Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation
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| 主要作者: | |
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| Publication Date: | 2021 |
| 其他作者: | , |
| 格式: | Article |
| 語言: | eng |
| Source: | Repositório Institucional da UnB |
| Download full: | https://repositorio.unb.br/handle/10482/43370 https://doi.org/10.1016/j.jrmge.2021.03.004 |
總結: | Soft clays are problematic soils as they present high compressibility and low shear strength. There are several methods for improving in situ conditions of soft clays. Based on the geotechnical problem’s geometry and characteristics, the in situ conditions may require reinforcement to restrain instability and construction settlements. Granular columns reinforced by geosynthetic material are widely used to reduce settlements of embankments on soft clays. They also accelerate the consolidation rate by reducing the drainage path’s length and increasing the foundation soil’s bearing capacity. In this study, the performance of encased and layered granular columns in soft clay is investigated and discussed. The numerical results show the significance of geosynthetic stiffness and the column length on the embankment settlements. Furthermore, the results show that granular columns may play an important role in dissipating the excess pore water pressures and accelerating the consolidation settlements of embankments on soft clays. |
| _version_ | 1871442320399794176 |
|---|---|
| author | Alkhorshid, Nima Rostami |
| author2 | Araújo, Gregório Luís Silva Palmeira, Ennio Marques |
| author2_role | author author |
| author_browse | Alkhorshid, Nima Rostami Araújo, Gregório Luís Silva Palmeira, Ennio Marques |
| author_facet | Alkhorshid, Nima Rostami Araújo, Gregório Luís Silva Palmeira, Ennio Marques |
| author_role | author |
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| bitstream.url.fl_str_mv | http://repositorio.unb.br/bitstream/10482/43370/2/license.txt http://repositorio.unb.br/bitstream/10482/43370/1/ARTIGO_ConsolidationSoftClay.pdf |
| collection | Repositório Institucional da UnB |
| dc.contributor.author.fl_str_mv | Alkhorshid, Nima Rostami Araújo, Gregório Luís Silva Palmeira, Ennio Marques |
| dc.date.accessioned.fl_str_mv | 2022-04-11T23:18:14Z |
| dc.date.available.fl_str_mv | 2022-04-11T23:18:14Z |
| dc.date.issued.fl_str_mv | 2021-04-20 |
| dc.identifier.citation.fl_str_mv | ALKHORSHID, Nima R.; ARAÚJO, Gregório L.S. ; PALMEIRA, Ennio M. Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns: numerical evaluation. Journal of Rock Mechanics and Geotechnical Engineering, Wuhan, v. 13, p. 1173-1181, 2021. Disponível em: https://www.sciencedirect.com/science/article/pii/S1674775521000457?via%3Dihub. Acesso em: 11 abr. 2022. |
| dc.identifier.doi.pt_BR.fl_str_mv | https://doi.org/10.1016/j.jrmge.2021.03.004 |
| dc.identifier.uri.fl_str_mv | https://repositorio.unb.br/handle/10482/43370 |
| dc.language.iso.fl_str_mv | eng |
| dc.rights.driver.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UnB instname:Universidade de Brasília (UnB) instacron:UNB |
| dc.subject.keyword.pt_BR.fl_str_mv | Aterros Argila Geossintéticos |
| dc.title.pt_BR.fl_str_mv | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | Soft clays are problematic soils as they present high compressibility and low shear strength. There are several methods for improving in situ conditions of soft clays. Based on the geotechnical problem’s geometry and characteristics, the in situ conditions may require reinforcement to restrain instability and construction settlements. Granular columns reinforced by geosynthetic material are widely used to reduce settlements of embankments on soft clays. They also accelerate the consolidation rate by reducing the drainage path’s length and increasing the foundation soil’s bearing capacity. In this study, the performance of encased and layered granular columns in soft clay is investigated and discussed. The numerical results show the significance of geosynthetic stiffness and the column length on the embankment settlements. Furthermore, the results show that granular columns may play an important role in dissipating the excess pore water pressures and accelerating the consolidation settlements of embankments on soft clays. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | UNB_5699e4bf2f6378e44fec8a1bc13fe5bf |
| identifier_str_mv | ALKHORSHID, Nima R.; ARAÚJO, Gregório L.S. ; PALMEIRA, Ennio M. Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns: numerical evaluation. Journal of Rock Mechanics and Geotechnical Engineering, Wuhan, v. 13, p. 1173-1181, 2021. Disponível em: https://www.sciencedirect.com/science/article/pii/S1674775521000457?via%3Dihub. Acesso em: 11 abr. 2022. |
| instacron_str | UNB |
| institution | UNB |
| instname_str | Universidade de Brasília (UnB) |
| language | eng |
| network_acronym_str | UNB |
| network_name_str | Repositório Institucional da UnB |
| oai_identifier_str | oai:repositorio.unb.br:10482/43370 |
| publishDate | 2021 |
| publishDateSort | 2021 |
| reponame_str | Repositório Institucional da UnB |
| repository.mail.fl_str_mv | repositorio@unb.br |
| repository.name.fl_str_mv | Repositório Institucional da UnB - Universidade de Brasília (UnB) |
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| spelling | Alkhorshid, Nima RostamiAraújo, Gregório Luís SilvaPalmeira, Ennio Marques2022-04-11T23:18:14Z2022-04-11T23:18:14Z2021-04-20ALKHORSHID, Nima R.; ARAÚJO, Gregório L.S. ; PALMEIRA, Ennio M. Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns: numerical evaluation. Journal of Rock Mechanics and Geotechnical Engineering, Wuhan, v. 13, p. 1173-1181, 2021. Disponível em: https://www.sciencedirect.com/science/article/pii/S1674775521000457?via%3Dihub. Acesso em: 11 abr. 2022.https://repositorio.unb.br/handle/10482/43370https://doi.org/10.1016/j.jrmge.2021.03.004Journal of Rock Mechanics and Geotechnical Engineering - This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by/4.0/).info:eu-repo/semantics/openAccessConsolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAterrosArgilaGeossintéticosSoft clays are problematic soils as they present high compressibility and low shear strength. There are several methods for improving in situ conditions of soft clays. Based on the geotechnical problem’s geometry and characteristics, the in situ conditions may require reinforcement to restrain instability and construction settlements. Granular columns reinforced by geosynthetic material are widely used to reduce settlements of embankments on soft clays. They also accelerate the consolidation rate by reducing the drainage path’s length and increasing the foundation soil’s bearing capacity. In this study, the performance of encased and layered granular columns in soft clay is investigated and discussed. The numerical results show the significance of geosynthetic stiffness and the column length on the embankment settlements. Furthermore, the results show that granular columns may play an important role in dissipating the excess pore water pressures and accelerating the consolidation settlements of embankments on soft clays.engreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNBLICENSElicense.txtlicense.txttext/plain163http://repositorio.unb.br/bitstream/10482/43370/2/license.txtba54f8d1c5f5ec8df897ad678916c701MD52open accessORIGINALARTIGO_ConsolidationSoftClay.pdfARTIGO_ConsolidationSoftClay.pdfapplication/pdf2869573http://repositorio.unb.br/bitstream/10482/43370/1/ARTIGO_ConsolidationSoftClay.pdf1582c4a97c6c5b7fe9f82a79572c19f7MD51open access10482/433702024-08-29 13:39:46.771open accessoai:repositorio.unb.br:10482/43370U3VibWlzc8OjbyBlZmV0aXZhZGEgcG9yIGludGVncmFudGUgZGEgZXF1aXBlIGRvIFJlcG9zaXTDs3JpbyBJbnN0aXR1Y2lvbmFsIGRhIFVuQiBkZSBhY29yZG8gY29tIGxpY2Vuw6dhIGNvbmNlZGlkYSBwZWxvIGF1dG9yIGUvb3UgZGV0ZW50b3IgZG9zIGRpcmVpdG9zIGF1dG9yYWlzLg==Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2024-08-29T16:39:46Repositório Institucional da UnB - Universidade de Brasília (UnB) |
| spellingShingle | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation Alkhorshid, Nima Rostami Aterros Argila Geossintéticos |
| status_str | publishedVersion |
| title | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| title_full | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| title_fullStr | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| title_full_unstemmed | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| title_short | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| title_sort | Consolidation of soft clay foundation improved by geosynthetic reinforced granular columns : numerical evaluation |
| topic | Aterros Argila Geossintéticos |
| url | https://repositorio.unb.br/handle/10482/43370 https://doi.org/10.1016/j.jrmge.2021.03.004 |