Comprehensive modelling of runoff-generated debris flow from formation to propagation in a catchment

doi:10.1007/s10346-020-01383-w

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Comprehensive modelling of runoff-generated debris flow from formation to propagation in a catchment
	Liu Wei 1,2; He Siming 1,2,3
刊名	LANDSLIDES
	2020
卷号	17 期号:7 页码:1529-1544
关键词	Debris flow Formation and propagation processes Integrated model Numerical simulation
ISSN号	1612-510X
DOI	10.1007/s10346-020-01383-w
产权排序	1
文献子类	Article
英文摘要	This study aimed to develop an integrated model of the runoff-generated debris flow that considers the initial conditions, movement mechanisms, and entrainment effect. The study focused on the formation and propagation processes of debris flow within a catchment, and the process is divided into three stages: rainfall infiltration, runoff, and debris flow routing. Soil saturation, rainfall, and entrainment are the main factors that influence the debris flow formation and propagation processes. Existing models for each stage, including Richards's equations, shallow water equations, and two-phase debris flow equations, were coupled. The tridiagonal matrix algorithm and finite volume method were applied to solve these equations. Finally, several experimental cases and the 2010 debris flow event in the Hongchun catchment in China were simulated by using the proposed model. The results showed that the proposed model could effectively describe the behaviours of each stage during the debris flow formation and propagation processes. Although several aspects of the model require further improvement, the physical-parameter-based prediction of runoff-generated debris flows from formation to propagation is effectively performed by the model.
电子版国际标准刊号	1612-5118
资助项目	Original Innovation Program-CAS[ZDBS-LY-DQC039] ; National Natural Science Foundation of China[41907241] ; National Natural Science Foundation of China[41790433] ; NSFCICIMOD[41661144041] ; CAS Light of West China Program
WOS关键词	2008 WENCHUAN EARTHQUAKE ; RICHARDS EQUATION ; 2-FLUID MODEL ; INITIATION ; ENTRAINMENT ; LANDSLIDES ; SIMULATION ; TRANSPORT ; AVALANCHE ; PROVINCE
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000519419200001
资助机构	Original Innovation Program-CAS ; National Natural Science Foundation of China ; NSFCICIMOD ; CAS Light of West China Program
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34127]
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	He Siming
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Liu Wei,He Siming. Comprehensive modelling of runoff-generated debris flow from formation to propagation in a catchment[J]. LANDSLIDES,2020,17(7):1529-1544.
APA	Liu Wei,&He Siming.(2020).Comprehensive modelling of runoff-generated debris flow from formation to propagation in a catchment.LANDSLIDES,17(7),1529-1544.
MLA	Liu Wei,et al."Comprehensive modelling of runoff-generated debris flow from formation to propagation in a catchment".LANDSLIDES 17.7(2020):1529-1544.