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Date
2006Type
- Conference Paper
ETH Bibliography
yes
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Abstract
Rockfall impact energies can reach magnitudes of the order of millions of Joules, requiring understanding of the energy absorption mechanisms at high energy levels for improved design of the protection gallery. These high-energy ranges can be achieved at the laboratory scale with the help of a geotechnical centrifuge. In centrifuge, rockfall protection galleries are studied with an aim to optimise the design procedure by using a cushion material. Different cushion materials have been modelled against vertical and inclined impacts of steel block with input energy levels up to 20 MJ.A simple FE model (LS-DYNA) is used in addition to model the boulder impact on different cushion materials. The results from the centrifuge tests in terms of acceleration values of the boulder and deflection of the slab are discussed and a new design procedure for the protection galleries based on the centrifuge and numerical investigations has been proposed. © 2006 Taylor & Francis Group, London. Show more
Publication status
publishedBook title
Physical Modelling in GeotechnicsJournal / series
Balkema - Proceedings and Monographs in Engineering, Water and Earth SciencesVolume
Pages / Article No.
Publisher
Taylor & FrancisEvent
Organisational unit
03474 - Springman, Sarah M. (ehemalig) / Springman, Sarah M. (former)
02607 - Institut für Geotechnik / Institute for Geotechnical Engineering
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ETH Bibliography
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