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  2. 成都山地灾害与环境研究所
  3. 中国科学院水利部成都山地灾害与环境研究所
  4. 山地灾害与地表过程重点实验室
Multi-scale hazard assessment of debris flows in eastern Qinghai-Tibet Plateau area

文献类型：会议论文

作者Zou, Qiang2,3; Cui, Peng2,3; Zhang, Guangze1; Wang, Dong1
出版日期2019
会议日期June 10, 2019 - June 13, 2019
会议地点Golden, CO
关键词Disaster prevention Disasters Dynamics Hazards Highway administration Numerical methods Risk management
DOI10.25676/11124/173128
页码903-910
国家United states
英文摘要Process analysis and hazard assessment are essential for the prevention and mitigation of debris-flow hazards in mountainous areas. Many villages and ongoing infrastructure projects in China are vulnerable to large debris flows during heavy rainfall or glacier lake outbursts. Without emergency management planning, such contingencies can lead to extensive loss of life and egregious property damage. In the eastern Qinghai-Tibet Plateau area, debris-flow disasters are a common phenomenon. In this article, we analyzed the spatial distribution, activity and hazard characteristics of debris flows and established a debris-flow database by using geographic information technology. Moreover, we comprehensively analyzed the dynamic process of debris flow at a local scale, the compound effects of debris flows along riverside section and the disaster environment factors of debris flows overall scale of Sichuan-Tibet highway respectively. Accordingly, we built an applicable factor system and a comprehensive framework to quantitatively evaluate debris-flow hazard degree, and then proposed a multi-scale debris-flow hazard assessment method by analyzing typical large-scale debris-flow hazard, debris flows along riverside highway and debris flows in whole traffic corridor, respectively. Especially, with respect to typical large-scale debris-flow disaster, we proposed a dynamic process-based method to analyzed debris-flow hazard by using numerical simulation of debris flow, flood analysis, RS and GIS technology. In view of debris flows along riverside highway, we analyzed debris flow process and determined the hazard evaluation indexes and proposed a quantitative method of hazard assessment for debris flow along riverside highways. Regarding to debris flows along whole road, we proposed a quantitative method to analyze the hazard of debris flows and classified hazard levels in the debris-flow prone area along highways. Finally, these proposed methods were applied in case studies in a local scale (K3404 of G318), Xiqu river section and Sichuan-Tibet highway respectively. The results showed that the calculated risk zones consist with the actual distribution and severity of damage of the debris-flow events, which can provide scientific reference for debris-flow risk management and disaster prevention and mitigation of arterial traffic lines. © 2019 Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation. All rights reserved.
源文献作者Access Limited Construction ; Association of Environmental and Engineering Geologists ; BGC Engineering Inc. ; et al. ; Geobrugg North America ; KANE Geotech Inc.
产权排序1
会议录Debris-Flow Hazards Mitigation: Mechanics, Monitoring, Modeling, and Assessment - Proceedings of the 7th International Conference on Debris-Flow Hazards Mitigation
语种英语
URL标识查看原文
ISBN号9780578510828
源URL[http://ir.imde.ac.cn/handle/131551/33785]  
专题成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者Zou, Qiang
作者单位1.China Railway Eryuan Engineering Group CO. LTD, Chengdu, China
2.Center for Excellence in Tibetan Plateau Earth Sciences(CETES), Chinese Academy of Sciences(CAS), Beijing, China;
3.Key Laboratory of Mountain Hazards and Earth Surface Process, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences(CAS), 4, Renminnanlu Road, Chengdu; 610041, China;
推荐引用方式
GB/T 7714		 Zou, Qiang,Cui, Peng,Zhang, Guangze,et al. Multi-scale hazard assessment of debris flows in eastern Qinghai-Tibet Plateau area[C]. 见:. Golden, CO. June 10, 2019 - June 13, 2019.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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