Browsing Norwegian Geotechnical Institute (NGI) Digital Archive by Title
Now showing items 275-294 of 431
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National database for mitigative measures against rapid gravity mass flows and rock falls
(Lecture, 2012)Mitigation measures against natural catastrophes, such as rapid gravity mass flows and rock falls, have been built in Norway for centuries. Over the last few decades the number of new constructions has been increasing due ... -
Nature-based solutions for hydro-meteorological risk reduction: a state-of-the-art review of the research area
(Journal article; Peer reviewed, 2020)Hydro-meteorological risks due to natural hazards such as severe floods, storm surges, landslides and droughts are causing impacts on different sectors of society. Such risks are expected to become worse given projected ... -
NE Atlantic continental slope stability from a numerical modeling perspective
(Peer reviewed; Journal article, 2018)Trough mouth fans are environments characterized by high sediment supply during glacial stages and the occurrence of large-scale instabilities. The geological record indicates that several of these environments have failed ... -
Nonlinear soil-pile interaction for offshore wind turbines
(Journal article; Peer reviewed, 2018)The current work presents a parametric study, which involves different generalized nonlinear mechanical formulations with different damping characteristics to account for the interaction between a monopile‐supported offshore ... -
Norway's National GeoTest Site Research Infrastructure (NGTS)
(Chapter, 2017) -
Not extinct yet: innovations in frequency domain HEM triggered by sea ice studies
(Journal article, 2015)The last 15 years have brought major innovations in helicopter towed time domain electromagnetics (EM), while few further developments have been made within the classic frequency domain segment. Operational use of frequency ... -
Numerical modeling of liquefaction and its impact on anchor piles for floating offshore structures
(Peer reviewed; Journal article, 2019)Anchor piles and suction anchors have been used for anchoring different types of offshore structure in the past four decades. The recent growing interest and demand for wind energy has motivated the industry to evaluate ... -
Numerical prediction and back-calculation of time-dependent behaviour of Ballina test embankment
(Peer reviewed; Journal article, 2017)The paper describes the Class A prediction and Class C back-calculations of the Ballina test embankment using the finite element program Plaxis and the Soft Soil Creep Model (SSCM). The prediction underestimated the measured ... -
Numerical solutions for nonlinear high damping rubber bearing isolators: Newmark's method with Netwon-Raphson iteration revisited
(Peer reviewed; Journal article, 2018)Numerical methods for the solution of dynamical problems in engineering go back to 1950. The most famous and widely-used time stepping algorithm was developed by Newmark in 1959. In the present study, for the first time, ... -
Nutrient effect of various composting methods with and without biochar on soil fertility and maize growth
(Journal article; Peer reviewed, 2019)This work showed for the first time that organic nutrient transformation techniques based on locally available materials (manure, green waste and advanced biochar) can increase fertilizing efficiency of the resulting ... -
Offshore Wind Turbine Foundations State of the Art
(Chapter, 2019)The huge growth and intense development in the European offshore wind power sector over the last decade have created significant achievements within the wind turbine foundation technology. The state of the art focusing on ... -
On the characteristics of landslide tsunamis
(Journal article, 2015)This review presents modelling techniques and processes that govern landslide tsunami generation, with emphasis on tsunamis induced by fully submerged landslides. The analysis focuses on a set of representative examples ... -
On the influence of overconsolidation effect on the compressibility assessment of subsoil by means of CPTU and DMT
(Peer reviewed; Journal article, 2016)The paper contains the analysis of the influence of overconsolidation effect on the values of constrained moduli, assumed by means of two most popular in situ advanced tests. The tested soils included two geological ... -
On the landslide tsunami uncertainty and hazard
(Peer reviewed; Journal article, 2020)Landslides are the second most frequent tsunami source worldwide. However, their complex and diverse nature of origin combined with their infrequent event records make prognostic modelling challenging. In this paper, we ... -
On the stress update algorithm of an advanced critical state elasto-plastic model and the effect of yield function equation
(Journal article, 2014)This paper investigates the computational performance of S-CLAY1S constitutive model by varying its yield function equation. S-CLAY1S is an advanced anisotropic elasto-plastic model that has been developed based on the ... -
Organic Content and Maturation Effects on Elastic Properties of Source Rock Shales in the Central North Sea
(Peer reviewed; Journal article, 2019)We investigate the effects of organic content and maturation on the elastic properties of source rock shales, mainly through integration of a well log database from the Central North Sea and associated geochemical data. ... -
Organic-rich shale caprock properties of potential CO2 storage sites in the northern North Sea, offshore Norway
(Peer reviewed; Journal article, 2020)Assessment of the geomechanical properties of organic-rich shale caprocks is critical for a successful CO2 storage into a saline aquifer. In this study, we investigated the geochemical properties of the organic-rich shale ... -
PAH i forurenset sediment: Utredning av egnethet av PAHkomponenter/ grupperinger for vurdering av tiltaksbehov
(Research report, 2015)I Norge er det utarbeidet klassegrenser for til sammen 16 PAH-forbindelser i sediment og vann. Grenseverdiene baserer seg på kunnskap om toksisitet av de ulike stoffene og hva som er akseptabel eksponering for miljøet. I ... -
Parameterization of a numerical 2-D debris flow model with entrainment: a case study of the Faucon catchment, Southern French Alps
(Journal article, 2012)The occurrence of debris flows has been recorded for more than a century in the European Alps, accounting for the risk to settlements and other human infrastructure that have led to death, building damage and traffic ... -
Peatland Volume Mapping over Resistive Substrates with Airborne Electromagnetic Technology
(Peer reviewed; Journal article, 2019)Despite the importance of peatlands as carbon reservoirs, a reliable methodology for the detection of peat volumes at regional scale is still missing. In this study we explore for the first time the use of Airborne ...