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Debris flow amplification in a moraine terrace and related engineering measures in the Zongzhai Valley, Southeastern Tibetan Plateau
Deng, Mingfeng1,2; Liu, Mei1,2; Zhang, Yong1,2; Chen, Ningsheng1; Huang, Na1; Wang, Tao1
Corresponding AuthorWang, Tao(wtwang@imde.ac.cn)
2018
Source PublicationGEOMATICS NATURAL HAZARDS & RISK
ISSN1947-5705
Volume9Issue:1Pages:1230-1248
AbstractDebris flows can quickly destroy basic facilities in mountainous areas, where suitable land resources are limited and towns are located on gentle slopes. To alleviate the threat of debris flows, two main approaches, based on debris storage or debris-flow excretion, have been proposed in recent decades in China. In August 2015, a debris flow occurred in the Zongzhai Valley for the first time in the last 100 years. Field surveys, section measurements and discharge calculations indicated that the bulking of the debris flow and the sediment entrainment were serious, resulting in the widening and deepening of the channel along the moraine terrace. Therefore, the two traditional mitigation methods appear to be inappropriate for the debris flows in Zongzhai Valley because this region lacks sufficient space for debris storage and economic support for a long drainage canal. This study analyzed the supply mechanism of the bed material and bank sediments along the moraine terrace and found that the bank collapse was mainly controlled by bed scour. Based on a literature review, we determined that the channel bed strength in the terrace should be increased and proposed that shallow dams be constructed to maintain the stability of the channel bed. The parameters of these shallow dams are provided in this article.
KeywordMoraine terrace debris flows amplification engineering measures southeastern Tibetan Plateau
DOI10.1080/19475705.2018.1508507
Indexed BySCI
WOS KeywordWENCHUAN EARTHQUAKE ; ENTRAINMENT ; SCOUR ; MITIGATION ; EROSION ; IMPACT ; DEPOSITION ; INITIATION ; MECHANISM ; TORRENT
Language英语
Funding ProjectNational Natural Science Foundation of China[41661134012] ; National Natural Science Foundation of China[41402283] ; National Natural Science Foundation of China[41671112] ; 135 Strategic Program of the IMHE, CAS[SDS-135-1705]
WOS Research AreaGeology ; Meteorology & Atmospheric Sciences ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences ; Water Resources
WOS IDWOS:000485169300001
Funding OrganizationNational Natural Science Foundation of China ; 135 Strategic Program of the IMHE, CAS
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/27161
Collection山地灾害与地表过程重点实验室
Corresponding AuthorWang, Tao
Affiliation1.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing, 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
Deng, Mingfeng,Liu, Mei,Zhang, Yong,et al. Debris flow amplification in a moraine terrace and related engineering measures in the Zongzhai Valley, Southeastern Tibetan Plateau[J]. GEOMATICS NATURAL HAZARDS & RISK,2018,9(1):1230-1248.
APA Deng, Mingfeng,Liu, Mei,Zhang, Yong,Chen, Ningsheng,Huang, Na,&Wang, Tao.(2018).Debris flow amplification in a moraine terrace and related engineering measures in the Zongzhai Valley, Southeastern Tibetan Plateau.GEOMATICS NATURAL HAZARDS & RISK,9(1),1230-1248.
MLA Deng, Mingfeng,et al."Debris flow amplification in a moraine terrace and related engineering measures in the Zongzhai Valley, Southeastern Tibetan Plateau".GEOMATICS NATURAL HAZARDS & RISK 9.1(2018):1230-1248.
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