Experimental investigation of mobility and deposition characteristics of dry granular flow

doi:10.1007/s10346-020-01593-2

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

	Experimental investigation of mobility and deposition characteristics of dry granular flow
	Yu, Fangwei 1,2,3,4,5; Su, Lijun 1,2,4,5
刊名	LANDSLIDES
	2021
页码	DOI: 10.1007/s10346-020-01593-2
关键词	Deposition Flume tests Granular flow Mobility Sands
ISSN号	1612-510X
DOI	10.1007/s10346-020-01593-2
通讯作者	Su, Lijun(sulijun1976@163.com)
产权排序	1
文献子类	Article;Early Access
英文摘要	This paper presents an experimental investigation of mobility and deposition characteristics of dry granular flow, by a number of flume tests on silica sand no. 3 and silica sand no. 7, to interpret the effects of angle of slope, granular volume, cushion, granular structure, and granular size on the mobility and deposition characteristics of granular flow. Along a given slope, an increase of the amount of sand impaired its mobility. However, for a given amount of sand along a slope, an increase of the angle of slope resulted in a V-shaped change of the angle of mass center movement, implying the existence of a characteristic combination of the angle of slope and the amount of sand to yield the maximum mobility of granular flow. The angle of mass center movement increased while increasing the thickness of cushion, showing that the cushion impaired the mobility of granular flow. Granular structure using the mixed structures of silica sand no. 3 and silica sand no. 7 affected greatly the mobility of granular flow, by showing an inverted structure in the near runout area with the deposition of the materials in the upper half of original grading structure in the far runout area for the inverse grading structure and normal grading structure. The mobility of granular flow increased with the change in turn of the inverse grading structure, the uniform structure, and the normal grading structure. The increase of the grain sizes of granular material enhanced its mobility. In addition, the angle of mass center movement showed a more reliable assessment for the mobility of granular flow in comparison with the angle of maximum mass movement.
电子版国际标准刊号	1612-5118
资助项目	National Natural Science Foundation of China[41807268] ; Strategic Priority Research Program of the Chinese Academy of Sciences -China[XDA20030301] ; Belt & Road International Cooperation Team for the Light of West Program of CAS -China ; Youth Innovation Promotion Association of Chinese Academy of Sciences -China[2018408]
WOS关键词	ROCK AVALANCHES ; DEBRIS ; SEGREGATION ; STURZSTROMS ; RUNOUT ; IMPACT
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000605896200001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences -China ; Belt & Road International Cooperation Team for the Light of West Program of CAS -China ; Youth Innovation Promotion Association of Chinese Academy of Sciences -China
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/55225]
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	Su, Lijun
作者单位	1.CAS HEC, China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.Univ Tokyo, Dept Civil Engn, Tokyo 1138656, Japan 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc CAS, Chengdu 610041, Peoples R China; 5.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
推荐引用方式 GB/T 7714	Yu, Fangwei,Su, Lijun. Experimental investigation of mobility and deposition characteristics of dry granular flow[J]. LANDSLIDES,2021:DOI: 10.1007/s10346-020-01593-2.
APA	Yu, Fangwei,&Su, Lijun.(2021).Experimental investigation of mobility and deposition characteristics of dry granular flow.LANDSLIDES,DOI: 10.1007/s10346-020-01593-2.
MLA	Yu, Fangwei,et al."Experimental investigation of mobility and deposition characteristics of dry granular flow".LANDSLIDES (2021):DOI: 10.1007/s10346-020-01593-2.