• A geochemical, mineralogical and geotechnical characterization of the low plastic, highly sensitive glaciomarine clay at Dragvoll, Norway 

      Helle, Tonje Eide; Aagaard, Per; Nordal, Steinar; Long, Michael; Bazin, Sara (Peer reviewed; Journal article, 2019)
      The sediments at the NTNU research site Dragvoll, Trondheim, Norway accumulated in seawater close to the glacier front during the Pleistocene-Holocene transition. A comprehensive site investigation and laboratory test ...
    • Characterization and Engineering properties of Natural Soils used for Geotesting 

      L Heureux, Jean-Sebastien; Lunne, Tom (Peer reviewed; Journal article, 2019)
      Benchmarking is of significant importance in geological and geotechnical engineering, for testing and verifying innovative soil investigation methods and foundation solutions. This Special Issue aims to present detailed ...
    • Characterization and engineering properties of the NGTS Onsøy soft clay site 

      Gundersen, Aleksander; Hansen, Ragnhild; Lunne, Tom; L Heureux, Jean-Sebastien; Strandvik, Stein Oddvar (Peer reviewed; Journal article, 2019)
      In the 1960s, NGI investigated numerous potential research sites and established the first Onsøy soft clay site in 1968. In 2016, the NGTS project established five research sites, one of which is the NGTS Onsøy soft clay ...
    • Characterization of two sites for geotechnical testing in permafrost: Longyearbyen, Svalbard 

      Gilbert, Graham Lewis; Instanes, Arne; Sinitsyn, Anatoly; Aalberg, Arne (Peer reviewed; Journal article, 2019)
      The mean annual air temperature in Svalbard has increased between 3 ℃ and 5 ℃ during the last 40 to 50 years. The continuous warming trend observed in Svalbard during the last 30 years has raised concerns about the stability ...
    • CPTU correlations for Norwegian clays: an update 

      Paniagua Lopez, Ana Priscilla; D'Ignazio, Marco; L Heureux, Jean-Sebastien; Lunne, Tom; Karlsrud, Kjell (Peer reviewed; Journal article, 2019)
      Geotechnical design in clay areas in Norway is mainly based on piezocone (CPTU) tests results. Strength and stiffness parameters are usually derived from CPTU parameters and empirical correlations. In order to improve ...
    • Engineering properties of low to medium overconsolidation ratio offshore clays 

      DeGroot, Don J.; Lunne, Tom; Ghanekar, Ravindra; Knudsen, Siren; Jones, Cody D.; Yetginer-Tjelta, Tor Inge (Peer reviewed; Journal article, 2019)
      This paper presents a summary of the geotechnical engineering properties of low to medium overconsolidation ratio offshore inorganic clays derived from a high quality database. These properties, such as preconsolidation ...
    • Estimation of preconsolidation stress of clays from piezocone by means of high-quality calibration data 

      D'Ignazio, Marco; Lunne, Tom; Andersen, Knut H; Yang, Shaoli; Di Buò, Bruno; Länsivaara, Tim (Peer reviewed; Journal article, 2019)
      An extensive database of high-quality piezocone (CPTU) and laboratory oedometer test data on onshore and offshore clays worldwide has been established. The database covers a wide range of index parameters and overconsolidation ...
    • Field verification tests of the newly developed flow cone tool—In-situ measurements of hydraulic soil properties 

      Gundersen, Aleksander Sæthereng; Carotenuto, Pasquale; Lunne, Tom; Walta, Axel; Sparrevik, Per (Peer reviewed; Journal article, 2019)
      Hydraulic soil properties, and in particular the hydraulic conductivity, is important in a number of geotechnical design cases. However, attention is often drawn towards the method of analysis rather than the quality and ...
    • Halden research site: geotechnical characterization of a post glacial silt 

      Blaker, Øyvind; Carroll, Roselyn; Paniagua Lopez, Ana Priscilla; DeGroot, Don J.; L Heureux, Jean-Sebastien (Peer reviewed; Journal article, 2019)
      This paper describes the geology and geotechnical engineering properties of the Halden silt; a 10–12 m thick deposit of fjord-marine, low plasticity clayey silt. Over the last six years, the test site has been well ...
    • Investigation and geotechnical characterization of Perniö clay, Finland 

      Di Buò, Bruno; D'Ignazio, Marco; Selänpää, Juha; Haikola, Markus; Länsivaara, Tim; Di Sante, Marta (Peer reviewed; Journal article, 2019)
      Understanding the behavior of soft sensitive clays is a key aspect of geotechnical design, especially in those regions where constructions are planned in marine clay areas. In Finland, one of the major geotechnical issues ...
    • Site characterisation and some examples from large scale testing at the Klett quick clay research site 

      Long, Mike; L Heureux, Jean-Sebastien; Bache, Bjørn Kristian Fiskvik; Lund, Alf Kristian; Hove, Svein; Sødal, Karl Gunnar; Amundsen, Helene Alexandra; Nordal, Steinar; Montafia, Alberto (Peer reviewed; Journal article, 2019)
      The Klett research site was developed in conjunction with the new E6 developments south of Trondheim, Norway. The site comprises non-sensitive clay to about 6 m to 8 m and quick clay with significant silt lenses below this ...
    • Spatial variability of medium dense sand deposit 

      Liu, Zhongqiang; Amdal, Åse Marit Wist; L Heureux, Jean-Sebastien; Lacasse, Suzanne; Nadim, Farrokh; Xie, Xin (Peer reviewed; Journal article, 2019)
      This paper presents a study of the spatial variability of the cone resistance in a medium dense sand deposit in Norway. Spatial variability studies have been done earlier for clay deposits, but there are few results available ...
    • The Tiller-Flotten research site: Geotechnical characterization of a very sensitive clay deposit 

      L Heureux, Jean-Sebastien; Lindgård, Anders; Emdal, Arnfinn (Peer reviewed; Journal article, 2019)
      The Tiller-Flotten research site was developed through the Norwegian GeoTest site (NGTS) project. The site consists of a more than 50 m thick marine clay deposit. The top 7.5 m of the deposit shows a low to medium sensitivity, ...
    • Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils 

      Quinteros, Santiago; Gundersen, Aleksander Sæthereng; L Heureux, Jean-Sebastien; Carraro, J. Antonio H.; Jardine, Richard (Journal article; Peer reviewed, 2019)
      This paper describes the geology and geotechnical engineering properties of the fluvial and deltaic gravelly-sandy-silty sediments at Øysand, Norway. Geophysical and geotechnical site investigations carried out between ...