Browsing NGI articles by Document Types "Chapter"
Now showing items 221-240 of 275
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Snaps - snow, ice and avalanche applications
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2012)The SNAPS project focuses on snow and avalanche services for transport infrastructure in selected areas within the Northern Periphery in Iceland, Norway, Sweden and Finland. The main tasks of the project are: development ... -
Snow avalanche at Bleie, Ullensvang, January 1994.
(NGI Publication;203, Chapter, 1998)A major snow avalanche hit the farms at Bleie, municipality of Ullensvang, January 27 1994. Three dwelling houses were completely destroyed, and several other buildings were destroyed or damaged. The history of the Bleie ... -
Snow avalanche dynamics : observations and experiments
(NGI Publication;203, Chapter, 1998)In order to investigate the dynamics and the detailed structure of snow avalanches, we have made systematic observations in the Shiai-dani, Kurobe Canyon since 1989. Velocities of the lower flowing component were calculated ... -
Snow avalanche experience through 25 years at NGI.
(NGI Publication;203, Chapter, 1998)This year it is 25 years since the Norwegian parliament decided that NG! should be the institution responsible for snow avalanche research and consulting work in Norway. Because of several major snow avalanche accidents ... -
Snow Avalanches
(Chapter, 2004)Snow avalanches represent a threat to societies in many countries of the world. In America, Asia, Australia, and Europe, several mountainous countries are affected by this type of natural hazard. People, housing areas, ... -
Snow creep pressure on mast constructions
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 1990)In Norway snow-creep quite often causes damage on mast constructions on hillsides exposed to deep snow-cover. An extensive snow-creep measurement program has therefore been carried out for different constructions at NGI's ... -
Snow drift challenges at Klettsháls mountain road pass in Iceland
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2014)Snow fences are usually used to control snowdrift problems on a relatively flat and open terrain. Snowdrift problems on mountain roads and passes are normally more challenging. The terrain is often more complex, winds can ... -
The snowdrift pattern around a small hill in the High Arctic
(Chapter, 2000)The snow distribution in complex terrain is important for the planning of infrastructure, so that large snow depths can be avoided in residential areas and in connection with roads and railroads. Numerical models can give ... -
The snowdrift pattern around two cubical obstacles with varying distance. Measurements and numerical simulations.
(Chapter, 2000)Snowdrifts around buildings can cause serious problems when formed on undesirable places. The formation of snowdrifts is highly connected to the wind pattern around the building, and the wind pattern is again dependent on ... -
Snowmelt and slush avalanches / slushflows in nothern mountains, Sweden. A video presentation.
(NGI Publication;203, Chapter, 1998)A video of 15 minutes duration reviews different cases of slushflows in May-June 1995 and their behaviour during release and downslope propagation. Slushflow dynamics are compared with other types of mass movement. -
Snøskred og vurdering av snøskredfare
(Chapter, 1976)Artikkelen gir først en kort historikk av snøskredforskning i Norge. Den er nå organisert ved Norges Geotekniske Institutt som har etablert en fast forskningsstasjon i høyfjellet. Deretter er det redegjort for de viktigste ... -
Soil classification of NGTS sand site (Øysand, Norway) based on CPTU, DMT and laboratory results
(Chapter, 2018)The Norwegian GeoTest Site project (NGTS) established five research sites in Norway in 2016. The sites are referred to as sand, soft clay, quick clay, silt and permafrost. The project is funded by the Research Council of ... -
Some results of long-term variability of avalanche activity of CIS mountains
(NGI Publication;203, Chapter, 1998)The work present the analysis of the long variation of avalanche activity of former USSR (CIS) mountains by the data of regular observations. There were determined the periods of activigation and reduction of avalanche ... -
Stability analyses of quick clay using FEM and an anisotropic strain softening model with internal length scale
(Chapter, 2012)Sensitive soft clays generally display a significant post peak strain softening response under undrained deformation. A consequence of this behavior is that the safety factor during undrained stress changes cannot be ... -
Stability of Natural Slopes in Quick Clay
(NGI Publication;209, Chapter, 2022)Norway and Sweden have been subjected to landslides for several centuries, with some of the largest landslides involving a large block sliding out as a continuous flake on a deposit of soft quick clay. Attempts to calculate ... -
Statistical avalanche zoning.
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 1984)Runout for the extreme event on an avalanche path is calculated from confidence limits on a regression analysis of path topographic parameters. This results in redefinition of the traditional zoning problem by dividing it ... -
Stochastic study of stability of unsaturated heterogeneous slopes destabilised by rainfall
(Chapter, 2018)Failure of unsaturated soils due to rainfall infiltration is a threat in many parts of the world with temperate or hot climate. Understanding of unsaturated slope stability during rainfall infiltration is an important but ... -
Stochastic study of stability of unsaturated heterogeneous slopes destabilised by rainfall
(Chapter, 2018)Failure of unsaturated soils due to rainfall infiltration is a threat in many parts of the world with temperate or hot climate. Understanding of unsaturated slope stability during rainfall infiltration is an important but ... -
Study on the practices for preconsolidation stress evaluation from oedometer tests
(Chapter, 2016)The preconsolidation stress (pc') is determined from high-quality oedometer test results by a variety of interpretation methods. Sample quality in the database varies from very excellent to fair (i.e. class 1-2). Results ... -
A survey of snow avalanche accidents in Norway.
(Norwegian Geotechnical Institute;203, Chapter, 1998)Available historical data relating to snow avalanche accidents in Norway have been examined, ranging from the 17th century to present. A near continuous record of avalanche deaths from 1855 is documented. From 1946, the ...