Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay

In response to the growing demand for infrastructure development, utilizing ground improvement techniques on soft soils has become imperative. This study concentrates on enhancing soft soil, primarily via stiffer elements (stone columns) and drained members (sand drains, prefabricated vertical drain...

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Main Authors: Ahmed M. Omar, Shehab S. Agaiby, Mohamed A. EL-Khouly
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Ain Shams Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2090447923003891
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author Ahmed M. Omar
Shehab S. Agaiby
Mohamed A. EL-Khouly
author_facet Ahmed M. Omar
Shehab S. Agaiby
Mohamed A. EL-Khouly
author_sort Ahmed M. Omar
collection DOAJ
description In response to the growing demand for infrastructure development, utilizing ground improvement techniques on soft soils has become imperative. This study concentrates on enhancing soft soil, primarily via stiffer elements (stone columns) and drained members (sand drains, prefabricated vertical drains). The research entails a case study of an embankment on soft clay in Finland, evaluating both unimproved and improved (PVDs) sections. Verification of the Haarajoki embankment case study precedes parametric analyses probing stiffness's effect on consolidation behavior. Outcomes highlight stone columns' superior settlement reduction and consolidation rate compared to sand drains and PVDs. Examination of axial stiffness ratios and settlement improvement factors between stiffer and drained elements, resultant insights culminate in a design chart for embankments over soft soil, incorporating embankment geometry, clay properties, and improved column parameters to ascertain settlement improvements and global safety factors.
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spelling doaj.art-9fca2045ecf549ca94aeb22a24da6c892024-03-21T05:36:23ZengElsevierAin Shams Engineering Journal2090-44792024-03-01153102500Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clayAhmed M. Omar0Shehab S. Agaiby1Mohamed A. EL-Khouly2Geotechnical Engineering, Soil Mechanics and Foundations Research Laboratory, Faculty of Engineering, Cairo University, Giza 12311, EgyptCorresponding author.; Geotechnical Engineering, Soil Mechanics and Foundations Research Laboratory, Faculty of Engineering, Cairo University, Giza 12311, EgyptGeotechnical Engineering, Soil Mechanics and Foundations Research Laboratory, Faculty of Engineering, Cairo University, Giza 12311, EgyptIn response to the growing demand for infrastructure development, utilizing ground improvement techniques on soft soils has become imperative. This study concentrates on enhancing soft soil, primarily via stiffer elements (stone columns) and drained members (sand drains, prefabricated vertical drains). The research entails a case study of an embankment on soft clay in Finland, evaluating both unimproved and improved (PVDs) sections. Verification of the Haarajoki embankment case study precedes parametric analyses probing stiffness's effect on consolidation behavior. Outcomes highlight stone columns' superior settlement reduction and consolidation rate compared to sand drains and PVDs. Examination of axial stiffness ratios and settlement improvement factors between stiffer and drained elements, resultant insights culminate in a design chart for embankments over soft soil, incorporating embankment geometry, clay properties, and improved column parameters to ascertain settlement improvements and global safety factors.http://www.sciencedirect.com/science/article/pii/S2090447923003891Soil improvementSoft clayStone columnsSand drainsPrefabricated vertical drains (PVDs)Plaxis 3D
spellingShingle Ahmed M. Omar
Shehab S. Agaiby
Mohamed A. EL-Khouly
Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
Ain Shams Engineering Journal
Soil improvement
Soft clay
Stone columns
Sand drains
Prefabricated vertical drains (PVDs)
Plaxis 3D
title Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
title_full Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
title_fullStr Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
title_full_unstemmed Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
title_short Consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
title_sort consolidation behavior and load transfer efficiency in a comparative study between stiffer and drained elements in soft clay
topic Soil improvement
Soft clay
Stone columns
Sand drains
Prefabricated vertical drains (PVDs)
Plaxis 3D
url http://www.sciencedirect.com/science/article/pii/S2090447923003891
work_keys_str_mv AT ahmedmomar consolidationbehaviorandloadtransferefficiencyinacomparativestudybetweenstifferanddrainedelementsinsoftclay
AT shehabsagaiby consolidationbehaviorandloadtransferefficiencyinacomparativestudybetweenstifferanddrainedelementsinsoftclay
AT mohamedaelkhouly consolidationbehaviorandloadtransferefficiencyinacomparativestudybetweenstifferanddrainedelementsinsoftclay