Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Title
Now showing items 466-485 of 1228
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Field and Laboratory Test Results from NGTS soft clay site – Onsøy
(NGI-rapport;20160154-10-R, Report, 2019-12-02)In 2017, the Norwegian GeoTest Sites (NGTS) project established five research sites, one of which is the new Onsøy soft clay site located close to Fredrikstad city. This report contains all results from field and laboratory ... -
Field experiments at three sites to investigate the effects of age on steel piles driven in sand
(Peer reviewed; Journal article, 2019)This paper investigates the influences that steel type, in-situ soil properties, water table depth, pile diameter, roughness and driving procedures have on the ageing behaviour of piles driven in sand. Tension tests have ... -
Field measurements of sintering after fracture of snowpack weak layers
(Journal article, 2006)This research documents two cases where field workers unintentionally fractured a snowpack weak layer, but no avalanche released. Measurements from before and after the fractures provide unique data sets on the temporal ... -
Field Survey of the 2017 Rigopiano Avalanche
(NGI-rapport;20170131-02-TN, Research report, 2019-12-26)In the evening of January 18, 2017, a large snow avalanche descended from the east flank of Monte Siella in the municipality of Farindola in the Abruzzo region of Italy. It completely destroyed the Hotel Rigopiano and ... -
Field test of UAS to support avalanche monitoring
(Statens vegvesens rapporter;873, Report, 2022-11-08)I mars/april 2022 gjennomførte Statens vegvesen, Norges geotekniske institutt og SINTEF en felttest med UAS med ulike instrumenter på forskningsstasjonen Fonnbu i Stryn. Formålet med testen var å evaluere bruken av ... -
Field verification tests of the newly developed flow cone tool—In-situ measurements of hydraulic soil properties
(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 ... -
Finite element modeling of snow-pack lying on a slope, considering snow as isotropic compressible viscoplastic media
(NGI Publication;203, Chapter, 1998)A simple extension of the von Mises plasticity is proposed in which the equivalent stress is defined as a function of deviatoric and hydrostatic stresses. Non-linearity is accounted by extending NortonHoff equation for ... -
First geophysical investigations to study a fragile Pomor cultural heritage site at Russekeila – Kapp Linné), Svalbard
(Peer reviewed; Journal article, 2023)With climate warming, the cultural heritage sites of the Arctic are in great danger. Extensive research is needed to study such sites. The archaeological site at Russekeila – Kapp Linné, Svalbard was selected for the survey ... -
First steps in the development of standardised processes for life cycle assessments of geotechnical works
(Peer reviewed; Journal article, 2022) -
First-time landslides in Vashon advance glaciolacustrine deposits, Puget Lowland, U.S.A.
(Peer reviewed; Journal article, 2018)Advance glaciolacustrine (Qglv) deposits from the last continental glaciation are widespread in the densely populated Puget Lowland and are prone to shallow landsliding. Much less frequently in historic time, new landslides ... -
Five decades of warming: impacts on snow cover in Norway
(Journal article, 2018)Northern latitudes are experiencing faster warming than other regions in the world, which is partly explained by the snow albedo feedback. In Norway, mean temperatures have been increasing since the 1990s, with 2014 being ... -
Flame curtain kilns produce biochar from dry biomass with minimal methane emissions
(Peer reviewed; Journal article, 2023) -
Flow cone – new CPTU add-on module trialled in Halden silt
(Chapter, 2022) -
Fluid flow and pore pressure development throughout the evolution of a trough mouth fan, western Barents Sea
(Peer reviewed; Journal article, 2018)Using a combination of geophysical and geotechnical data from Storfjorden Trough Mouth Fan off southern Svalbard, we investigate the hydrogeology of the continental margin and how this is affected by Quaternary glacial ... -
Fluid‐Rock Interactions in Clay‐Rich Seals: Impact on Transport and Mechanical Properties
(Chapter, 2018)Fluid‐rock interaction in low‐permeable clay‐rich seal units is an important topic for the evaluation of the long‐term seal integrity during geological storage of CO2. In low‐permeable sealing units, the diffusion of CO2 ... -
Fluorinated Precursor Compounds in Sediments as a Source of Perfluorinated Alkyl Acids (PFAA) to Biota
(Peer reviewed; Journal article, 2020)The environmental behavior of perfluorinated alkyl acids (PFAA) and their precursors was investigated in lake Tyrifjorden, downstream a factory producing paper products coated with per- and polyfluorinated alkyl substances ... -
Fonnbu, a new (old) platform for snow and avalanche research.
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2008)One of the first tasks of the newly established avalanche group at the NGI in 1973 was the selection of a suitable location for an avalanche research station. The choice was on Grasdalen, north of the Jotunheimen mountains, ... -
Forcasting snow avalanche days from meteorological data using classification trees; Grasdalen, Western Norway
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2006)Avalanches pose one of the most serious problems to infrastructure and people in the mountains in Norway. Processes leading to avalanche release are deterministic but the time and place of avalanche release is notoriously ... -
Forecast of avalanche danger for the intracontinental regions of Northeast of Eurasia
(NGI Publication;203, Chapter, 1998)The research area includes the Kolyma riverhead with tributaries. For this territory the extreme continental climate with very frost winters is common. The duration of snow cover is 200-230 days. The domination of low ...