Effect of the umbrella arch technique modelled as a homogenized area above a cross passage
| dc.contributor.author | Siad, Ibtissem | |
| dc.contributor.author | Akchiche, Mustapha | |
| dc.contributor.author | Spyridis, Panagiotis | |
| dc.date.accessioned | 2023-03-03T09:51:54Z | |
| dc.date.available | 2023-03-03T09:51:54Z | |
| dc.date.issued | 2023-01-26 | |
| dc.description.abstract | The stability of tunnel cross passages excavated in soft soil has always been a major challenge. In recent years, new techniques based on the installation of pre-reinforcements before tunnel excavation have been developed to control excavation-induced deformation and surface settlements. In this paper, a finite element numerical simulation was conducted to study the reduction effect of an umbrella vault element modelled as a homogenized area on the deformations induced after the excavation of a cross passage. The results of this study show that the ground deformations can be controlled efficiently by using this type of pre-reinforcement. However, the findings showed that there is no effect of the umbrella arch length on the reduction of the ground deformations. This paper represents a very good demonstration of 3D modelling of tunnel junctions using pre-support techniques; it is the most advanced/appropriate research tool for studying the behaviour of cross passages and is useful as a paradigm for other researchers and practitioners. | en |
| dc.identifier.uri | http://hdl.handle.net/2003/41280 | |
| dc.identifier.uri | http://dx.doi.org/10.17877/DE290R-23122 | |
| dc.language.iso | en | de |
| dc.relation.ispartofseries | Applied Sciences;13(3) | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Cross passage | en |
| dc.subject | Numerical modelling | en |
| dc.subject | Ground surface settlement | en |
| dc.subject | Umbrella arch technique | en |
| dc.subject | Homogenization technique | en |
| dc.subject.ddc | 690 | |
| dc.subject.ddc | 720 | |
| dc.subject.rswk | Tunnelbau | de |
| dc.subject.rswk | Verkehrsknotenpunkt | de |
| dc.subject.rswk | Setzung | de |
| dc.subject.rswk | Numerisches Verfahren | de |
| dc.subject.rswk | Finite-Elemente-Methode | de |
| dc.subject.rswk | Dreidimensionales Modell | de |
| dc.title | Effect of the umbrella arch technique modelled as a homogenized area above a cross passage | en |
| dc.type | Text | de |
| dc.type.publicationtype | article | de |
| dcterms.accessRights | open access | |
| eldorado.secondarypublication | true | de |
| eldorado.secondarypublication.primarycitation | Siad, I.; Akchiche, M.; Spyridis, P. Effect of the Umbrella Arch Technique Modelled as a Homogenized Area above a Cross Passage. Appl. Sci. 2023, 13, 1588. https://doi.org/10.3390/app13031588 | de |
| eldorado.secondarypublication.primaryidentifier | DOI https://doi.org/10.3390/app13031588 | de |