IMHE OpenIR  > 山地灾害与地表过程重点实验室
Initiation and displacement analysis of cohesive soil slopes by discrete element modelling
Li XP(李新坡)1,2; Wu Y(吴永)1,2; Su LJ(苏立君)1,2,3
Corresponding Author李新坡
2017
Source PublicationGeotechnical and Geological Engineering
ISSN0960-3182 (Print) ; 1573-1529 (Online)
Volume35Issue:2Pages:693-705
Abstract

Kinematic and static analysis of geotechnical problems using the DEM has been widely accepted in the research arena for many years; however, its routine use in geotechnical practice for slope stability analysis still remains limited. This study focuses on the behavior of cohesive soil slopes undergoing failure initiation and succedent run-out. The numerical simulations of a supposititious slope composed of homogeneous cohesive soil were conducted using the DEM. The cohesive soil was simulated using contact-bonded graded aggregates of diameters ranging from 80 to 160 mm. This study investigated the microcrack-growth, particle displacements, particle movement and porosity changes within the slope fill. The simulation results showed that the failure mechanism is a rotational one at the failure initiation stage and gradually transfer to a slide/flow mode as progressive failure occurs. The porosity of deposit mass increased remarkably as result of dilation and block void. The run-out behavior of failure mass is not very sensitive with the viscous damping constant.

 

 

KeywordDiscrete Element Simulation Slope Stability Initiation Of Slope Failure Run-out
DOI0.1007/s10706-016-0134-3
Indexed ByEI
Language英语
Accession numberAccession number:20165003122537
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/18815
Collection山地灾害与地表过程重点实验室
Affiliation1.Key Laboratory of Mountain Hazards and Earth Surface Processes, CAS, Chengdu; 610041, China
2.Institute of Mountain Hazards and Environment, CAS, Chengdu; 610041, China
3.CAS Center for Excellence in Tibetan Plateau Earth Sciences, Chengdu, China
First 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
Li XP,Wu Y,Su LJ. Initiation and displacement analysis of cohesive soil slopes by discrete element modelling[J]. Geotechnical and Geological Engineering,2017,35(2):693-705.
APA Li XP,Wu Y,&Su LJ.(2017).Initiation and displacement analysis of cohesive soil slopes by discrete element modelling.Geotechnical and Geological Engineering,35(2),693-705.
MLA Li XP,et al."Initiation and displacement analysis of cohesive soil slopes by discrete element modelling".Geotechnical and Geological Engineering 35.2(2017):693-705.
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