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Rockfall impact on protection galleries
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.ORCID iD: 0000-0003-1935-1743
Institute for Geotechnical Engineering, Eidgenossische Technische Hochschule Zurich.
2004 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Rockfalls are one of the most prevailing natural hazards in the mountainous regions in Switzer- land. Concrete protection galleries are used to protect the local infrastructure and lifelines against these poten- tial rock impacts. Cushion materials are laid on these galleries to absorb the rockfall impact energy, which is one of the main input parameters in the design of the protection gallery. An attempt has been made to reduce the impact energies by placing a better damping material on the gallery. The high rock impact energy ranges are difficult to model at the laboratory scale. Field tests are generally avoided due to the high costs involved and also due to the singularity of the potential tests. The prototype energy levels can be achieved at the labo- ratory scale with the help of a geotechnical centrifuge. An instrumented model of the protection gallery is ro- tated under high g levels, thereby increasing the unit weight of the material. With the help of appropriate scal- ing laws, the prototype energy levels can be achieved. This paper focuses on the determination of the impact force of a rockfall of a specific energy and the forces induced in the gallery. The maximum acceleration val- ues of the rock and deflection of the galleries are compared for different energy ranges and cushion materials. The test results are later compared with numerical modelling using the finite element program LS-DYNA. Rockfall impact on protection galleries | Request PDF. Available from: https://www.researchgate.net/publication/242415233_Rockfall_impact_on_protection_galleries [accessed Aug 20 2018].

Place, publisher, year, edition, pages
Leiden: Balkema, 2004. p. 1139-1144
National Category
Geotechnical Engineering
Research subject
Soil Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-70499ISBN: 9058095681 (print)OAI: oai:DiVA.org:ltu-70499DiVA, id: diva2:1240165
Conference
2nd International Conference on Structural engineering, mechanics and computation, 2004, Cape Town, South Africa, 5-7 July 2004
Available from: 2018-08-20 Created: 2018-08-20 Last updated: 2018-08-20Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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  • vancouver
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More styles
Language
  • de-DE
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  • nn-NB
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  • Other locale
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Output format
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  • asciidoc
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