Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)
- Volume 7 Issue 2
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- Pages.41-47
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- 2008
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- 2508-2876(pISSN)
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- 2287-9528(eISSN)
Wall Displacement of Geosynthetic Reinforced Soil Walls with Different Surcharge Loads - Model Test
상재하중 변화에 따른 토목섬유 보강토옹벽의 벽체변위
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Lee, Kwang-Wu
(Earth Structure & Foundation Engineering Research Division, KICT) ;
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Cho, Sam-Deok
(Earth Structure & Foundation Engineering Research Division, KICT)
- Received : 2008.06.02
- Accepted : 2008.06.20
- Published : 2008.06.30
Abstract
This paper describes the results of model experiments in the laboratory, which were conducted to assess the behavior characteristics of geosynthetic reinforced soil walls according to different surcharge loads and reinforcement types. The model walls were built in the box having dimension, 100 cm tall, 140 cm long, and 100cm wide. Three types of geosynthetics, geonet, geogrid A and geogrid B, are used as the reinforcements. Decomposed granite soil (SM) was used as a backfill material. Seven model walls are constructed and tested. After the construction of the model wall, the LVDTs are installed to obtain the displacements of the wall face. As the results of the model tests, the maximum horizontal displacements of the model walls occurred due to uniform surcharge pressure were measured at the 0.7H from the bottom of the wall. The more the reinforcement strength increases, the more the wall displacements decrease, and also the reduction ratio of the wall displacement decrease with increasing the surcharge pressure.
본 연구에서는 보강토옹벽 상부에 재하된 상재하중 및 보강재 종류의 변화에 따른 토목섬유 보강토옹벽의 벽체 변위 특성을 평가하기 위하여 일련의 모형실험을 수행하였다. 모형 보강토옹벽은 높이