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Dynamic process simulation of construction solid waste (CSW) landfill landslide based on SPH considering dilatancy effects
Liang, Heng1,2; He, Siming1,3,4; Lei, Xiaoqin1,3; Bi, Yuzhang5; Liu, Wei1,2; Ouyang, Chaojun1,3
Corresponding AuthorHe, Siming(726483842@qq.com)
2019-03-01
Source PublicationBULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
ISSN1435-9529
Volume78Issue:2Pages:763-777
AbstractConstruction 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.
KeywordCSW landfill landslide Dilatancy effects Dynamic processes SPH
DOI10.1007/s10064-017-1129-x
Indexed BySCI
WOS KeywordDEPTH-INTEGRATED MODEL ; FLOW ; LIQUEFACTION ; SENSITIVITY ; MOBILITY ; MOTION
Language英语
Funding ProjectNSFC-ICIMOD[41661144041] ; Science and Technology Department of Sichuan Province of China[2016SZ0067]
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Environmental ; Engineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000460046500006
Funding OrganizationNSFC-ICIMOD ; Science and Technology Department of Sichuan Province of China
PublisherSPRINGER HEIDELBERG
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25311
Collection山地灾害与地表过程重点实验室
Corresponding AuthorHe, Siming
Affiliation1.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
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
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.
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