Stability Analysis of Non-Viscous Granular Media Seepage Failure Based on Particle Method

This paper reviews the development and discusses the fundamental theory of particle method. According to different Cu value’s grain size curves, three numerical models have been settled by using implicit solver embedded software-PFC which is based on DEM for fluid-structure interaction calculation....

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Published inApplied Mechanics and Materials Vol. 29-32; pp. 1499 - 1505
Main Authors Wang, Qiu Jie, Zhang, Ze Hui, Zeng, Zeng, Dang, Fa Ning
Format Journal Article
LanguageEnglish
Published Zurich Trans Tech Publications Ltd 01.08.2010
Subjects
Seepage Failure
Grain Size Curve
Coupling
Granular
Force Chain
DEM
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Summary:This paper reviews the development and discusses the fundamental theory of particle method. According to different Cu value’s grain size curves, three numerical models have been settled by using implicit solver embedded software-PFC which is based on DEM for fluid-structure interaction calculation. In order to get the criteria of seepage failure in granule system, the real-time force chain and flow vector under different hydraulic gradient have been recorded. Process shows that particles move when hydraulic gradient rises but the granule system’s failure would not happen unless an enough high hydraulic gradient value is reached. The result points out that difference between unstable granule system under seepage and the stable granule system under seepage, whose force-chain and flow vector is stable and process convergence can also be got after several time-steps calculation is made, can be the proof whether the granule system fails or not.
Bibliography:Selected, peer reviewed papers from the 2010 International Conference On Applied Mechanics And Mechanical Engineering (ICAMME 2010), September 8 ~ 9, 2010, Changsha, China
ISBN:9780878492459
0878492453
ISSN:1660-9336
1662-7482
1662-7482
DOI:10.4028/www.scientific.net/AMM.29-32.1499