Soils Improvement by PVD in a Harbor Storage Area

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)


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.
Original languageEnglish
Title of host publicationNew 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 PublicationCham
PublisherSpringer International Publishing AG
Number of pages13
ISBN (Electronic)978-3-319-95774-6
ISBN (Print)978-3-319-95773-9
Publication statusPublished - 18 Jul 2018
Event5th GeoChina International Conference 2018 - HangZhou, China
Duration: 23 Jul 201825 Jul 2018
Conference number: 5th

Publication series

NameSustainable Civil Infrastructures
PublisherSpringer Nature
ISSN (Print)2366-3405
ISSN (Electronic)2366-3413


Conference5th GeoChina International Conference 2018


  • Asaoka Method
  • Experimental Embankment
  • Prefabricated Vertical Drains (PVD)
  • Soft Soil
  • Trial Embankment


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