Stability analysis and optimization of concrete column-supported embankments in soft soil
Concrete columns are used to support embankments built on soft soils. Use of three groups of centrifuge model tests, this study exhibited the global performance of embankments supported by plain concrete columns and reinforced concrete columns. The objective of the centrifuge tests was to reveal the...
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| Veröffentlicht in: | Acta geotechnica 2024-05, Vol.19 (5), p.2515-2531 |
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| creator | Xia, Boyang Zheng, Gang Zhou, Haizuo Yu, Xiaoxuan Zhao, Jiapeng Diao, Yu |
| description | Concrete columns are used to support embankments built on soft soils. Use of three groups of centrifuge model tests, this study exhibited the global performance of embankments supported by plain concrete columns and reinforced concrete columns. The objective of the centrifuge tests was to reveal the failure mechanism and the contribution of the reinforced concrete columns to embankment stability. In comparison with plain concrete columns, use of reinforced concrete columns alleviated the release and transfer of stress in the ruptured concrete matrix, thereby avoiding continuous failure, which improved the overall stability of the embankment. Based on parametric analysis, Pareto multi-objective optimization method was proposed to determine the optimal column configuration design. The optimization results showed that placing reinforced concrete columns from the toe to the shoulder, combined with the installation of plain concrete columns near the embankment’s centerline, not only satisfies the stability requirement of the embankment, but also minimizes construction costs and resource usage. Reinforced concrete columns which positioned of Rows 1–4 was suggested in this study. |
| doi_str_mv | 10.1007/s11440-024-02302-2 |
| format | Article |
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Use of three groups of centrifuge model tests, this study exhibited the global performance of embankments supported by plain concrete columns and reinforced concrete columns. The objective of the centrifuge tests was to reveal the failure mechanism and the contribution of the reinforced concrete columns to embankment stability. In comparison with plain concrete columns, use of reinforced concrete columns alleviated the release and transfer of stress in the ruptured concrete matrix, thereby avoiding continuous failure, which improved the overall stability of the embankment. Based on parametric analysis, Pareto multi-objective optimization method was proposed to determine the optimal column configuration design. The optimization results showed that placing reinforced concrete columns from the toe to the shoulder, combined with the installation of plain concrete columns near the embankment’s centerline, not only satisfies the stability requirement of the embankment, but also minimizes construction costs and resource usage. 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Use of three groups of centrifuge model tests, this study exhibited the global performance of embankments supported by plain concrete columns and reinforced concrete columns. The objective of the centrifuge tests was to reveal the failure mechanism and the contribution of the reinforced concrete columns to embankment stability. In comparison with plain concrete columns, use of reinforced concrete columns alleviated the release and transfer of stress in the ruptured concrete matrix, thereby avoiding continuous failure, which improved the overall stability of the embankment. Based on parametric analysis, Pareto multi-objective optimization method was proposed to determine the optimal column configuration design. The optimization results showed that placing reinforced concrete columns from the toe to the shoulder, combined with the installation of plain concrete columns near the embankment’s centerline, not only satisfies the stability requirement of the embankment, but also minimizes construction costs and resource usage. 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Use of three groups of centrifuge model tests, this study exhibited the global performance of embankments supported by plain concrete columns and reinforced concrete columns. The objective of the centrifuge tests was to reveal the failure mechanism and the contribution of the reinforced concrete columns to embankment stability. In comparison with plain concrete columns, use of reinforced concrete columns alleviated the release and transfer of stress in the ruptured concrete matrix, thereby avoiding continuous failure, which improved the overall stability of the embankment. Based on parametric analysis, Pareto multi-objective optimization method was proposed to determine the optimal column configuration design. The optimization results showed that placing reinforced concrete columns from the toe to the shoulder, combined with the installation of plain concrete columns near the embankment’s centerline, not only satisfies the stability requirement of the embankment, but also minimizes construction costs and resource usage. Reinforced concrete columns which positioned of Rows 1–4 was suggested in this study.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11440-024-02302-2</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-3346-160X</orcidid></addata></record> |
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| subjects | Centrifuge model Centrifuges Complex Fluids and Microfluidics Concrete columns Configuration management Construction costs Design optimization Embankment stability Embankments Engineering Failure mechanisms Foundations Geoengineering Geotechnical Engineering & Applied Earth Sciences Hydraulics Multiple objective analysis Optimization Parametric analysis Pareto optimization Reinforced concrete Research Paper Soft and Granular Matter Soft soils Soil Science & Conservation Solid Mechanics Stability Stability analysis Stress transfer |
| title | Stability analysis and optimization of concrete column-supported embankments in soft soil |
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