Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach
The structural performance of shield-driven tunnel linings is considerably affected by the existence of segmental joints. Nevertheless, segmental tunnel linings are commonly modelled as isotropic structures in engineering practice, thereby ignoring the joint-induced stiffness reduction in numerical...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Pouyan Press
2021-01-01
|
| Series: | Computational Engineering and Physical Modeling |
| Subjects: | |
| Online Access: | https://www.jcepm.com/article_122041_76b2c6642e619b5bc5097fb3d2fffbf7.pdf |
| _version_ | 1797769115249672192 |
|---|---|
| author | Andreas-Nizar Granitzer Franz Tschuchnigg |
| author_facet | Andreas-Nizar Granitzer Franz Tschuchnigg |
| author_sort | Andreas-Nizar Granitzer |
| collection | DOAJ |
| description | The structural performance of shield-driven tunnel linings is considerably affected by the existence of segmental joints. Nevertheless, segmental tunnel linings are commonly modelled as isotropic structures in engineering practice, thereby ignoring the joint-induced stiffness reduction in numerical analysis. A more realistic approach is to consider the tunnel structure as continuous ring with adjusted rigidities which is also referred to as indirect-joint model. However, this modeling approach is a complicated task since it requires the definition of anisotropic stiffness parameters. In this context, the present paper introduces a hybrid modeling approach, which combines analytical solutions and numerical studies. Based on extensive numerical studies, anisotropic stiffness parameters are defined to model an existing drainage tunnel (SDT). Finally, a case study is discussed, where the developed indirect-joint model is used to investigate the structural response of the SDT. In this context, particular emphasis is placed on the deformation of the tunnel crown developing throughout the entire construction phase. |
| first_indexed | 2024-03-12T21:04:11Z |
| format | Article |
| id | doaj.art-a5dc86878d5a4c9c8747dd4253f5ec53 |
| institution | Directory Open Access Journal |
| issn | 2588-6959 |
| language | English |
| last_indexed | 2024-03-12T21:04:11Z |
| publishDate | 2021-01-01 |
| publisher | Pouyan Press |
| record_format | Article |
| series | Computational Engineering and Physical Modeling |
| spelling | doaj.art-a5dc86878d5a4c9c8747dd4253f5ec532023-07-30T23:11:26ZengPouyan PressComputational Engineering and Physical Modeling2588-69592021-01-014111810.22115/cepm.2021.247314.1130122041Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling ApproachAndreas-Nizar Granitzer0Franz Tschuchnigg1Institute of Soil Mechanics, Foundation Engineering and Computational Geotechnics, Graz University of Technology, AustriaInstitute of Soil Mechanics, Foundation Engineering and Computational Geotechnics, Graz University of Technology, AustriaThe structural performance of shield-driven tunnel linings is considerably affected by the existence of segmental joints. Nevertheless, segmental tunnel linings are commonly modelled as isotropic structures in engineering practice, thereby ignoring the joint-induced stiffness reduction in numerical analysis. A more realistic approach is to consider the tunnel structure as continuous ring with adjusted rigidities which is also referred to as indirect-joint model. However, this modeling approach is a complicated task since it requires the definition of anisotropic stiffness parameters. In this context, the present paper introduces a hybrid modeling approach, which combines analytical solutions and numerical studies. Based on extensive numerical studies, anisotropic stiffness parameters are defined to model an existing drainage tunnel (SDT). Finally, a case study is discussed, where the developed indirect-joint model is used to investigate the structural response of the SDT. In this context, particular emphasis is placed on the deformation of the tunnel crown developing throughout the entire construction phase.https://www.jcepm.com/article_122041_76b2c6642e619b5bc5097fb3d2fffbf7.pdf3d finite-element analysistunnelsegmental liningjoint stiffnesstunnel heave |
| spellingShingle | Andreas-Nizar Granitzer Franz Tschuchnigg Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach Computational Engineering and Physical Modeling 3d finite-element analysis tunnel segmental lining joint stiffness tunnel heave |
| title | Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach |
| title_full | Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach |
| title_fullStr | Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach |
| title_full_unstemmed | Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach |
| title_short | Numerical Analysis of Segmental Tunnel Linings employing a Hybrid Modeling Approach |
| title_sort | numerical analysis of segmental tunnel linings employing a hybrid modeling approach |
| topic | 3d finite-element analysis tunnel segmental lining joint stiffness tunnel heave |
| url | https://www.jcepm.com/article_122041_76b2c6642e619b5bc5097fb3d2fffbf7.pdf |
| work_keys_str_mv | AT andreasnizargranitzer numericalanalysisofsegmentaltunnelliningsemployingahybridmodelingapproach AT franztschuchnigg numericalanalysisofsegmentaltunnelliningsemployingahybridmodelingapproach |