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A comparison of models for shotcrete in dynamically loaded rock tunnels
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0002-9609-4122
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Concrete Structures.ORCID iD: 0000-0001-8336-1247
2010 (English)In: Shotcrete: Elements of a System, Informa UK Limited , 2010, p. 11-20Chapter in book (Other academic)
Abstract [en]

During blasting in tunnels and mines, the shotcrete-rock interaction is influenced by propagating stress waves. Shotcrete support in hard rock tunnels is here studied through numerical analysis and comparisons with previous numerical results, measurements and observations in situ. The stress response in the shotcrete closest to the rock when exposed to P-waves striking perpendicularly to the shotcrete-rock interface is simulated. The first model tested is an elastic stress wave model, which is onedimensional with the shotcrete assumed linearly elastic. The second is a structural dynamic model that consists of masses and spring elements. The third model is a finite element model implemented using the Abaqus/Explicit program. Two methods are used for the application of incident disturbing stress waves: as boundary conditions and as inertia loads. Results from these three types of models are compared and evaluated as a first step before a future extension to more detailed analyses using 3D models. 

Place, publisher, year, edition, pages
Informa UK Limited , 2010. p. 11-20
National Category
Infrastructure Engineering
Identifiers
URN: urn:nbn:se:kth:diva-326680DOI: 10.1201/b10545-4Scopus ID: 2-s2.0-85135728601OAI: oai:DiVA.org:kth-326680DiVA, id: diva2:1755785
Note

Part of book: ISBN 9780203849378

QC 20230509

Available from: 2023-05-09 Created: 2023-05-09 Last updated: 2024-01-10Bibliographically approved

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Ahmed, LamisAnsell, Anders

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  • apa
  • ieee
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  • Other style
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  • de-DE
  • en-GB
  • en-US
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  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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  • text
  • asciidoc
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