Abstract
Embankment construction over soft ground is a challenge due to low bearing capacity and excessive settlement characteristics associated with soft soils. Pile-supported embankments provide an effective and reliable solution by distributing a significant proportion of embankment load to piles, reducing the load transferred to the underlying soft soil. With the combination of geosynthetic reinforcement layers, the load transfer can be made more efficient and the total and differential settlements at the crest of the embankment can be reduced. This paper presents a numerical study, based on the finite element method, of an embankment which is not originally pile-supported. The numerical analysis is first carried out on the embankment without the pile supports and then the behaviour of the embankment is analysed again including the pile supports. Furthermore, a geosynthetic layer is then added at the base of the same embankment with pile supports and the embankment behaviour is investigated. The increments in excess pore water pressures, settlements in the soft soil foundation layer and stresses transferred to the soft soil are compared for each case. With the results obtained, the benefits of adding pile supports and geosynthetic reinforcement to embankments constructed on soft ground are highlighted.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International Conference on Advances in Geotechnical Engineering (ICAGE 2011), 7-9 November 2011, Perth, Australia |
| Publisher | Curtin University |
| Pages | 587-592 |
| Number of pages | 6 |
| ISBN (Print) | 9780646551425 |
| Publication status | Published - 2011 |
| Event | International Conference on Advances in Geotechnical Engineering - Duration: 7 Nov 2011 → … |
Conference
| Conference | International Conference on Advances in Geotechnical Engineering |
|---|---|
| Period | 7/11/11 → … |