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Simplified Finite-Element Modeling of TBM Advancement: A Novel Computational Approach.

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Title: Simplified Finite-Element Modeling of TBM Advancement: A Novel Computational Approach.
Authors: Zaiter, Hadia1 (AUTHOR) hadia.zaiter@univ-lille.fr, Mroueh, Hussein1 (AUTHOR) hussein.mroueh@univ-lille.fr, Bourgeois, Emmanuel2 (AUTHOR) emmanuel.bourgeois@univ-eiffel.fr
Source: International Journal of Geomechanics. Jun2026, Vol. 26 Issue 6, p1-13. 13p.
Subjects: Finite element method, Grouting, Excavation (Civil engineering), Soil-structure interaction, Simulation methods & models, Tunnel design & construction, Land subsidence, Computer simulation
Abstract: Developing a numerical model of tunnel excavation using a tunnel boring machine (TBM) is a difficult task due to the complexity of the phenomena involved in the advancement of the machine through the ground. The ease of use of calculation software often masks (at least in part) the representation in the numerical simulation of the actual phenomenon. Many simulations use nodal forces to account for stress relaxation at the boundary of the excavated ground and for the interaction between the TBM, the grout, and the surrounding soil. However, calibrating these models may prove difficult. This paper proposes a simple approach called the swelling method, which aims to take into account the TBM control parameters, especially the grout injection parameters. This approach allows directly defining the final stress applied to the tunnel contour, taking into account the grout pressure. The conventional and the new approaches are implemented in the finite-element code CESAR (version 2024.0.5) and tested to simulate surface settlements and lateral soil displacements induced by tunneling using a full-scale research project called TULIP (Tunneling and Limitation of Impacts on Piles) as a background. The results show a strong agreement between the two methods, but the swelling method is easier to handle and has the potential to capture the complex interactions between the TBM and the surrounding soil. The influence of the model parameters on the width of the surface settlement trough is discussed. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193068667
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Simplified Finite-Element Modeling of TBM Advancement: A Novel Computational Approach.
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  Data: <searchLink fieldCode="AR" term="%22Zaiter%2C+Hadia%22">Zaiter, Hadia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hadia.zaiter@univ-lille.fr</i><br /><searchLink fieldCode="AR" term="%22Mroueh%2C+Hussein%22">Mroueh, Hussein</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> hussein.mroueh@univ-lille.fr</i><br /><searchLink fieldCode="AR" term="%22Bourgeois%2C+Emmanuel%22">Bourgeois, Emmanuel</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> emmanuel.bourgeois@univ-eiffel.fr</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Geomechanics%22">International Journal of Geomechanics</searchLink>. Jun2026, Vol. 26 Issue 6, p1-13. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Grouting%22">Grouting</searchLink><br /><searchLink fieldCode="DE" term="%22Excavation+%28Civil+engineering%29%22">Excavation (Civil engineering)</searchLink><br /><searchLink fieldCode="DE" term="%22Soil-structure+interaction%22">Soil-structure interaction</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink><br /><searchLink fieldCode="DE" term="%22Tunnel+design+%26+construction%22">Tunnel design & construction</searchLink><br /><searchLink fieldCode="DE" term="%22Land+subsidence%22">Land subsidence</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Developing a numerical model of tunnel excavation using a tunnel boring machine (TBM) is a difficult task due to the complexity of the phenomena involved in the advancement of the machine through the ground. The ease of use of calculation software often masks (at least in part) the representation in the numerical simulation of the actual phenomenon. Many simulations use nodal forces to account for stress relaxation at the boundary of the excavated ground and for the interaction between the TBM, the grout, and the surrounding soil. However, calibrating these models may prove difficult. This paper proposes a simple approach called the swelling method, which aims to take into account the TBM control parameters, especially the grout injection parameters. This approach allows directly defining the final stress applied to the tunnel contour, taking into account the grout pressure. The conventional and the new approaches are implemented in the finite-element code CESAR (version 2024.0.5) and tested to simulate surface settlements and lateral soil displacements induced by tunneling using a full-scale research project called TULIP (Tunneling and Limitation of Impacts on Piles) as a background. The results show a strong agreement between the two methods, but the swelling method is easier to handle and has the potential to capture the complex interactions between the TBM and the surrounding soil. The influence of the model parameters on the width of the surface settlement trough is discussed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Geomechanics is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1061/IJGNAI.GMENG-12806
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 1
    Subjects:
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Grouting
        Type: general
      – SubjectFull: Excavation (Civil engineering)
        Type: general
      – SubjectFull: Soil-structure interaction
        Type: general
      – SubjectFull: Simulation methods & models
        Type: general
      – SubjectFull: Tunnel design & construction
        Type: general
      – SubjectFull: Land subsidence
        Type: general
      – SubjectFull: Computer simulation
        Type: general
    Titles:
      – TitleFull: Simplified Finite-Element Modeling of TBM Advancement: A Novel Computational Approach.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Zaiter, Hadia
      – PersonEntity:
          Name:
            NameFull: Mroueh, Hussein
      – PersonEntity:
          Name:
            NameFull: Bourgeois, Emmanuel
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 15323641
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              Value: 26
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              Value: 6
          Titles:
            – TitleFull: International Journal of Geomechanics
              Type: main
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