IMHE OpenIR  > 山地灾害与地表过程重点实验室
Numerical investigation of rainfall-induced fines migration and its influences on slope stability
Lei, Xiaoqin1,2,3; Yang, Zongji1; He, Siming1,3; Liu, Enlong2; Wong, Henry4; Li, Xinpo1
2017
Source PublicationACTA GEOTECHNICA
ISSN1861-1125
EISSN1861-1133
Volume12Issue:6Pages:1431-1446
SubtypeArticle
AbstractRainfall-infiltration-induced fines migration within soil slopes may alter the local porosity and hydraulic properties of soils, and is known to be a possible cause of the failure of slopes. To investigate the intrinsic mechanisms, a mathematical formulation capable of capturing the main features of the coupled unsaturated seepage and fines migration process has been presented. Within the formulation, an unsaturated erodible soil is treated as a three-phase multi-species porous medium based on mixture theory; mass conservation equations with mass exchange terms together with the rate equations controlling fines erosion and deposition processes are formulated as the governing equations and are solved by the FEM method. The influences of both the fines detachment and deposition on the stability of slopes under rainfall infiltration have been investigated numerically. The results show that depending on whether the fines move out or get captured at pore constrictions, both desired and undesired consequences may arise out of the fines migration phenomenon. It is suggested that more attention should be paid to those slopes susceptible to internal erosion whose safety analysis cannot be predicted by traditional methods.
KeywordClogging Fines migration Rainfall infiltration Slope stability Suffusion Unsaturated soil
DOI10.1007/s11440-017-0600-y
Indexed BySCI
WOS KeywordCOHESIONLESS SOIL ; LANDSLIDE DEPOSITS ; POROUS-MEDIA ; EROSION ; INFILTRATION ; INSTABILITY ; FRAMEWORK
Language英语
Quartile2区
Funding ProjectNSFC[41702331] ; NSFC[41771021] ; NSFC[41472293] ; Hundred Young Talents Program of IMHE[SDSQB-2016-01] ; NSFC-ICIMOD[41661144041] ; ''Light of the West'' of CAS[Y7R2070070] ; Youth fund of IMHE[Y7K2050050] ; Key Research & Development Program ; Scientific Support Program of the Science & Technology Department of Sichuan Province[2017SZ0041] ; Scientific Support Program of the Science & Technology Department of Sichuan Province[2016SZ0067]
TOP
WOS Research AreaEngineering
WOS SubjectEngineering, Geological
WOS IDWOS:000416212800016
Funding OrganizationNSFC ; Hundred Young Talents Program of IMHE ; NSFC-ICIMOD ; ''Light of the West'' of CAS ; Youth fund of IMHE ; Key Research & Development Program ; Scientific Support Program of the Science & Technology Department of Sichuan Province
PublisherSPRINGER HEIDELBERG
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19181
Collection山地灾害与地表过程重点实验室
Corresponding AuthorYang, Zongji; He, Siming
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Surface Proc, Chengdu 610041, Sichuan, Peoples R China
2.Sichuan Univ, Coll Water Resource & Hydropower, Chengdu 610041, Sichuan, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Univ Lyon, Lab Genie Civil & Batiment, Ecole Natl Travaux Publ Etat, F-69120 Vaulx En Velin, France
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
Lei, Xiaoqin,Yang, Zongji,He, Siming,et al. Numerical investigation of rainfall-induced fines migration and its influences on slope stability[J]. ACTA GEOTECHNICA,2017,12(6):1431-1446.
APA Lei, Xiaoqin,Yang, Zongji,He, Siming,Liu, Enlong,Wong, Henry,&Li, Xinpo.(2017).Numerical investigation of rainfall-induced fines migration and its influences on slope stability.ACTA GEOTECHNICA,12(6),1431-1446.
MLA Lei, Xiaoqin,et al."Numerical investigation of rainfall-induced fines migration and its influences on slope stability".ACTA GEOTECHNICA 12.6(2017):1431-1446.
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