Limits of the Convergence-Confinement method for deep tunnels in weak rock masses: Comparison with axisymmetric modelling
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| Názov: | Limits of the Convergence-Confinement method for deep tunnels in weak rock masses: Comparison with axisymmetric modelling |
|---|---|
| Autori: | Fenneteau, B., Deck, O., Mehdizadeh, Rasool, Laigle, F. |
| Prispievatelia: | Fenneteau, Baptiste |
| Zdroj: | Tunnelling into a Sustainable Future – Methods and Technologies ISBN: 9781003559047 |
| Informácie o vydavateľovi: | Informa UK Limited, 2025. |
| Rok vydania: | 2025 |
| Predmety: | [SPI.GCIV.GEOTECH] Engineering Sciences [physics]/Civil Engineering/Géotechnique, [SPI.GCIV] Engineering Sciences [physics]/Civil Engineering |
| Popis: | This paper investigates the shortcomings of the convergence-confinement method, when used for deep tunnels in weak rock masses. Axisymmetric numerical calculations are performed to evaluate the ground pressure on supports as a function of the distance to the face, the stiffness of the support and the mechanical properties of the ground. A comparison with the traditional convergence-confinement method (CV-CF) is provided to demonstrate the underestimation of the ground pressure on the support calculated with the CV-CF method. However, this shortcoming is not clearly identified when the CV-CF method is used at the preliminary design stages of projects. This paper investigates the assumption that these discrepancies for classical tunnelling situations are compensated by the use of safety factors, which are typically applied alongside the CV-CF method. The obtained results show that the safety factors compensate the discrepancies only for classical tunneling situations with small radial deformation. |
| Druh dokumentu: | Part of book or chapter of book Conference object |
| Popis súboru: | application/pdf |
| Jazyk: | English |
| DOI: | 10.1201/9781003559047-271 |
| Prístupová URL adresa: | https://hal.science/hal-05185317v1/document https://doi.org/10.1201/9781003559047-271 https://hal.science/hal-05185317v1 |
| Rights: | CC BY NC ND |
| Prístupové číslo: | edsair.doi.dedup.....45a973174ba2401df42c6b44d0d23b64 |
| Databáza: | OpenAIRE |
| FullText | Text: Availability: 0 CustomLinks: – Url: https://explore.openaire.eu/search/publication?articleId=doi_dedup___%3A%3A45a973174ba2401df42c6b44d0d23b64 Name: EDS - OpenAIRE (s4221598) Category: fullText Text: View record at OpenAIRE – Url: https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=EBSCO&SrcAuth=EBSCO&DestApp=WOS&ServiceName=TransferToWoS&DestLinkType=GeneralSearchSummary&Func=Links&author=Fenneteau%20B Name: ISI Category: fullText Text: Nájsť tento článok vo Web of Science Icon: https://imagesrvr.epnet.com/ls/20docs.gif MouseOverText: Nájsť tento článok vo Web of Science |
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| Items | – Name: Title Label: Title Group: Ti Data: Limits of the Convergence-Confinement method for deep tunnels in weak rock masses: Comparison with axisymmetric modelling – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Fenneteau%2C+B%2E%22">Fenneteau, B.</searchLink><br /><searchLink fieldCode="AR" term="%22Deck%2C+O%2E%22">Deck, O.</searchLink><br /><searchLink fieldCode="AR" term="%22Mehdizadeh%2C+Rasool%22">Mehdizadeh, Rasool</searchLink><br /><searchLink fieldCode="AR" term="%22Laigle%2C+F%2E%22">Laigle, F.</searchLink> – Name: Author Label: Contributors Group: Au Data: Fenneteau, Baptiste – Name: TitleSource Label: Source Group: Src Data: Tunnelling into a Sustainable Future – Methods and Technologies ISBN: 9781003559047 – Name: Publisher Label: Publisher Information Group: PubInfo Data: Informa UK Limited, 2025. – Name: DatePubCY Label: Publication Year Group: Date Data: 2025 – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22[SPI%2EGCIV%2EGEOTECH]+Engineering+Sciences+[physics]%2FCivil+Engineering%2FGéotechnique%22">[SPI.GCIV.GEOTECH] Engineering Sciences [physics]/Civil Engineering/Géotechnique</searchLink><br /><searchLink fieldCode="DE" term="%22[SPI%2EGCIV]+Engineering+Sciences+[physics]%2FCivil+Engineering%22">[SPI.GCIV] Engineering Sciences [physics]/Civil Engineering</searchLink> – Name: Abstract Label: Description Group: Ab Data: This paper investigates the shortcomings of the convergence-confinement method, when used for deep tunnels in weak rock masses. Axisymmetric numerical calculations are performed to evaluate the ground pressure on supports as a function of the distance to the face, the stiffness of the support and the mechanical properties of the ground. A comparison with the traditional convergence-confinement method (CV-CF) is provided to demonstrate the underestimation of the ground pressure on the support calculated with the CV-CF method. However, this shortcoming is not clearly identified when the CV-CF method is used at the preliminary design stages of projects. This paper investigates the assumption that these discrepancies for classical tunnelling situations are compensated by the use of safety factors, which are typically applied alongside the CV-CF method. The obtained results show that the safety factors compensate the discrepancies only for classical tunneling situations with small radial deformation. – Name: TypeDocument Label: Document Type Group: TypDoc Data: Part of book or chapter of book<br />Conference object – Name: Format Label: File Description Group: SrcInfo Data: application/pdf – Name: Language Label: Language Group: Lang Data: English – Name: DOI Label: DOI Group: ID Data: 10.1201/9781003559047-271 – Name: URL Label: Access URL Group: URL Data: <link linkTarget="URL" linkTerm="https://hal.science/hal-05185317v1/document" linkWindow="_blank">https://hal.science/hal-05185317v1/document</link><br /><link linkTarget="URL" linkTerm="https://doi.org/10.1201/9781003559047-271" linkWindow="_blank">https://doi.org/10.1201/9781003559047-271</link><br /><link linkTarget="URL" linkTerm="https://hal.science/hal-05185317v1" linkWindow="_blank">https://hal.science/hal-05185317v1</link> – Name: Copyright Label: Rights Group: Cpyrght Data: CC BY NC ND – Name: AN Label: Accession Number Group: ID Data: edsair.doi.dedup.....45a973174ba2401df42c6b44d0d23b64 |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1201/9781003559047-271 Languages: – Text: English Subjects: – SubjectFull: [SPI.GCIV.GEOTECH] Engineering Sciences [physics]/Civil Engineering/Géotechnique Type: general – SubjectFull: [SPI.GCIV] Engineering Sciences [physics]/Civil Engineering Type: general Titles: – TitleFull: Limits of the Convergence-Confinement method for deep tunnels in weak rock masses: Comparison with axisymmetric modelling Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Fenneteau, B. – PersonEntity: Name: NameFull: Deck, O. – PersonEntity: Name: NameFull: Mehdizadeh, Rasool – PersonEntity: Name: NameFull: Laigle, F. – PersonEntity: Name: NameFull: Fenneteau, Baptiste IsPartOfRelationships: – BibEntity: Dates: – D: 08 M: 05 Type: published Y: 2025 Identifiers: – Type: issn-locals Value: edsair – Type: issn-locals Value: edsairFT |
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