Abstract
Geosynthetic-reinforced slopes have the advantages of easy construction, low construction cost, short construction period, better deformation tolerance, earthwork amount balance and good seismic resistance ability. Therefore, a great number of geosynthetic-reinforced slopes have been used to improve the slope stability in Taiwan. However, during the Taiwan 921 Chi-Chi earthquake, some geosynthetic-reinforced slopes were destroyed. In order to understand the performance of the seismic behavior of the geosynthetic-reinforced slope affected by the earthquake, this study set an earthquake monitoring system to record actual seismic data of a geosynthetic-reinforced slope built in FoGuang University, Taiwan. The monitoring system adopts newly developed seismic instruments which have the advantages of: a variety of seismic interpretation schemes, easy to use, low cost, high temperature resistance, and waterproof. In fact, it is similar to, but different from the traditional earthquake monitoring system with seismic instruments setting in structure. The recorded seismic data can be further used to verify the dynamic simulation analysis to confirm the seismic response of geosynthetic-reinforced slopes under different magnitude scale earthquakes. It is hopeful that this study can provide earthquake resistance information for geotechnical engineers during the design phase.
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