Bi-layer diaphragm walls: structural and sectional analysis
The bi-layer diaphragm wall, a new slurry wall type designed to cope with the problem of watertightness is studied in this paper. These walls consist of two bonded concrete layers, the first, a conventional Reinforced Concrete (RC) diaphragm wall, and the second, a Sprayed Steel Fibre Reinforced Con...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Vilnius Gediminas Technical University
2016-05-01
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| Series: | Journal of Civil Engineering and Management |
| Subjects: | |
| Online Access: | http://journals.vgtu.lt/index.php/JCEM/article/view/1344 |
| _version_ | 1818875029682651136 |
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| author | Luis Segura-Castillo Antonio Aguado Albert De La Fuente Antequera Alejandro Josa |
| author_facet | Luis Segura-Castillo Antonio Aguado Albert De La Fuente Antequera Alejandro Josa |
| author_sort | Luis Segura-Castillo |
| collection | DOAJ |
| description | The bi-layer diaphragm wall, a new slurry wall type designed to cope with the problem of watertightness is studied in this paper. These walls consist of two bonded concrete layers, the first, a conventional Reinforced Concrete (RC) diaphragm wall, and the second, a Sprayed Steel Fibre Reinforced Concrete (SFRC). The main objective of this paper is to analyze the structural and sectional behaviour of these walls. A study in the form of an uncoupled structural-section analysis based on various hypothetical cases of bi-layer diaphragm walls was performed to fulfil the objective. It is concluded that there exists a potential of reduction in the reinforcement of the RC layer through the structural use of the SFRC layer. However, when the reduction is quantified, even though a reduction of between 3.2% and 1.7% in the RC reinforcement is confirmed, it appears insufficient to offer a cost-effective solution. Nonetheless, the system becomes a promising solution when particular conditions are taken into account, such as basement space limitations.
First published online: 04 Sep 2015 |
| first_indexed | 2024-12-19T13:20:00Z |
| format | Article |
| id | doaj.art-720a035f37be44ada2a5d7b723fe572e |
| institution | Directory Open Access Journal |
| issn | 1392-3730 1822-3605 |
| language | English |
| last_indexed | 2024-12-19T13:20:00Z |
| publishDate | 2016-05-01 |
| publisher | Vilnius Gediminas Technical University |
| record_format | Article |
| series | Journal of Civil Engineering and Management |
| spelling | doaj.art-720a035f37be44ada2a5d7b723fe572e2022-12-21T20:19:44ZengVilnius Gediminas Technical UniversityJournal of Civil Engineering and Management1392-37301822-36052016-05-0122510.3846/13923730.2014.914085Bi-layer diaphragm walls: structural and sectional analysisLuis Segura-Castillo0Antonio Aguado1Albert De La Fuente Antequera2Alejandro Josa3Technical University of Catalonia-Barcelona Tech (UPC), School of Civil Engineering (ETSECCPB), C/Jordi Girona 1-3 Modul C1, Barcelona 08034, Spain; Instituto de Estructuras y Transporte, Facultad de Ingeniería, Universidad de la República (UdelaR), J. Herrera y Reissig 565, 11300, Montevideo, UruguayTechnical University of Catalonia-Barcelona Tech (UPC), School of Civil Engineering (ETSECCPB), C/Jordi Girona 1-3 Modul C1, Barcelona 08034, SpainTechnical University of Catalonia-Barcelona Tech (UPC), School of Civil Engineering (ETSECCPB), C/Jordi Girona 1-3 Modul C1, Barcelona 08034, SpainDepartment of Geotechnical Engineering and Geosciences, School of Civil Engineering, Universitat Politècnica de Catalunya-Barcelona Tech (UPC), C/Jordi Girona 1-3 Modul D2, 08034 Barcelona, SpainThe bi-layer diaphragm wall, a new slurry wall type designed to cope with the problem of watertightness is studied in this paper. These walls consist of two bonded concrete layers, the first, a conventional Reinforced Concrete (RC) diaphragm wall, and the second, a Sprayed Steel Fibre Reinforced Concrete (SFRC). The main objective of this paper is to analyze the structural and sectional behaviour of these walls. A study in the form of an uncoupled structural-section analysis based on various hypothetical cases of bi-layer diaphragm walls was performed to fulfil the objective. It is concluded that there exists a potential of reduction in the reinforcement of the RC layer through the structural use of the SFRC layer. However, when the reduction is quantified, even though a reduction of between 3.2% and 1.7% in the RC reinforcement is confirmed, it appears insufficient to offer a cost-effective solution. Nonetheless, the system becomes a promising solution when particular conditions are taken into account, such as basement space limitations. First published online: 04 Sep 2015http://journals.vgtu.lt/index.php/JCEM/article/view/1344waterproofdiaphragm wallsfibre concretesprayed concretenumerical analysisFEM |
| spellingShingle | Luis Segura-Castillo Antonio Aguado Albert De La Fuente Antequera Alejandro Josa Bi-layer diaphragm walls: structural and sectional analysis Journal of Civil Engineering and Management waterproof diaphragm walls fibre concrete sprayed concrete numerical analysis FEM |
| title | Bi-layer diaphragm walls: structural and sectional analysis |
| title_full | Bi-layer diaphragm walls: structural and sectional analysis |
| title_fullStr | Bi-layer diaphragm walls: structural and sectional analysis |
| title_full_unstemmed | Bi-layer diaphragm walls: structural and sectional analysis |
| title_short | Bi-layer diaphragm walls: structural and sectional analysis |
| title_sort | bi layer diaphragm walls structural and sectional analysis |
| topic | waterproof diaphragm walls fibre concrete sprayed concrete numerical analysis FEM |
| url | http://journals.vgtu.lt/index.php/JCEM/article/view/1344 |
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