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Creep analysis of an earth embankment on soft soil deposit with and without PVD improvement
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Rezania, Mohammad, Bagheri, Meghdad, Mousavi Nezhad, Mohaddeseh and Sivasithamparam, Nallathamby (2017) Creep analysis of an earth embankment on soft soil deposit with and without PVD improvement. Geotextiles and Geomembranes, 45 (5). pp. 537-547. doi:10.1016/j.geotexmem.2017.07.004
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Official URL: https://doi.org/10.1016/j.geotexmem.2017.07.004
Abstract
In this paper, an anisotropic creep constitutive model, namely Creep-SCLAY1S is employed 10 to study the installation effects of prefabricated vertical drains (PVDs) on the behavior of a full
11 scale test embankment, namely Haarajoki embankment in Finland. The embankment was 12 constructed on a natural soft soil with PVD installed to improve the drainage under one half of 13 it. The Creep constitutive model used in this study, incorporates the effects of fabric
14 anisotropy, structure and time within a critical state based framework. For comparison, the 15 isotropic modified Cam clay (MCC) model and the rate-independent anisotropic S-CLAY1S 16 model are also used for the analyses. The numerical predictions are compared with field 17 measurements and the results indicate that the creep model provides an improved 18 approximation of field settlements, and excess pore pressure build-up and dissipations. In 19 addition, the application of two commonly used permeability matching techniques for two 20 dimensional (2D) plane-strain analysis of the PVD problem is studied and the results are 21 discussed highlighting their limitations and advantages.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Soil mechanics, Soil stabilization, Soil consolidation, Vertical drains | ||||||||
| Journal or Publication Title: | Geotextiles and Geomembranes | ||||||||
| Publisher: | Elsevier | ||||||||
| ISSN: | 0266-1144 | ||||||||
| Official Date: | October 2017 | ||||||||
| Dates: |
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| Date of first compliant deposit: | 11 July 2017 | ||||||||
| Volume: | 45 | ||||||||
| Number: | 5 | ||||||||
| Page Range: | pp. 537-547 | ||||||||
| DOI: | 10.1016/j.geotexmem.2017.07.004 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
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