Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil
The deep mixing method (DMM) a soil solidification technique, involves mechanically blending the natural soft soil with a binder to create stiffer soil columns or panel walls, enhancing stability in soft ground areas. In this study, different configurations of deep mixed (DM) columns with a consiste...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Soils and Foundations |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0038080625000125 |
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| author | Sujata Fulambarkar Bappaditya Manna J.T. Shahu |
| author_facet | Sujata Fulambarkar Bappaditya Manna J.T. Shahu |
| author_sort | Sujata Fulambarkar |
| collection | DOAJ |
| description | The deep mixing method (DMM) a soil solidification technique, involves mechanically blending the natural soft soil with a binder to create stiffer soil columns or panel walls, enhancing stability in soft ground areas. In this study, different configurations of deep mixed (DM) columns with a consistent area ratio were tested under vertical loading. Various column patterns, including Square Group Columns (SGC), Longitudinal Tangent Wall (LTW), Transverse Tangent Wall (TTW), and Tangent Grid (TG), were evaluated for their response to stress-settlement, the heaving of the soft clay, and the lateral deformation of the embankment slope. Particle Image Velocimetry (PIV) was employed to analyse ground deformation during the tests. The results show that the LTW pattern has the least, while the TG pattern has the maximum heaving of soft soil and lateral deformation of the embankment slope. The LTW pattern showed the most significant strength improvement, while the TG pattern demonstrated the least enhancement in strength compared to the other patterns. A post-examination of the deformed column was conducted to understand the column failure pattern, and it was noted that the DM column primarily experienced failure due to tilting and bending, indicating that these columns did not fully mobilize their shear strength. |
| format | Article |
| id | doaj-art-481f169fee51488a959f3f77a51caf48 |
| institution | Kabale University |
| issn | 2524-1788 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Soils and Foundations |
| spelling | doaj-art-481f169fee51488a959f3f77a51caf482025-02-11T04:33:28ZengElsevierSoils and Foundations2524-17882025-03-01652101578Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soilSujata Fulambarkar0Bappaditya Manna1J.T. Shahu2Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016 IndiaCorresponding author.; Department of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016 IndiaDepartment of Civil Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016 IndiaThe deep mixing method (DMM) a soil solidification technique, involves mechanically blending the natural soft soil with a binder to create stiffer soil columns or panel walls, enhancing stability in soft ground areas. In this study, different configurations of deep mixed (DM) columns with a consistent area ratio were tested under vertical loading. Various column patterns, including Square Group Columns (SGC), Longitudinal Tangent Wall (LTW), Transverse Tangent Wall (TTW), and Tangent Grid (TG), were evaluated for their response to stress-settlement, the heaving of the soft clay, and the lateral deformation of the embankment slope. Particle Image Velocimetry (PIV) was employed to analyse ground deformation during the tests. The results show that the LTW pattern has the least, while the TG pattern has the maximum heaving of soft soil and lateral deformation of the embankment slope. The LTW pattern showed the most significant strength improvement, while the TG pattern demonstrated the least enhancement in strength compared to the other patterns. A post-examination of the deformed column was conducted to understand the column failure pattern, and it was noted that the DM column primarily experienced failure due to tilting and bending, indicating that these columns did not fully mobilize their shear strength.http://www.sciencedirect.com/science/article/pii/S0038080625000125DM ColumnColumn Installation PatternSoft SoilEmbankmentPIVFailure Pattern |
| spellingShingle | Sujata Fulambarkar Bappaditya Manna J.T. Shahu Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil Soils and Foundations DM Column Column Installation Pattern Soft Soil Embankment PIV Failure Pattern |
| title | Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| title_full | Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| title_fullStr | Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| title_full_unstemmed | Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| title_short | Effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| title_sort | effect of deep mixed column pattern on the performance of basal reinforced embankment resting on soft soil |
| topic | DM Column Column Installation Pattern Soft Soil Embankment PIV Failure Pattern |
| url | http://www.sciencedirect.com/science/article/pii/S0038080625000125 |
| work_keys_str_mv | AT sujatafulambarkar effectofdeepmixedcolumnpatternontheperformanceofbasalreinforcedembankmentrestingonsoftsoil AT bappadityamanna effectofdeepmixedcolumnpatternontheperformanceofbasalreinforcedembankmentrestingonsoftsoil AT jtshahu effectofdeepmixedcolumnpatternontheperformanceofbasalreinforcedembankmentrestingonsoftsoil |