Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank
This paper presents a finite element analysis on a soft embankment foundation improved by prefabricated vertical drains. A plane strain analysis was performed using equivalent permeability. The predictions of settlement, pore water pressure, and lateral displacement were compared with the available...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2948286 |
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| author | Changqing Qi Liuyang Li Jiabing Qi |
| author_facet | Changqing Qi Liuyang Li Jiabing Qi |
| author_sort | Changqing Qi |
| collection | DOAJ |
| description | This paper presents a finite element analysis on a soft embankment foundation improved by prefabricated vertical drains. A plane strain analysis was performed using equivalent permeability. The predictions of settlement, pore water pressure, and lateral displacement were compared with the available field measurement data, and a general fair agreement was observed. Numerical results indicate that the settlement below the left part of the embankment is obviously larger than that of the right part. The maximum settlement occurs below the left shoulder of the embankment and reaches 1.26 m. The entire shallow foundation shows a movement trend to the left toe. The designed left embankment shoulder was suggested to be 0.16 m higher than the right side. Monitoring and simulation results demonstrate that the foundation is stable during the construction. The factor of safety at the end of the final loading stage is about 1.81. The performance of the embankment is consistent with the design prescriptions, confirming the effectiveness of the soil improved technique included in this project. |
| format | Article |
| id | doaj-art-0cc0652294194b0aa51c2e3886776e7f |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0cc0652294194b0aa51c2e3886776e7f2025-02-03T01:25:32ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/29482862948286Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River BankChangqing Qi0Liuyang Li1Jiabing Qi2School of Earth Sciences and Engineering, Hohai University, Nanjing 211100, ChinaSchool of Earth Sciences and Engineering, Hohai University, Nanjing 211100, ChinaSchool of Earth Sciences and Engineering, Hohai University, Nanjing 211100, ChinaThis paper presents a finite element analysis on a soft embankment foundation improved by prefabricated vertical drains. A plane strain analysis was performed using equivalent permeability. The predictions of settlement, pore water pressure, and lateral displacement were compared with the available field measurement data, and a general fair agreement was observed. Numerical results indicate that the settlement below the left part of the embankment is obviously larger than that of the right part. The maximum settlement occurs below the left shoulder of the embankment and reaches 1.26 m. The entire shallow foundation shows a movement trend to the left toe. The designed left embankment shoulder was suggested to be 0.16 m higher than the right side. Monitoring and simulation results demonstrate that the foundation is stable during the construction. The factor of safety at the end of the final loading stage is about 1.81. The performance of the embankment is consistent with the design prescriptions, confirming the effectiveness of the soil improved technique included in this project.http://dx.doi.org/10.1155/2018/2948286 |
| spellingShingle | Changqing Qi Liuyang Li Jiabing Qi Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank Advances in Civil Engineering |
| title | Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank |
| title_full | Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank |
| title_fullStr | Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank |
| title_full_unstemmed | Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank |
| title_short | Deformation and Stability of Soft Foundation Improved by Prefabricated Vertical Drains Adjacent to River Bank |
| title_sort | deformation and stability of soft foundation improved by prefabricated vertical drains adjacent to river bank |
| url | http://dx.doi.org/10.1155/2018/2948286 |
| work_keys_str_mv | AT changqingqi deformationandstabilityofsoftfoundationimprovedbyprefabricatedverticaldrainsadjacenttoriverbank AT liuyangli deformationandstabilityofsoftfoundationimprovedbyprefabricatedverticaldrainsadjacenttoriverbank AT jiabingqi deformationandstabilityofsoftfoundationimprovedbyprefabricatedverticaldrainsadjacenttoriverbank |