Blar i NGI articles på tittel
Viser treff 210-229 av 1033
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Combining Leaching and Passive Sampling to Measure the Mobility and Distribution between Porewater, DOC and Colloids of Native Oxy-PAHs, N-PACs and PAHs in Historically Contaminated Soil
(Journal article, 2016)Different methods to quantify soil porewater concentrations of contaminants will provide different types of information. Passive sampling measurements give freely dissolved porewater concentrations (Cpw,free), while leaching ... -
Comments on avalanche flow models based on the concept of random kinetic energy
(Peer reviewed; Journal article, 2017)In a series of papers, Bartelt and co-workers developed novel snow-avalanche models in which random kinetic energy RK (a.k.a. granular temperature) is a key concept. The earliest models were for a single, constant density ... -
Comments on “On a Continuum Model for Avalanche Flow and Its Simplified Variants” by S. S. Grigorian and A. V. Ostroumov
(Others, 2020)This note first summarizes the history of the manuscript “On a Continuum Model for Avalanche Flow and Its Simplified Variants” by Grigorian and Ostroumov—published in this Special Issue—since the early 1990s and explains ... -
Compaction, rock physics and rock properties of sandstones of the Stø Formation: Case study of five wells from the south-western Barents Sea, Norway
(Peer reviewed; Journal article, 2020)Five wells containing Lower-Middle Jurassic sandstones of Stø Formation from the Hammerfest Basin (7120/9–1, 7121/7–1), the Ringvassøy-Loppa Fault Complex (7119/12–1, 7119/12–4) and the Troms-Finnmark Fault Complex (7019/1-1) ... -
Comparing laboratory and field samples of lime-cement improved Norwegian clay
(Peer reviewed; Journal article, 2022) -
Comparing topographical and dynamical runout models by ideas of nearest neighbour method
(Journal article, 1999)Different avalanche runout models are used to compare the calculated results against observations of 230 real avalanches in Norway. The parameters used in the models are investigated and optimized to get the best fit to ... -
Comparison of analytical and numerical design of suction anchors in deepwater clays
(Chapter, 2017)The paper presents the result of an extensive study on the undrained holding capacity of suction anchors with different length-to-diameter ratios. The clays used in this study have a linearly increasing undrained shear ... -
Comparison of avalanche front velocity measurements and implications for avalanche models
(Journal article, 2013)Besides the runout distance of an avalanche information on avalanche intensity along the path is often required for hazard zoning or planning of mitigation measures. The avalanche (front) velocity is a common intensity ... -
Comparison of avalanche front velocity measurements: Supplementary energy considerations
(Journal article, 2013)A series of front velocity measurements were re-analyzed to derive estimates on the mean retarding acceleration of dry-mixed avalanches (i.e. dry-snow avalanches, which were partially fluidized and accompanied by a powder ... -
A comparison of avalanche models with data from dry-snow avalanches at Ryggfonn, Norway
(Chapter, 2005)Twelve well-documented dry-snow avalanches from the instrurnented Ryggfonn path in western Norway were selected for back-ca1culations with several dynamical avalanche models. In each case, the run-out distance, the front ... -
Comparison of Sealing Properties of Amundsen and Drake Formations for Potential CO2 Storage in North Sea
(Chapter, 2019)Seal evaluation for CO2 storage is different from that of a hydrocarbon trap since the oil or gas accumulation itself validates the cap-rock integrity. However, in case of subsurface CO2 storage a careful investigation is ... -
Comparison of snow pressure measurements and theoretical predictions
(Journal article, 1984)Measurements of snow creep pressures from the centre section of a 3.4 m high and 15 m long avalanche-defence supporting structure located on a mountain in western Norway are presented. The site has a deep snow cover and ... -
Comparison of the condition of steel fiber-reinforced shotcrete with water-glass and alkali-free activators after more than 20 years of service in a subsea road tunnel
(Journal article, 2022-04-18)The in-service condition of steel fiber-reinforced shotcrete installed more than 20 years ago as single-shell rock support lining in the Nordkapp subsea road tunnel was investigated. The novelty of this study is the ... -
Conclusions from a recent survey of avalanche computational models
(NGI Publication;203, Chapter, 1998)In this paper we summarise a survey report on computational models for snow avalanche motion that was developed within the frame-work of the EU research project SAME (Snow Avalanche Modelling, Mapping and Warning in Europe). ... -
Conclusions on the current status on avalanche modelling
(Chapter, 1999)An examination of existing models shows that: (1) there is not - and probably never will be - a single model that adequately describes all avalanche types; (2) in order to account for the extraordinary variability of ... -
Considerations for using critical state soil mechanics based constitutive models for capturing static liquefaction failure of tailings dams
(Peer reviewed; Journal article, 2024) -
Considerations on scaling behavior in avalanche flow along cycloidal and parabolic tracks
(Peer reviewed; Journal article, 2018)A simple scaling analysis using a simple mass block model supports observations and measurements on snow avalanches, that the maximum front-velocity of “major” avalanches scales with the total drop height of the track. ... -
Considerations on scaling behavior in avalanche flow: Implementation in a simple mass block model
(Peer reviewed; Journal article, 2020)Observations of runout distances combined with velocity measurements suggest that “major” dry-mixed avalanches show a scale invariance to the total drop height HSC. This is in accordance to the proposed upper-limit envelope ... -
Consolidation-induced improvements in plate anchor capacity
(Peer reviewed; Journal article, 2023)