Simulation of effects of particle breakage on sliding surface friction for a hypothetical soil continuum moving on an inclined plane

doi:10.1007/s10346-020-01404-8

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

	Simulation of effects of particle breakage on sliding surface friction for a hypothetical soil continuum moving on an inclined plane
	Chen, Zheng 2,3; He, Siming 1,2,3
刊名	LANDSLIDES
	2020-04-25
卷号	17 期号:9 页码:2113-2124
关键词	Landslide Sliding surface weakening Particle breakage Numerical simulation
ISSN号	1612-510X
DOI	10.1007/s10346-020-01404-8
产权排序	1
文献子类	Article; Early Access
英文摘要	Rapid long-runout landslide is a hot topic in the field of landslide researches. Many researchers have proposed different models and hypotheses to explain the superfluidity of long-runout landslides. In this paper, the mechanism of sliding surface weakening caused by particle breakage is studied. Particle breakage can not only cause the excess pore water pressure but also weaken the friction coefficient of the sliding surface. These two factors are both the causes of the superfluidity of the landslide induced by particle breakage. In addition, the evolutions of breakage potential and excess pore water pressure are coupled into landslide dynamic equations to simulate how the particle characteristics such as porosity, crushing hardness, and particle shape influence the landslide fluidity. During sliding process, the numerical results indicate that the breakage potential of sliding surface decreases nonlinearly with time, the excess pore water pressure generated by particle breakage increases first and then decreases nonlinearly, and the effective friction coefficient decreases nonlinearly with time and tends to a residual value.
电子版国际标准刊号	1612-5118
资助项目	National Key Research and Development Program of China[2017YFC1501003] ; National Natural Science Foundation of China[41772312] ; Major Program of the National Natural Science Foundation of China[41790433] ; Key Deployment Project of CAS[KFZD-SW-424] ; China Scholarship Council (CSC) scholarship
WOS关键词	DYNAMIC SIMULATION ; INDUCED LANDSLIDES ; PORE-PRESSURE ; MODEL ; FLOW ; AVALANCHE ; MOVEMENT ; ROCKFILL ; SIZE
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000528408700001
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Major Program of the National Natural Science Foundation of China ; Key Deployment Project of CAS ; China Scholarship Council (CSC) scholarship
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/34589]
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.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Chen, Zheng,He, Siming. Simulation of effects of particle breakage on sliding surface friction for a hypothetical soil continuum moving on an inclined plane[J]. LANDSLIDES,2020,17(9):2113-2124.
APA	Chen, Zheng,&He, Siming.(2020).Simulation of effects of particle breakage on sliding surface friction for a hypothetical soil continuum moving on an inclined plane.LANDSLIDES,17(9),2113-2124.
MLA	Chen, Zheng,et al."Simulation of effects of particle breakage on sliding surface friction for a hypothetical soil continuum moving on an inclined plane".LANDSLIDES 17.9(2020):2113-2124.