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  4. 山地灾害与地表过程重点实验室
Dynamic hazard assessment of debris flow based on TRIGRS and flow-R coupled models

文献类型：期刊论文

作者Nie, Yinping2,3; Li, Xiuzhen3; Xu, Ruichi1,3
刊名STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
出版日期2021-09-23
页码18
关键词Landslide Debris flow Dynamic hazard assessment Coupled model TRIGRS Flow-R
ISSN号1436-3240
DOI10.1007/s00477-021-02093-y
英文摘要Evaluating the hazards of debris flows is necessary for risk assessment. The May 12, 2008 earthquake in Wenchuan County, China caused many landslides and loose slopes. Under continuous or heavy rainfall, the landslides and loose slopes are easily destabilized and provide huge amounts of material source for debris flows, significantly increasing the hazard level of associated disasters. Moreover, the hazard of debris flows is not always constant, but variable over time because of the changes in influencing factors (e.g., geomorphology, rainfall conditions, and earthquakes). This study proposes a coupled model based on the TRIGRS (Transient Rainfall Infiltration and Grid based Regional Slope-stability Model) and Flow-R (Flow path assessment of gravitational hazards at a Regional scale) models for a dynamic hazard assessment of debris flows applied in a small watershed, Bayi Gully. This coupled model considers the impact of the actual rainfall process, potential debris sources on slope surfaces, and existing loose sources in the debris flow channel. The results indicate that (1) the hazard assessment by the coupled model is superior to that by the static Flow-R model; (2) the spatial distribution of landslides, debris flow sources, debris flow hazard areas, hazard probability, and debris flow energy vary with rainfall duration; and (3) the debris flow hazard area is strongly affected by topographic and geomorphic factors. Thus, the coupled model provides a powerful and robust tool for the hazard assessment and disaster prevention and mitigation of debris flows.
WOS关键词VALTELLINA DI TIRANO ; SHALLOW LANDSLIDES ; MEDIUM-SCALE ; RAINFALL ; SUSCEPTIBILITY ; SIMULATION ; RISK ; ENTRAINMENT
资助项目National Natural Science Foundation of China[41772386] ; National Key Research and Development Plan of China[YS2018YFGH000001] ; Strategic Leading Science and Technology Project of Chinese Academy of Sciences (Class A)[XDA23090203] ; South China Branch Project of China Petroleum Pipeline Network Group Co., Ltd[GWHT20210014429]
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Mathematics ; Water Resources
语种英语
WOS记录号WOS:000698564900001
出版者SPRINGER
资助机构National Natural Science Foundation of China ; National Key Research and Development Plan of China ; Strategic Leading Science and Technology Project of Chinese Academy of Sciences (Class A) ; South China Branch Project of China Petroleum Pipeline Network Group Co., Ltd
源URL[http://ir.imde.ac.cn/handle/131551/56240]  
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.Sinopec Sales Co Ltd, Wuhan Petr Branch, Wuhan 430000, Hubei, Peoples R China
2.Village & Town Construct Serv Ctr Longgang Town, Guiyang 550300, Guizhou, Peoples R China
3.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
推荐引用方式
GB/T 7714		 Nie, Yinping,Li, Xiuzhen,Xu, Ruichi. Dynamic hazard assessment of debris flow based on TRIGRS and flow-R coupled models[J]. STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,2021:18.
APA Nie, Yinping,Li, Xiuzhen,&Xu, Ruichi.(2021).Dynamic hazard assessment of debris flow based on TRIGRS and flow-R coupled models.STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT,18.
MLA Nie, Yinping,et al."Dynamic hazard assessment of debris flow based on TRIGRS and flow-R coupled models".STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT (2021):18.

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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