Shake Table Tests to Measure the Dynamic Performance of Geotextile-reinforced Embankment

  • Ayşe Edinçliler Bogazici University, Kandilli Observatory and Earthquake Research Institute, Department of Earthquake Engineering, Istanbul, Turkey
  • Yasin S. Toksoy Bogazici University, Kandilli Observatory and Earthquake Research Institute, Department of Earthquake Engineering, Istanbul, Turkey

Abstract

Using geosynthetics in highway embankments can reduce theimpact of hazardous earthquakes by transmitting less excitationto improve the seismic performance. This study uses a 1-greduced scale (1/50) approach and subjects the model embankmentto an earthquake time history as well as several levelsof uniform cyclic loading. The main focus of comparison isbetween an unreinforced embankment and a one, reinforcedwith two levels of geosynthetics material. Results reveal thatgeotextile reinforced highway embankment models performmuch better under the applied motions. Larger amplitudes causemore severe deformations as a result of the increased dynamicloads. It is also revealed that the effectiveness of the geosyntheticsis dominated by the seismic frequency. Deamplificationis observed within the geotextile reinforced embankment but thedegree of deamplification is highly depended on the predominantfrequency of the dynamic load.

Keywords

Reinforced highway embankment, seismic performance, shake table experiment, dynamic motion, earthquake, geotextile reinforcement
Published
03-05-2017
How to Cite
EDINÇLILER, Ayşe; TOKSOY, Yasin S.. Shake Table Tests to Measure the Dynamic Performance of Geotextile-reinforced Embankment. Periodica Polytechnica Civil Engineering, [S.l.], may 2017. ISSN 1587-3773. Available at: <https://pp.bme.hu/ci/article/view/10540>. Date accessed: 24 sep. 2017. doi: https://doi.org/10.3311/PPci.10540.
Section
Research Article