期刊
INTERNATIONAL JOURNAL OF PHYSICAL MODELLING IN GEOTECHNICS
卷 22, 期 2, 页码 55-69出版社
ICE PUBLISHING
DOI: 10.1680/jphmg.20.00007
关键词
deformation; design methods & aids; geosynthetics
资金
- FEDER funds through the programme COMPETE - Programa Operacional Factores de Competitividade
- FCT - Fundacao para a Ciencia e a Tecnologia [UIDB/00102/2020, UIDB/00285/2020]
- Fundação para a Ciência e a Tecnologia [UIDB/00102/2020] Funding Source: FCT
This paper presents an accurate prediction method for the deformation of retaining walls reinforced with geosynthetics using laboratory-scale physical models. The proposed method is shown to provide reliable results when compared with physical measurements.
Reinforcement of earth retaining walls dates back to antiquity, although a considerable evolution has occurred over the past decades. Reinforcement materials have evolved from natural to metal and finally to geosynthetic materials. These materials are extensible and the reinforcement effect develops through the soil-reinforcement interface, which is dependent on the deformation of the wall, the soil and the reinforcing elements. It is important to control deformation in order to avoid functional and structural problems. This paper contributes to the accurate prediction of the deformation of retaining walls reinforced with geosynthetics using data from laboratory-scale physical models. The feasibility of a simple method to calculate the deformation of the face and earth pressures is evaluated from the data of reduced-scale model walls previously tested in a laboratory: a brick-faced wall and a more flexible geotextile-wrapped wall. The calculated horizontal deformation of the face compares well with the physical measurements and, therefore, the proposed method can be taken as a valid and expedited tool to predict the deformation of retaining walls reinforced with geosynthetics.
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