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Global Stability and Failure Performance of Geosynthetic-Reinforced Column-Supported Embankments.

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Title: Global Stability and Failure Performance of Geosynthetic-Reinforced Column-Supported Embankments.
Authors: Xia, Boyang1 (AUTHOR) boyang_1027@tju.edu.cn, Zheng, Gang2 (AUTHOR) zhenggang1895@vip.163.com, Zhou, Haizuo3 (AUTHOR) hzzhou@tju.edu.cn, Kalumba, Denis4 (AUTHOR) denis.kalumba@uct.ac.za
Source: Journal of Geotechnical & Geoenvironmental Engineering. Jun2026, Vol. 152 Issue 6, p1-15. 15p.
Subject Terms: *Structural failures, *Embankments, *Dynamic stability, *Strains & stresses (Mechanics), *Effective stress (Soil mechanics), *Computer simulation
Abstract: The geosynthetic-reinforced column-supported embankment (GRCSE) system offers a time-efficient solution for construction on soft ground. However, its global failure mechanisms need further investigation due to the complex interactions among different types of columns (e.g., stone columns, deep cement mixing columns, and concrete columns), geosynthetics, and soft soil. In this study, two centrifuge model tests were conducted to investigate the global stability of GRCSE systems with different configurations of basal reinforcement layers. The primary objectives of these tests were to reveal the stress transfer mechanisms and failure processes in the GRCSE system. The results demonstrated that the concrete columns underwent bending failure, displaying progressive failure characteristics under increased surcharge loading. The geosynthetic reinforcement exhibited rupture failure at both the embankment centerline and shoulder. Increasing the number of basal reinforcement layers improved load transfer efficiency, thereby constraining the horizontal displacement of the GRCSE system and enhancing the resistance of the columns to bending failure. Numerical simulations further revealed the complete evolution of soil arching within the GRCSE system. The deflection and damage observed in the column rows were directly correlated with the degradation of the soil arching. Finally, based on the combined results of centrifuge model tests and numerical simulations, the propagation of failure in the GRCSE system under increased surcharge loading was characterized. These findings contribute to the global stability evaluation of GRCSE systems. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 193068741
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Global Stability and Failure Performance of Geosynthetic-Reinforced Column-Supported Embankments.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Xia%2C+Boyang%22">Xia, Boyang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> boyang_1027@tju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zheng%2C+Gang%22">Zheng, Gang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> zhenggang1895@vip.163.com</i><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Haizuo%22">Zhou, Haizuo</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> hzzhou@tju.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Kalumba%2C+Denis%22">Kalumba, Denis</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> denis.kalumba@uct.ac.za</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Geotechnical+%26+Geoenvironmental+Engineering%22">Journal of Geotechnical & Geoenvironmental Engineering</searchLink>. Jun2026, Vol. 152 Issue 6, p1-15. 15p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Structural+failures%22">Structural failures</searchLink><br />*<searchLink fieldCode="DE" term="%22Embankments%22">Embankments</searchLink><br />*<searchLink fieldCode="DE" term="%22Dynamic+stability%22">Dynamic stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Strains+%26+stresses+%28Mechanics%29%22">Strains & stresses (Mechanics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Effective+stress+%28Soil+mechanics%29%22">Effective stress (Soil mechanics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The geosynthetic-reinforced column-supported embankment (GRCSE) system offers a time-efficient solution for construction on soft ground. However, its global failure mechanisms need further investigation due to the complex interactions among different types of columns (e.g., stone columns, deep cement mixing columns, and concrete columns), geosynthetics, and soft soil. In this study, two centrifuge model tests were conducted to investigate the global stability of GRCSE systems with different configurations of basal reinforcement layers. The primary objectives of these tests were to reveal the stress transfer mechanisms and failure processes in the GRCSE system. The results demonstrated that the concrete columns underwent bending failure, displaying progressive failure characteristics under increased surcharge loading. The geosynthetic reinforcement exhibited rupture failure at both the embankment centerline and shoulder. Increasing the number of basal reinforcement layers improved load transfer efficiency, thereby constraining the horizontal displacement of the GRCSE system and enhancing the resistance of the columns to bending failure. Numerical simulations further revealed the complete evolution of soil arching within the GRCSE system. The deflection and damage observed in the column rows were directly correlated with the degradation of the soil arching. Finally, based on the combined results of centrifuge model tests and numerical simulations, the propagation of failure in the GRCSE system under increased surcharge loading was characterized. These findings contribute to the global stability evaluation of GRCSE systems. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/JGGEFK.GTENG-14456
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 1
    Subjects:
      – SubjectFull: Structural failures
        Type: general
      – SubjectFull: Embankments
        Type: general
      – SubjectFull: Dynamic stability
        Type: general
      – SubjectFull: Strains & stresses (Mechanics)
        Type: general
      – SubjectFull: Effective stress (Soil mechanics)
        Type: general
      – SubjectFull: Computer simulation
        Type: general
    Titles:
      – TitleFull: Global Stability and Failure Performance of Geosynthetic-Reinforced Column-Supported Embankments.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Xia, Boyang
      – PersonEntity:
          Name:
            NameFull: Zheng, Gang
      – PersonEntity:
          Name:
            NameFull: Zhou, Haizuo
      – PersonEntity:
          Name:
            NameFull: Kalumba, Denis
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      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 10900241
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            – Type: volume
              Value: 152
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: Journal of Geotechnical & Geoenvironmental Engineering
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