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An example of a hazard and risk assessment for debris flows-A case study of Niwan Gully, Wudu, China

文献类型：期刊论文

作者Ourang Chaojun1,2,4; Wang Zhongwen2; An Huicong1,4; Liu Xingrong3; Wang Dongpo2
刊名ENGINEERING GEOLOGY
出版日期2019
卷号263页码:105351
关键词Niwan gully Debris flow Numerical modeling Hazard assessment Risk assessment
ISSN号0013-7952
DOI10.1016/j.enggeo.2019.105351
产权排序2
通讯作者Wang, Dongpo(wangdongpo2014@cdut.edu.cn)
文献子类Article
英文摘要The highly geologically active, structurally complex Bailongjiang river basin, Longnan City, Gansu Province hosts many debris-flow gullies. The recent Wenchuan and Jiuzhaigou earthquakes have increased the amount of source material available in these debris flow gullies, and the disturbed nature of the slopes makes them prone to failure under high rainfall, increasing the risk of large-scale debris flows. Moreover, poor urban planning in the region may multiply the human and economic losses caused by debris flows. Therefore, it is necessary to determine the potential hazard zones associated with such debris flows and to implement debris flow hazard and risk assessment. In this paper, Niwan gully is chosen as the study object, as it is characterized by repeated debris flow outbreaks and an ill-considered urban planning at the outlet of the gully. A depth-integrated continuum method is adopted to determine the potential hazard zones of debris flows with different recurrence intervals. The debris flow inundation and evolutionary trajectory are shown to be reasonably comparable with historical debris flows. A two-factor model that couples maximum flow depth with momentum is used to better classify the hazard zones. This study also provides a complete and efficient means to determine the values of debris flow parameters and to implement a hazard and risk assessment based on the solid material reserve method and a probabilistic method. This proposed approach efficiently generated a debris flow risk distribution map that can be used for effective disaster prevention in the Bailongjiang River basin.
电子版国际标准刊号1872-6917
WOS关键词RUNOUT CHARACTERISTICS ; SICHUAN PROVINCE ; LONGCHI AREA ; RAINFALL ; MODEL ; EARTHQUAKE ; SIMULATION ; PREDICTION ; LANDSLIDE ; CITY
资助项目NSFC[41572303] ; NSFC[41520104002] ; CAS Key Research Program of Frontier Sciences[QYZDY-SSW-DQC006] ; Joint Project of GAS and CAS[2017HZ03] ; CAS Youth Innovation Promotion Association ; Key Laboratory of Mountain Hazards and Surface Process
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:000501407600011
出版者ELSEVIER
资助机构NSFC ; CAS Key Research Program of Frontier Sciences ; Joint Project of GAS and CAS ; CAS Youth Innovation Promotion Association ; Key Laboratory of Mountain Hazards and Surface Process
源URL[http://ir.imde.ac.cn/handle/131551/33559]  
专题中国科学院水利部成都山地灾害与环境研究所
通讯作者Wang Dongpo
作者单位1.Key Laboratory of Mountain Hazards and Surface Process & Institute of Mountain Hazards and Environment (IMHE), Chinese Academy of Sciences, Chengdu 610041, China;
2.State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China;
3.Geological Hazards Prevention Institute, Gansu Academy of Sciences, Lanzhou 73000, China
4.University of Chinese Academy of Sciences, Beijing 100049, China;
推荐引用方式
GB/T 7714		 Ourang Chaojun,Wang Zhongwen,An Huicong,et al. An example of a hazard and risk assessment for debris flows-A case study of Niwan Gully, Wudu, China[J]. ENGINEERING GEOLOGY,2019,263:105351.
APA Ourang Chaojun,Wang Zhongwen,An Huicong,Liu Xingrong,&Wang Dongpo.(2019).An example of a hazard and risk assessment for debris flows-A case study of Niwan Gully, Wudu, China.ENGINEERING GEOLOGY,263,105351.
MLA Ourang Chaojun,et al."An example of a hazard and risk assessment for debris flows-A case study of Niwan Gully, Wudu, China".ENGINEERING GEOLOGY 263(2019):105351.

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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