Consolidation of soft clay foundation improved by geosynthetic-reinforced granular columns: Numerical evaluation
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...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-10-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775521000457 |
| _version_ | 1818348207504097280 |
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| author | Nima R. Alkhorshid Gregório L.S. Araujo Ennio M. Palmeira |
| author_facet | Nima R. Alkhorshid Gregório L.S. Araujo Ennio M. Palmeira |
| author_sort | Nima R. Alkhorshid |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-13T17:46:23Z |
| format | Article |
| id | doaj.art-4eef7c99f92c4914a2f9b6974410eb22 |
| institution | Directory Open Access Journal |
| issn | 1674-7755 |
| language | English |
| last_indexed | 2024-12-13T17:46:23Z |
| publishDate | 2021-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj.art-4eef7c99f92c4914a2f9b6974410eb222022-12-21T23:36:36ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552021-10-0113511731181Consolidation of soft clay foundation improved by geosynthetic-reinforced granular columns: Numerical evaluationNima R. Alkhorshid0Gregório L.S. Araujo1Ennio M. Palmeira2Institute of Integrated Engineering, Federal University of Itajubá – Itabira Campus, Itabira, Minas Gerais, 35903-087, Brazil; Corresponding author.Department of Civil and Environmental Engineering, University of Brasília, Brasília, Distrito Federal, 70910-900, BrazilDepartment of Civil and Environmental Engineering, University of Brasília, Brasília, Distrito Federal, 70910-900, BrazilSoft 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.http://www.sciencedirect.com/science/article/pii/S1674775521000457GeosyntheticEmbankmentGranular columnConsolidationSoft soil |
| spellingShingle | Nima R. Alkhorshid Gregório L.S. Araujo Ennio M. Palmeira Consolidation of soft clay foundation improved by geosynthetic-reinforced granular columns: Numerical evaluation Journal of Rock Mechanics and Geotechnical Engineering Geosynthetic Embankment Granular column Consolidation Soft soil |
| 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 | Geosynthetic Embankment Granular column Consolidation Soft soil |
| url | http://www.sciencedirect.com/science/article/pii/S1674775521000457 |
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