Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam
The goal of this study is to assess the application of the Hardening soil model in predicting the deformation of retaining walls of excavations in 2D and 3D finite element analysis at the Ho Chi Minh Metro project. Designed as the deepest underground station in the first metro line built in Ho Chi M...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Polish Academy of Sciences
2024-03-01
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| Series: | Archives of Civil Engineering |
| Subjects: | |
| Online Access: | https://journals.pan.pl/Content/130785/ACE_2024_01_20.pdf |
| _version_ | 1797234821719654400 |
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| author | Luc Manh Bui Li Wu Yao Cheng Dao Jun Dong |
| author_facet | Luc Manh Bui Li Wu Yao Cheng Dao Jun Dong |
| author_sort | Luc Manh Bui |
| collection | DOAJ |
| description | The goal of this study is to assess the application of the Hardening soil model in predicting the deformation of retaining walls of excavations in 2D and 3D finite element analysis at the Ho Chi Minh Metro project. Designed as the deepest underground station in the first metro line built in Ho Chi Minh City (HCMC), Opera House station is located in an area with a dense building zone and close to historical buildings. A summary of the input soil properties is provided using data from site investigations, in-situ tests, and laboratory tests. By numerical simulation using the Hardening soil model, the parameters of the soil stiffness modulus value are verified based on the Standard Penetration Test (SPT), and Pressuremeter test (PMT). The obtained results of the numerical analysis by 2D and 3D finite element methods, and field observations indicate that applying the Hardening soil model with soil stiffness modulus obtained in situ tests gives reasonable results on the displacement of the retaining wall at the final phase. The relationship between the SPT value and the stiffness modulus of HCMC sand is a function of depth. This correlation is obtained through the comparison of wall deformation between the simulation and monitoring at the construction site. The results of the difference between 2D and 3D finite element analysis also are discussed in this study. |
| first_indexed | 2024-04-24T16:38:10Z |
| format | Article |
| id | doaj.art-371e78b66709445082b6efac2b7dc0d2 |
| institution | Directory Open Access Journal |
| issn | 1230-2945 2300-3103 |
| language | English |
| last_indexed | 2024-04-24T16:38:10Z |
| publishDate | 2024-03-01 |
| publisher | Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Civil Engineering |
| spelling | doaj.art-371e78b66709445082b6efac2b7dc0d22024-03-29T12:12:25ZengPolish Academy of SciencesArchives of Civil Engineering1230-29452300-31032024-03-01No 1357373https://doi.org/10.24425/ace.2024.148916Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, VietnamLuc Manh Bui0https://orcid.org/0009-0006-7816-8796Li Wu1https://orcid.org/0000-0001-9651-3772Yao Cheng2https://orcid.org/0000-0003-2925-2773Dao Jun Dong3https://orcid.org/0009-0005-9055-5564Faculty of Engineering, China University of Geosciences (Wuhan), No. 388 Lumo Road, Wuhan 430074, Hubei, ChinaFaculty of Engineering, China University of Geosciences (Wuhan), No. 388 Lumo Road, Wuhan 430074, Hubei, ChinaFaculty of Engineering, China University of Geosciences (Wuhan), No. 388 Lumo Road, Wuhan 430074, Hubei, ChinaFaculty of Engineering, China University of Geosciences (Wuhan), No. 388 Lumo Road, Wuhan 430074, Hubei, ChinaThe goal of this study is to assess the application of the Hardening soil model in predicting the deformation of retaining walls of excavations in 2D and 3D finite element analysis at the Ho Chi Minh Metro project. Designed as the deepest underground station in the first metro line built in Ho Chi Minh City (HCMC), Opera House station is located in an area with a dense building zone and close to historical buildings. A summary of the input soil properties is provided using data from site investigations, in-situ tests, and laboratory tests. By numerical simulation using the Hardening soil model, the parameters of the soil stiffness modulus value are verified based on the Standard Penetration Test (SPT), and Pressuremeter test (PMT). The obtained results of the numerical analysis by 2D and 3D finite element methods, and field observations indicate that applying the Hardening soil model with soil stiffness modulus obtained in situ tests gives reasonable results on the displacement of the retaining wall at the final phase. The relationship between the SPT value and the stiffness modulus of HCMC sand is a function of depth. This correlation is obtained through the comparison of wall deformation between the simulation and monitoring at the construction site. The results of the difference between 2D and 3D finite element analysis also are discussed in this study.https://journals.pan.pl/Content/130785/ACE_2024_01_20.pdfdeep excavationho chi minh mrthardening soil modelopera house stationwall deflections |
| spellingShingle | Luc Manh Bui Li Wu Yao Cheng Dao Jun Dong Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam Archives of Civil Engineering deep excavation ho chi minh mrt hardening soil model opera house station wall deflections |
| title | Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam |
| title_full | Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam |
| title_fullStr | Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam |
| title_full_unstemmed | Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam |
| title_short | Evaluation of using hardening soil model for predicting wall deflections caused by deep excavation: A case study at the Ho Chi Minh metro line 1, Vietnam |
| title_sort | evaluation of using hardening soil model for predicting wall deflections caused by deep excavation a case study at the ho chi minh metro line 1 vietnam |
| topic | deep excavation ho chi minh mrt hardening soil model opera house station wall deflections |
| url | https://journals.pan.pl/Content/130785/ACE_2024_01_20.pdf |
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