Abstract
Design and construction of geosynhetic reinforced pile-supported embankments over soft foundation soils is a challenging task due to undesirable characteristics of soft soils such as excessive settlements and low bearing capacity. When the time constraints of projects are also an important factor to be considered in addition to difficult ground conditions, geosynthetic reinforced pile-supported (GRPS) embankments are considered as the most suitable and reliable solution. Various researchers have introduced methods to design GRPS embankments based on different load transfer mechanisms. However, among design engineers, there is uncertainty regarding the applicability of these design methods. This paper investigates the load transfer mechanism of GRPS embankments and currently available design methods in predicting embankment behaviour using finite element modelling. The comparison of design methods was carried out using the stress reduction ratio considering different pile diameters and spacing, and embankment heights, which govern the currently available design approaches. Based on these model results, the inconsistencies in currently available design methods are identified and discussed in detail.
| Original language | English |
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| Title of host publication | ICCEA 2019 Conference Proceedings, 25th and 26th July 2019, Department of Civil Engineering, University of Moratuwa, Moratuwa, Sri Lanka |
| Publisher | University of Moratuwa |
| Number of pages | 9 |
| Publication status | Published - 2019 |
| Event | International Conference on Civil Engineering and Applications - Duration: 1 Jan 2019 → … |
Conference
| Conference | International Conference on Civil Engineering and Applications |
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| Period | 1/01/19 → … |
Keywords
- embankments
- design and construction
- clay