| 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
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| 2018 | |
| Source Publication | Geomatics Natural Hazards and Risk
 |
| ISSN | 1947-5705 |
| EISSN | 1947-5713 |
| Volume | 9Issue:1Pages:1230-1248 |
| Subtype | Article |
| Contribution Rank | 1 |
| Abstract | Debris 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. © 2018 The Author(s). |
| DOI | 10.1080/19475705.2018.1508507 |
| Indexed By | EI |
| Language | 英语 |
| EI Accession Number | Accession number:20191306714384 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imde.ac.cn/handle/131551/25584 |
| Collection | 山地灾害与地表过程重点实验室 |
| Corresponding Author | Wang Tao |
| Affiliation | 1.Key Laboratory of Mountain Hazards and Earth Surface Processes Institute of Mountain Hazards and Environment Chinese Academy of Sciences Chengdu China; 2.University of Chinese Academy of Sciences Beijing China |
| 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 and 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 and 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 and Risk 9.1(2018):1230-1248. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Debris flow amplific（2089KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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