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Seismic Response of Reinforced Steep Soil Slopes: Results of a Shaking Table Study
A series of shaking table tests were performed at the University of Washington as part of a larger investigation of the seismic response of geosynthetic reinforced soil (GRS) slopes. The model slopes, 4 ft in height, were constructed with a wrapped faced at a slope of 63°. All were designed to have a static factor of safety of 1.0. The models were subjected to a sinusoidal frequency of 5 Hz on the shaking table. Model characteristics such as embedment length to slope height ratio (L/H) and geosynthetic spacing were varied in the testing program. Backfill settlement, significant lateral and vertical shearing in the reinforced zone, and development of a graben type failure wedge in the backfill behind the zone of reinforcement were observed. Test results indicated that as the L/H ratio and reinforcement strength increased and the reinforcement spacing decreased, the yield acceleration for the slope increased. A definite bi-linear failure surface was observed in all slopes. The results of the study indicate that GRS slopes are very safe in terms of their seismic resistance.
Seismic Response of Reinforced Steep Soil Slopes: Results of a Shaking Table Study
A series of shaking table tests were performed at the University of Washington as part of a larger investigation of the seismic response of geosynthetic reinforced soil (GRS) slopes. The model slopes, 4 ft in height, were constructed with a wrapped faced at a slope of 63°. All were designed to have a static factor of safety of 1.0. The models were subjected to a sinusoidal frequency of 5 Hz on the shaking table. Model characteristics such as embedment length to slope height ratio (L/H) and geosynthetic spacing were varied in the testing program. Backfill settlement, significant lateral and vertical shearing in the reinforced zone, and development of a graben type failure wedge in the backfill behind the zone of reinforcement were observed. Test results indicated that as the L/H ratio and reinforcement strength increased and the reinforcement spacing decreased, the yield acceleration for the slope increased. A definite bi-linear failure surface was observed in all slopes. The results of the study indicate that GRS slopes are very safe in terms of their seismic resistance.
Seismic Response of Reinforced Steep Soil Slopes: Results of a Shaking Table Study
Perez, A. (author) / Holtz, R. D. (author)
GeoTrans 2004 ; 2004 ; Los Angeles, California, United States
2004-07-21
Conference paper
Electronic Resource
English
Seismic Response of Reinforced Steep Soil Slopes: Results of a Shaking Table Study
| British Library Conference Proceedings | 2004
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