Numerical study of the dynamic compaction of gravel soil ground using the discrete element method

Based on the rapid impact compaction technique, the dynamic compaction process of gravel soil ground was simulated using the particle flow discrete element code PFC2D/PFC3D. The improvement effect and the influence depth of the dynamic compaction of the gravel soil foundation were analyzed based on...

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Bibliographic Details
Published inGranular matter Vol. 16; no. 6; pp. 881 - 889
Main Authors Ma, Zong-Yuan, Dang, Fa-Ning, Liao, Hong-Jian
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2014
Springer Nature B.V
Subjects
Complex Fluids and Microfluidics
Discrete element method
Dynamic tests
Dynamics
Engineering Fluid Dynamics
Engineering Thermodynamics
Foundations
Geoengineering
Granular materials
Gravel
Grounds
Heat and Mass Transfer
Hydraulics
Industrial Chemistry/Chemical Engineering
Materials Science
Mathematical models
Mechanical properties
Numerical analysis
Original Paper
Physics
Physics and Astronomy
Soft and Granular Matter
Soil (material)
Gravel soil foundation
Dynamic compaction
Particle flow discrete element
Porosity
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Summary:Based on the rapid impact compaction technique, the dynamic compaction process of gravel soil ground was simulated using the particle flow discrete element code PFC2D/PFC3D. The improvement effect and the influence depth of the dynamic compaction of the gravel soil foundation were analyzed based on the porosity variation of the foundation soil during the dynamic compaction process. The influences of the dynamic hysteretic effect, the values of the parameters for the contact model and the shape of the hammer on the computation results of the numerical analyses were analyzed. The feasibility of the numerical simulation for the dynamic compaction process of the gravel soil foundation was discussed. The computation results obtained by the particle flow discrete element method shows that the porosity variation induced by the particle spin must be considered in the numerical analysis of the dynamic compaction of gravel soil ground. The particle flow discrete element method is effective and reasonable in the numerical analysis of the dynamic compaction of gravel soil ground.
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ISSN:1434-5021
1434-7636
DOI:10.1007/s10035-014-0529-x