Abstract
In the south bank of the Tagus River, in the Lisbon harbor, it was
necessary to create a large raw mineral storage area for a steel plant adjacent to it, as well as a new quay for discharge of those materials, some years ago. The occurring formations in the area included very soft soils layers, up to 17 m thick. The inherent geotechnical problems to the development were of two types: those
soils did not have enough strength to support a walking man, least the storage piles, without a substantial improvement of their strength; and the equipment used, on rail, to move the raw minerals could not be submitted to differential settlements greater than 15 cm, over 500 m. The total area of the storage facility to improve was 25 ha. This paper introduces the comparison between the mon-
itoring data of the experimental embankment built on top of the soil improved area by PVD with a recent 3D modelling of the stresses evolution. A special attention is given to the behavior, under loading, of the soft soils foundation, especially by comparing it with the first results of the trial embankment.
necessary to create a large raw mineral storage area for a steel plant adjacent to it, as well as a new quay for discharge of those materials, some years ago. The occurring formations in the area included very soft soils layers, up to 17 m thick. The inherent geotechnical problems to the development were of two types: those
soils did not have enough strength to support a walking man, least the storage piles, without a substantial improvement of their strength; and the equipment used, on rail, to move the raw minerals could not be submitted to differential settlements greater than 15 cm, over 500 m. The total area of the storage facility to improve was 25 ha. This paper introduces the comparison between the mon-
itoring data of the experimental embankment built on top of the soil improved area by PVD with a recent 3D modelling of the stresses evolution. A special attention is given to the behavior, under loading, of the soft soils foundation, especially by comparing it with the first results of the trial embankment.
| Original language | English |
|---|---|
| Title of host publication | New Developments in Materials for Infrastructure Sustainability and the Contemporary Issues in Geo-environmental Engineering. GeoChina 2018 |
| Editors | S. Shu, L. He, Y. Kai |
| Place of Publication | Cham |
| Publisher | Springer International Publishing AG |
| Pages | 191-203 |
| Number of pages | 13 |
| ISBN (Electronic) | 978-3-319-95774-6 |
| ISBN (Print) | 978-3-319-95773-9 |
| DOIs | |
| Publication status | Published - 18 Jul 2018 |
| Event | 5th GeoChina International Conference 2018 - HangZhou, China Duration: 23 Jul 2018 → 25 Jul 2018 Conference number: 5th |
Publication series
| Name | Sustainable Civil Infrastructures |
|---|---|
| Publisher | Springer Nature |
| ISSN (Print) | 2366-3405 |
| ISSN (Electronic) | 2366-3413 |
Conference
| Conference | 5th GeoChina International Conference 2018 |
|---|---|
| Country/Territory | China |
| City | HangZhou |
| Period | 23/07/18 → 25/07/18 |
Keywords
- Asaoka Method
- Experimental Embankment
- Prefabricated Vertical Drains (PVD)
- Soft Soil
- Trial Embankment
