Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects

doi:10.1007/s10064-017-1129-x

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

	Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects
	Liang, Heng 1,2; He, Siming1,3,4 ; Lei, Xiaoqin1,3 ; Bi, Yuzhang 5; Liu, Wei1,2 ; Ouyang, Chaojun1,3
刊名	BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
	2019-03-01
卷号	78 期号:2 页码:763-777
关键词	CSW landfill landslide Dilatancy effects Dynamic processes SPH
ISSN号	1435-9529
DOI	10.1007/s10064-017-1129-x
通讯作者	He, Siming(726483842@qq.com)
英文摘要	Construction solid waste (CSW) landfill landslides, such as the Guangming New District landslide, which occurred in Shenzhen (hereafter the Shenzhen landslide), occur when the material is loose and saturated. They usually exhibit characteristics such as abrupt failure and whole collapse. During the propagation of landslides, dilatation behavior plays an important role in causing liquefaction, resulting in high velocity and exceptionally long run-out dynamics. We propose a dynamic model for describing fluidized CSW landslides by integrating the dilatancy model into smoothed particle hydrodynamics (SPH). The dilatancy model implies that the occurrence of dilation or the contraction of the granular-fluid mixture depends on the initial solid volume fraction. The dynamic model is used to simulate the Shenzhen landslide, and special attention is paid to the effects of different initial solid volumes on the mobility of the CSW landslide. The results show that when the solid volume fraction is higher than the critical value, contraction occurs, the excess pore water pressure increases, and the basal friction resistance is reduced. CSW landslide mobility is based on the initial solid volume fraction (or initial void ratio) of the granular-fluid mixture; a slight change in the initial volume fraction significantly affects the mobility of the CSW landfill landslide.
资助项目	NSFC-ICIMOD[41661144041] ; Science and Technology Department of Sichuan Province of China[2016SZ0067]
WOS关键词	DEPTH-INTEGRATED MODEL ; FLOW ; LIQUEFACTION ; SENSITIVITY ; MOBILITY ; MOTION
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000460046500006
资助机构	NSFC-ICIMOD ; Science and Technology Department of Sichuan Province of China
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/25311]
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, Chengdu, Sichuan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Key Lab Mt Hazards & Surface Proc, Chengdu, Sichuan, Peoples R China 4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Chengdu, Sichuan, Peoples R China 5.Southeast Univ, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Liang, Heng,He, Siming,Lei, Xiaoqin,et al. Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2019,78(2):763-777.
APA	Liang, Heng,He, Siming,Lei, Xiaoqin,Bi, Yuzhang,Liu, Wei,&Ouyang, Chaojun.(2019).Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,78(2),763-777.
MLA	Liang, Heng,et al."Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 78.2(2019):763-777.