Reference : Near field wave transformation in clay and peat
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/10993/14976
Near field wave transformation in clay and peat
English
Van Baars, Stefan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
May-2010
Fifth international conference on recent advances in geotechnical earthquake and soil dynamics, San Diego
Yes
International
1-8870009-15-9
Fifth international conference on recent advances in geotechnical earthquake and soil dynamics, San Diego
may 2010
[en] A series of simple impact tests is performed, both on clay and on peat, in order to compare the current wave theory with the obtained
data. The waves at the surface are measured with three 3D geophones. With this the wave propagation and the energy dissipation in
three directions has been studied both for clay and peat. Since the impact produces a group of waves, only the first arrival time can
easily be detected. By transferring the wave information into a 3D energy flow, also the average arrival time and the end-of-wave
arrival time can be determined. The results of all tests are very similar, the short wave group splits up in three phases: the first phase
consists of compression waves, in the second phase the Rayleigh waves dominate and in the last phase, remarkably, a kind of diagonal
Love waves dominate. The second phase starts with a sudden flip of the particle motion due to the arrival of the second wave. In clay
78% of the energy is found in the second phase, while in peat 72% of the energy is found in the third phase.
http://hdl.handle.net/10993/14976

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