Numerical investigation on rigid and flexible pipelines embedded in granular and self-compacting materials

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dc.identifier.uri http://dx.doi.org/10.15488/10949
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/11031
dc.contributor.author Abdel-Rahman, Khalid
dc.contributor.author Gerlach, Tim
dc.contributor.author Achmus, Martin
dc.date.accessioned 2021-05-18T09:29:23Z
dc.date.available 2021-05-18T09:29:23Z
dc.date.issued 2020
dc.identifier.citation Abdel-Rahman, K.; Gerlach, T.; Achmus, M.: Numerical investigation on rigid and flexible pipelines embedded in granular and self-compacting materials. In: Innovative Infrastructure Solutions 5 (2020), Nr. 3, 69. DOI: https://doi.org/10.1007/s41062-020-00320-z
dc.description.abstract Self-compacting filling material or controlled low-strength material (CLSM) is a cementitious material which is liquid during filling, and it is used primarily as backfill, e.g., in trenches. Several products are currently used as CLSM such as flowable fill, controlled density fill, flowable mortar and low-strength plastic soil–cement. The low-strength requirement is necessary to allow for future excavation of CLSM. A two-dimensional numerical model was developed using the finite element system ABAQUS. In this model, the material behavior of granular soil and CLSM is described using an elasto-plastic constitutive model with Mohr–Coulomb failure criterion. Rigid and flexible pipes were modeled once embedded in sandy soil and once embedded in self-compacting material. The numerical model allows the modeling of the effect of hardening process on the overall behavior of the pipe–soil system. The main objective of this study is to investigate the behavior of rigid and flexible pipelines embedded in CLSM as a filling material numerically and to show advantages and disadvantages in comparison with the presently widely used filling materials like sand. © 2020, The Author(s). eng
dc.language.iso eng
dc.publisher Cham : Springer International Publishing
dc.relation.ispartofseries Innovative Infrastructure Solutions 5 (2020), Nr. 3
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Finite element method eng
dc.subject Hardening process eng
dc.subject Mohr–Coulomb material model eng
dc.subject Pipelines eng
dc.subject Self-compacting material (CLSM) eng
dc.subject.ddc 550 | Geowissenschaften ger
dc.subject.ddc 620 | Ingenieurwissenschaften und Maschinenbau ger
dc.title Numerical investigation on rigid and flexible pipelines embedded in granular and self-compacting materials
dc.type article
dc.type Text
dc.relation.essn 2364-4184
dc.relation.issn 2364-4176
dc.relation.doi https://doi.org/10.1007/s41062-020-00320-z
dc.bibliographicCitation.issue 3
dc.bibliographicCitation.volume 5
dc.bibliographicCitation.firstPage 69
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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