics are discussed on the basis of field investigation and laboratory tests. Geomorphologic analysis indicates that Zhatai-gully drainage in relation to debris flow can be divided into source area, transport area, and deposition area. The source area has a steep slope and has very limited vegetation cover, which favors runoff, allowing loose solid materials to be mobilized easily and rapidly. In the transport area, there are many small landslides, lateral lobes, and loose materials distributed on both banks. These landslides are active and constantly providing abundant source of soils for the debris flows. In the deposition area, three old debris-flow deposits of different ages can be observed. The dynamic calculation shows that within the recurrence intervals of50 and 100 years, debris flow discharges are 155.77m3/s and 178.19m3/s and deposition volumes are 16.39 × 104 m3 and 18.14 × 104 m3, respectively. The depositional fan of an old debris flow in the outlet of the gully can be subdivided into six layers. There are three debris flow deposits on left and two on the right side of the gully. Grain-size tests of sediments from the soil, gulley bed deposits, and the fresh and old debris flow deposits showed that high amounts of clay and fine gravel were derived from the soil in the source area whereas much of the gravel fraction were sourced from the gullybed deposits. Comprehensive analysis indicates that Zhatai gully is viscous debris-flow gully with moderateto high frequency and moderate to large magnitude debris flows. The risk of a debris flow disaster in Zhatai-gully is moderate and poses a potential threat to the planned hydroelectric dam. Appropriate engineering measures are suggested in the construction and protection of the planned hydroelectric station.
KeywordDebris Flows Geomorphologic Feature Zhatai Gully China
DOI10.1007/s11629-014-3267-y
Indexed BySCI
Language英语
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/13882
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.1
Recommended Citation
GB/T 7714
LIU Xi-lin,TANG Chuan,NI Hua-yong,et al. Geomorphologic analysis and physico-dynamic characteristics of Zhatai-Gully debris flows in SW China[J]. Journal of Mountain Science,2016,13(1):137-145.
APA LIU Xi-lin,TANG Chuan,NI Hua-yong,&ZHAO Yuan.(2016).Geomorphologic analysis and physico-dynamic characteristics of Zhatai-Gully debris flows in SW China.Journal of Mountain Science,13(1),137-145.
MLA LIU Xi-lin,et al."Geomorphologic analysis and physico-dynamic characteristics of Zhatai-Gully debris flows in SW China".Journal of Mountain Science 13.1(2016):137-145.
Files in This Item:
File Name/Size DocType Version Access License
12.pdf(2073KB)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
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[LIU Xi-lin]'s Articles
[TANG Chuan]'s Articles
[NI Hua-yong]'s Articles
Baidu academic
Similar articles in Baidu academic
[LIU Xi-lin]'s Articles
[TANG Chuan]'s Articles
[NI Hua-yong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[LIU Xi-lin]'s Articles
[TANG Chuan]'s Articles
[NI Hua-yong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 12.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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