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A platform for research: civil engineering, architecture and urbanism
Simulation of 12 High Geosynthetic Reinforced Retaining Walls under Surcharge Loading by Centrifuge Testing
Total of 13 centrifuge model tests on geosynthetic reinforced retaining walls were conducted. These tests were designed to determine the effects of backfill type, reinforcement shape (length), and degree of saturation on displacement and mode of failure under surcharge loading. The backfill types are sand, silty clay, recycled asphat, and sand-clay materials. Material analysis for the sand and clay soils is obtained. Only one centrifuge test showed signs of a catastrophic failure so it was hard to draw general conclusions on the failure performance of other tests. It was found that drained backfill reinforced with trapezoidal shapted reinforcement (truncated base) functions equally as well as the rectangle shaped. The use of sand as a backfill material increases the stability of the wall. Yet if 5 psi is the anticipated surcharge pressure for field walls, the results for other types of backfill showed adequate factor of safety. The adverse effect of increasing saturation is more significant in the silty-clay backfill than in the sandy backfill.
Simulation of 12 High Geosynthetic Reinforced Retaining Walls under Surcharge Loading by Centrifuge Testing
Total of 13 centrifuge model tests on geosynthetic reinforced retaining walls were conducted. These tests were designed to determine the effects of backfill type, reinforcement shape (length), and degree of saturation on displacement and mode of failure under surcharge loading. The backfill types are sand, silty clay, recycled asphat, and sand-clay materials. Material analysis for the sand and clay soils is obtained. Only one centrifuge test showed signs of a catastrophic failure so it was hard to draw general conclusions on the failure performance of other tests. It was found that drained backfill reinforced with trapezoidal shapted reinforcement (truncated base) functions equally as well as the rectangle shaped. The use of sand as a backfill material increases the stability of the wall. Yet if 5 psi is the anticipated surcharge pressure for field walls, the results for other types of backfill showed adequate factor of safety. The adverse effect of increasing saturation is more significant in the silty-clay backfill than in the sandy backfill.
Simulation of 12 High Geosynthetic Reinforced Retaining Walls under Surcharge Loading by Centrifuge Testing
J. M. Klamerus (author) / H. Y. Ko (author)
1998
108 pages
Report
No indication
English
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