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- Title
Three-dimensional finite element modelling of a full-scale geosynthetic-reinforced, pile-supported embankment.
- Authors
Rowe, R. Kerry; Liu, K.-W.
- Abstract
The performance of four sections of a full-scale embankment constructed on soft soil is examined using a fully coupled and fully three-dimensional finite element analysis. The four sections had similar embankment loadings but different improvement options (one unimproved, one with pile-support only, one with a single layer geotextile-reinforced platform and pile-support, and one with two layers of geogrid-reinforced platform and pile-support). Like the field data, the numerical results show that the inclusion of piles decreases the settlement at the subsoil surface to 52% of that for the unimproved section, and the addition of a single layer of geotextile reinforcement ( J = 800 kN/m) further reduced settlement to only 31% of that of the unimproved section. The effects of geosynthetic reinforcement and multiple layers of reinforcement on the performance of the pile-supported embankment are discussed. The relative load transfer is calculated using eight existing methods and they are compared with the field measurements and numerical results.
- Subjects
FINITE element method; GEOSYNTHETICS; EMBANKMENTS; GEOTEXTILES; NUMERICAL analysis
- Publication
Canadian Geotechnical Journal, 2015, Vol 52, Issue 12, p2041
- ISSN
0008-3674
- Publication type
Article
- DOI
10.1139/cgj-2014-0506