Blar i NGI articles på tittel
Viser treff 1006-1025 av 1027
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Variability in the three-dimensional geometry of segmented normal fault surfaces
(Peer reviewed; Journal article, 2021)Normal faults are often complex three-dimensional structures comprising multiple sub-parallel segments separated by intact or breached relay zones. Relay zones are classified according to whether they step in the strike ... -
Variable rate of penetration and dissipation test results in a natural silty soil
(Chapter, 2018)Variable rate of penetration over 1.2 to 1.5 m intervals were carried out in a natural clayey silt followed by dissipation tests. The tests are grouped into two main sets: an upper set from 5 to 6.5 m and a deeper set from ... -
Velocity anisotropy of upper jurassic organic-rich shales, Norwegian continental shelf
(Peer reviewed; Journal article, 2017)This study investigates the seismic velocity anisotropy of two organic-rich shales from the Norwegian Continental Shelf. The tested organic-rich shale samples were from the Upper Jurassic Draupne and Hekkingen formations ... -
Verdens vakreste – og farligste? – fjord
(Journal article, 2015)Spillefilmen Bølgen av Roar Uthaug er blitt en gedigen kinosuksess. Den er solgt til over 100 land og valgt som Norges Oscar-bidrag 2016. Handlingen tar utgangspunkt i et tenkt scenario, der et stort skred fra fjellet ... -
Verification of a framework for cyclic p-y curves in clay by hindcast of Sabine River, SOLCYP and centrifuge laterally loaded pile tests
(Peer reviewed; Journal article, 2020)Pile foundations supporting offshore structures, such as jacket platforms, are subjected to cyclic lateral loading. The capacity and deformation of these pile foundations under cyclic lateral loading are important and ... -
Verification of avalanche bulletins by questionnaires
(NGI Publication;203, Chapter, 1998)The paper describes how avalanche bulletins (regional and national) are being verified by means of questionnaires in Switzerland. At the beginning of winter 1996/97 a set of four questionnaires has been introduced: • ... -
Vertical and lateral transport of biochar in light-textured tropical soils
(Peer reviewed; Journal article, 2016)Field experiments were conducted in Arenosols (loamy fine sand) and Acrisols (sandy loam) in Zambia to quantify vertical and lateral transport of biochar (BC) using the BC and soil 13C isotope signatures and total organic ... -
Vertical profiles of sedimentary polycyclic aromatic hydrocarbons and black carbon in the Gulf of Gdańsk (Poland) and Oslofjord/Drammensfjord (Norway), and their relation to regional energy transitions
(Peer reviewed; Journal article, 2018)The analysis of undisturbed sediment cores is a powerful tool for understanding spatial and temporal impacts of anthropogenic emissions from the energy and transport sectors at a regional scale. The spatial and vertical ... -
Vertically integrated models for coupled two-phase flow and geomechanics in porous media
(Peer reviewed; Journal article, 2016)Models of reduced dimensionality have been found to be particularly attractive in simulating the fate of injected CO2 in supercritical state in the context of carbon capture and storage. This is motivated by the confluence ... -
Vulnerability of houses and persons under avalanche impact – the avalanche at Longyearbyen on 2015-12-19
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2016)This study uses data from the avalanche that killed two persons and destroyed eleven essentially identical wood-frame houses in Longyearbyen, Svalbard, on 2015-12-19. The avalanche is back-calculated with a dynamical model ... -
V–H–M seismic capacity envelopes of strip foundations on slopes for capacity design of structure-foundation system
(Journal article; Peer reviewed, 2019)The columns and the supporting foundations are invariably subjected to the interacting axial force, V, shear force, H and moment, M. It is quite common to consider the interaction of these forces in design of structural ... -
Waste timber pyrolysis in a medium-scale unit: Emission budgets and biochar quality
(Peer reviewed; Journal article, 2020)Pyrolysis of organic waste or woody materials yields a stable carbonaceous product that can be mixed into soil and is often termed “biochar”. During pyrolysis carbon-containing gases are emitted, mainly volatile organic ... -
Waterproof sprayed concrete with improved sustainability performance
(Chapter, 2023) -
Weather and snowpack conditions essential to slushflow release and downslope propagation
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 1994)Rapid mass movement of water-saturated snow, usually known as slushflow or slush avalanche, is a major natural hazard in Norway. Slushflows occur in winter during heavy rainfall, as well as due to intense thaw in spring. ... -
Weathering Plastics as a Planetary Boundary Threat: Exposure, Fate, and Hazards
(Peer reviewed; Journal article, 2021) -
Weight of evidence tools in the prediction of acute fish toxicity
(Peer reviewed; Journal article, 2022)Acute fish toxicity (AFT) is a key endpoint in nearly all regulatory implementations of environmental hazard assessments of chemicals globally. Although it is an early tier assay, the AFT assay is complex and uses many ... -
Wetting-Drying Response of an Unsaturated Pyroclastic Soil Vegetated with Long-Root Grass
(Peer reviewed; Journal article, 2020)This paper investigates the effect of a long-root grass on the hydraulic response of a partially saturated pyroclastic soil. The work is based on both long-term monitoring under atmospheric conditions and short-term ... -
Wetting-induced collapse behaviour of a natural and vegetated coarse pyroclastic soil
(Peer reviewed; Journal article, 2020)Unsaturated pyroclastic soils originated by Vesuvius volcano show a collapsible behaviour upon wetting with a significant reduction in volume and rearrangement of solid skeleton. The paper investigates the role played by ... -
Wind-tunnel study of snowdrift around avalanche defence structures
(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 ... -
Yield Stresses in Soft Contracting Clays
(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 ...