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Article: Numerical investigation of the at-rest earth pressure coefficient of granular materials
Title | Numerical investigation of the at-rest earth pressure coefficient of granular materials |
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Authors | |
Keywords | Discrete element method Angularity At rest earth pressure Clumped particle Surface roughness |
Issue Date | 2015 |
Citation | Granular Matter, 2015, v. 17, n. 4, p. 413-418 How to Cite? |
Abstract | © 2015, Springer-Verlag Berlin Heidelberg. The at-rest earth pressure coefficient, $$\hbox {K}_{0}$$K0, is one of the most fundamental values for evaluating in-situ soil stresses and designing foundation. Research has been expanded to investigate the correlation between $$\hbox {K}_{0}$$K0 and micro-scale characteristic of granular soils, beyond the macroscopic approach empirically correlated with internal friction angle. This study presents the evolution of $$\hbox {K}_{0}$$K0 values of irregularly shaped natural sand, spherical shaped smooth and rough surfaced glass beads along with the stress history, estimated by the discrete element method. The surface roughness and non-spherical particles were emulated by inter-particle friction coefficient and the clumped particles. Results exhibit that the $$\hbox {K}_{0}$$K0 during loading stage nonlinearly decreases with increasing values of friction coefficient and the assemblies with clumped particles present the lower values of $$\hbox {K}_{0}$$K0 than spherical particle assemblies of the same friction coefficient. The varying friction coefficient seems enough to capture the evolution of $$\hbox {K}_{0}$$K0 during loading, unloading and reloading cycles, while the natural sand inevitably requires the assembly with clumped particles to capture the experimentally observed $$\hbox {K}_{0}$$K0 evolutions. |
Persistent Identifier | http://hdl.handle.net/10722/251116 |
ISSN | 2023 Impact Factor: 2.3 2023 SCImago Journal Rankings: 0.606 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yun, Tae Sup | - |
dc.contributor.author | Lee, Junhwan | - |
dc.contributor.author | Lee, Junghwoon | - |
dc.contributor.author | Choo, Jinhyun | - |
dc.date.accessioned | 2018-02-01T01:54:37Z | - |
dc.date.available | 2018-02-01T01:54:37Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Granular Matter, 2015, v. 17, n. 4, p. 413-418 | - |
dc.identifier.issn | 1434-5021 | - |
dc.identifier.uri | http://hdl.handle.net/10722/251116 | - |
dc.description.abstract | © 2015, Springer-Verlag Berlin Heidelberg. The at-rest earth pressure coefficient, $$\hbox {K}_{0}$$K0, is one of the most fundamental values for evaluating in-situ soil stresses and designing foundation. Research has been expanded to investigate the correlation between $$\hbox {K}_{0}$$K0 and micro-scale characteristic of granular soils, beyond the macroscopic approach empirically correlated with internal friction angle. This study presents the evolution of $$\hbox {K}_{0}$$K0 values of irregularly shaped natural sand, spherical shaped smooth and rough surfaced glass beads along with the stress history, estimated by the discrete element method. The surface roughness and non-spherical particles were emulated by inter-particle friction coefficient and the clumped particles. Results exhibit that the $$\hbox {K}_{0}$$K0 during loading stage nonlinearly decreases with increasing values of friction coefficient and the assemblies with clumped particles present the lower values of $$\hbox {K}_{0}$$K0 than spherical particle assemblies of the same friction coefficient. The varying friction coefficient seems enough to capture the evolution of $$\hbox {K}_{0}$$K0 during loading, unloading and reloading cycles, while the natural sand inevitably requires the assembly with clumped particles to capture the experimentally observed $$\hbox {K}_{0}$$K0 evolutions. | - |
dc.language | eng | - |
dc.relation.ispartof | Granular Matter | - |
dc.subject | Discrete element method | - |
dc.subject | Angularity | - |
dc.subject | At rest earth pressure | - |
dc.subject | Clumped particle | - |
dc.subject | Surface roughness | - |
dc.title | Numerical investigation of the at-rest earth pressure coefficient of granular materials | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s10035-015-0569-x | - |
dc.identifier.scopus | eid_2-s2.0-84938416989 | - |
dc.identifier.volume | 17 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 413 | - |
dc.identifier.epage | 418 | - |
dc.identifier.eissn | 1434-7636 | - |
dc.identifier.isi | WOS:000358737400001 | - |
dc.identifier.issnl | 1434-5021 | - |