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A closed-form solution for column-supported embankments with geosynthetic reinforcement
Lin-Shuang Zhao1; Wan-Huan Zhou1,2; Xueyu Geng3; Ka-Veng Yuen1; Behzad Fatahi4
2019-02-08
Source PublicationGeotextiles and Geomembranes
ISSN0266-1144
Volume47Issue:3Pages:389-401
Abstract

Soil arching effect results from the non-uniform stiffness in a geosynthetic-reinforced and column-supported embankment system. However, most theoretical models ignore the impact of modulus difference on the calculation of load transfer. In this study, a generalized mathematical model is presented to investigate the soil arching effect, with consideration given to the modulus ratio between columns and the surrounding soil. For simplification, a cylindrical unit cell is drawn to study the deformation compatibility among embankment fills, geosynthetics, columns, and subsoils. A deformed shape function is introduced to describe the relationship between the column and the adjacent soil. The measured data gained from a full-scale test are applied to demonstrate the application of this model. In the parametric study, certain influencing factors, such as column spacing, column length, embankment height, modulus ratio, and tensile strength of geosynthetic reinforcement, are analyzed to investigate the performance of the embankment system. This demonstrates that the inclusion of a geosynthetic reinforcement or enlargement of the modulus ratio can increase the load transfer efficiency. When enhancing the embankment height or applying an additional loading, the height of the load transfer platform tends to be reduced. However, a relatively long column has little impact on the load transfer platform.

KeywordGeosynthetics Column-supported Embankment Soil Arching Modulus Ratio Stress Ratio Axisymmetric Modelling
DOI10.1016/j.geotexmem.2019.01.006
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000466055800011
PublisherELSEVIER SCI LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Scopus ID2-s2.0-85061126012
Fulltext Access
FWCI2.6640158
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING
Faculty of Science and Technology
Corresponding AuthorWan-Huan Zhou
Affiliation1.Department of Civil and Environmental Engineering,Faculty of Science and Technology,University of Macau,China
2.UMacau Research Institute,Zhuhai,China
3.School of Engineering,The University of Warwick,Coventry,CV4 7AL,United Kingdom
4.School of Civil and Environmental Engineering,University of Technology Sydney,Sydney,Australia
First Author AffilicationFaculty of Science and Technology
Corresponding Author AffilicationFaculty of Science and Technology;  University of Macau
Recommended Citation
GB/T 7714
Lin-Shuang Zhao,Wan-Huan Zhou,Xueyu Geng,et al. A closed-form solution for column-supported embankments with geosynthetic reinforcement[J]. Geotextiles and Geomembranes,2019,47(3):389-401.
APA Lin-Shuang Zhao,Wan-Huan Zhou,Xueyu Geng,Ka-Veng Yuen,&Behzad Fatahi.(2019).A closed-form solution for column-supported embankments with geosynthetic reinforcement.Geotextiles and Geomembranes,47(3),389-401.
MLA Lin-Shuang Zhao,et al."A closed-form solution for column-supported embankments with geosynthetic reinforcement".Geotextiles and Geomembranes 47.3(2019):389-401.
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