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Dynamic hazard assessment of group-occurring debris flows based on a coupled model

文献类型：期刊论文

作者Nie, Yinping1,2,4; Li, Xiuzhen1,2,3; Zhou, Wendy3; Xu, Ruichi1,2
刊名NATURAL HAZARDS
出版日期2021-02-26
页码27
ISSN号0921-030X
关键词Group-occurring debris flows Dynamic hazard assessment Coupled model TRIGRS model Flow-R model
DOI10.1007/s11069-021-04558-3
通讯作者Li, Xiuzhen(lxzljt@imde.ac.cn)
英文摘要A scientific hazard zoning of debris flows can ensure that human activities are not performed therein, thereby reducing economic loss as much as possible. In this study, by considering the formation background conditions of mountain hazards and dynamic rainfall conditions, the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability Model (TRIGRS) and Flow path assessment of gravitational hazards at a Regional scale (Flow-R) are organically combined to establish a new coupled model for debris flow dynamic hazard assessment from the viewpoint of landslides providing the material source of debris flows. The coupled model was employed in Qingping township, Sichuan province of China, which was severely damaged by the "5 center dot 12" Wenchuan earthquake in 2008. Evaluation results show that the accuracy of the coupled model is 87.98%, which is significantly higher than that of the static Flow-R model (75.51%). This study not only considers the effect of the formation condition of mountain hazards and rainfall-induced shallow landslides on the source of debris flows, but also realises real-time hazard assessment and prediction of group-occurring debris flows. The coupled model used in this study provides a new perspective and is paramount for improving the accuracy and reliability of debris flow hazard assessment.
资助项目National Natural Science Foundation of China[41772386] ; National Natural Science Foundation of China[41877291] ; Strategic Leading Science and Technology Project of Chinese Academy of Sciences[XDA23090203] ; National Key Research and Development Plan of China[YS2018YFGH000001]
WOS研究方向Geology ; Meteorology & Atmospheric Sciences ; Water Resources
语种英语
出版者SPRINGER
WOS记录号WOS:000622221000002
资助机构National Natural Science Foundation of China ; Strategic Leading Science and Technology Project of Chinese Academy of Sciences ; National Key Research and Development Plan of China
源URL[http://ir.imde.ac.cn/handle/131551/56026]  
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Li, Xiuzhen
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Sichuan, Peoples R China
3.Colorado Sch Mines, Dept Geol & Geol Engn, Golden, CO 80401 USA
4.Ctr Longgang Town Kaiyang Cty, Village & Town Construct Serv, Guiyang 550000, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Nie, Yinping,Li, Xiuzhen,Zhou, Wendy,et al. Dynamic hazard assessment of group-occurring debris flows based on a coupled model[J]. NATURAL HAZARDS,2021:27.
APA Nie, Yinping,Li, Xiuzhen,Zhou, Wendy,&Xu, Ruichi.(2021).Dynamic hazard assessment of group-occurring debris flows based on a coupled model.NATURAL HAZARDS,27.
MLA Nie, Yinping,et al."Dynamic hazard assessment of group-occurring debris flows based on a coupled model".NATURAL HAZARDS (2021):27.

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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