Blar i Norwegian Geotechnical Institute (NGI) Digital Archive på tittel

Viser treff 1217-1228 av 1228

    • Wind-tunnel study of snowdrift around avalanche defence structures 

      Jaedicke, Christian; Naaim-Bouvet, Florence; Granig, Matthias (Journal article, 2004)
      Avalanche defence structures such as retarding dams and breaking mounds are widely used to protect residential areas and other kinds of infrastructure. The effect of the defence structures depends largely on their effective ...

    • WP 2 – Full-scale experiments at Ryggfonn Ryggfonn avalanche observations 2019/2020 

      Gauer, Peter; Langeland, Henrik (NGI-Rapport;20200017-05-TN, Research report, 2021-03-22)
      NGI is operating the avalanche test site at Ryggfonn in Stryn municipality, Vestland county, western Norway (61.969°N, 7.275°E) since early 1980s. In addition to the field work and data collection in frame work of WP2, ...

    • WP 2 – Full-scale experiments at Ryggfonn Ryggfonn avalanche observations 2020/2021 

      Gauer, Peter; Langeland, Henrik; Salazar, Sean; Kristensen, Krister (NGI-rapport;20200017-06-TN, Research report, 2022-04-07)
      NGI continues to operate the avalanche test site at Ryggfonn in Stryn municipality, Vestland county, western Norway (61.969°N, 7.275°E). In addition to the field work and data collection performed in the context of WP2 – ...

    • WP1 - Container experiments - Yearly report 2021 

      Wærsted, Frøydis Meen; Hansen, Caroline Berge Hansen; Fjermestad, Halldis; Hagelia, Per (NGI-rapport;20200436-09-R, Research report, 2023-05-08)
      Container experiments investigating leaching from alum shale under different conditions were started autumn 2020 as a part of the Under Oslo project at NGI (SP13). Furthermore, leaching from alum shale mixed with different ...

    • WP1 - Mixed fractions of black shale and rhomb porphyry 

      Totland, Christian (NGI-rapport;20200436-02-R, Research report, 2023-02-20)
      When taking out potentially acid-producing black shale in construction projects, rock masses are often unintentionally mixed with masses of other rocks. The acid-producing potential of such mixed masses is uncertain, and ...

    • WP1 - Rhomb porphyry - data report 

      Børresen, Marion (NGI-rapport;20200436-08-R, Research report, 2021-12-22)
      Samples of rhomb porphyry have been characterized with chemical analyses and different leaching experiments (column, container and standard leaching tests) to study their composition and leaching properties. Results ...

    • WP1 - Temporary storage of black shales – a compilation of case studies, experiences and overall conclusions 

      Wærsted, Frøydis Meen; Slinde, Gøril Aasen; Børresen, Marion (NGI-rapport;20200436-03-R, Research report, 2023-01-09)
      As a part of the internal R&D project "Under Oslo" at NGI, several aspects of temporary storage of black shale has been investigated. Information from different experiments and cases of black shale storage from the ...

    • Yield Stresses in Soft Contracting Clays 

      Aas, Gunnar; Lacasse, Suzanne (NGI Publication;209, Chapter, 2022)
      The undrained shear strength su along an arbitrary failure plane can be expressed as: su = 1/2(σ'ULS − σ'LLS) (1) where σ'ULS and σ'LLS denote the upper (U) and lower (L) effective, normal, compressive failure stresses ...

    • Årsrapport [FoU Snøskred 2012] 

      Sandersen, Frode; Jaedicke, Christian; Domaas, Ulrik; Gauer, Peter; Kronholm, Kalle (NGI-rapport;20120031-01-R, Research report, 2013-02-01)
      Rapporten beskriver aktivitetene som er gjennomført i 2012 innenfor FoU prosjektet ”Snøskred” finansiert gjennom NVE. Prosjektet er delt inn i 4 hovedområder: - Modellering - Varsling - Sikringstiltak, herunder ...

    • Økt skredfare kan avverges 

      Jaedicke, Christian; Isaksen, Ketil; Sletten, Kari; Kronholm, Kalle (Klima;1-2009, Chapter, 2009)
      Klimaendringer gir villere vær, mer nedbør og flere skredhendelser i deler av Norge. Men dette trenger ikke føre til flere dødsfall og økte materielle skader, hvis vi bruker sunn fornuft og følger bygningsloven.

    • Øysand research site: Geotechnical characterisation of deltaic sandy-silty soils 

      Quinteros, Santiago; Gundersen, Aleksander; L'Heureux, Jean-Sébastien; Carraro, Antonio H.; Jardine, Richard (NGI-rapport;20190154-09-R, Report, 2019-12-04)
      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 ...

    • 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 ...