Blar i NGI articles på dokumenttype "Lecture"
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3D fault integrity screening for Smeaheia CO2 injection site
(Lecture, 2018) -
3D fault integrity screening for Smeaheia CO2 injection site
(Lecture, 2018)Task leader, Elin Skurtveit presents the GHGT paper "3D fault integrity screening for Smeaheia CO2 injection site" together with plans for future work. -
Accounting for effects of cyclic loading in design of offshore wind turbine foundations
(Lecture, 2023)In the design of foundations for offshore structures, it is generally important and required to consider the effects of cyclic loading caused by waves and wind. Therefore, NGI has developed a framework since the early 1970s ... -
Assessment of the impact of pile driving on slope stability
(Lecture, 2023)Driving piles near slopes can be challenging in terms of temporarily reducing slope stability, specifically in the presence of sensitive clay or lenses of sand and silt in the ground. There is currently no standard method ... -
Avalanche prediction and strength-of-knowledge assessment
(Lecture, 2018)The NGI provides local avalanche forecasting, produces hazard maps and acts as an advisor for national and local authorities during emergencies. A main task is often to assess the likelihood of an avalanche reaching specific ... -
Avalanche probability: Slab release and the effect of forest cover
(Lecture, 2018)One of the main challenges in regard to hazard mapping is to estimate avalanche probabilities and avalanche size for a given path. One reason for this is the lack of sufficient data. By definition, avalanches of interest ... -
Calculation of soil volume loss caused by drilling of anchors
(Lecture, 2023)Accurate prediction of ground settlements related to deep supported excavations or foundation works are key in risk assessments of vulnerability of neighboring assets. Several studies show that rotary percussive duplex ... -
CO2 Flow, Alteration And Geomechanical Response In Confining Units – An Experimental ApproachGreen Open Access
(Lecture, 2018)Seal integrity during injection operations is a topic of great interest both within the CO2 storage community, for wastewater injection and traditional reservoir pressure support. The Little Grand Wash fault, central Utah, ... -
The design of avalanche protection dams. Recent practical and theoretical developments
(Lecture, 2008)Recent experimental and theoretical studies of the flow of avalanches against obstructions have been used, in combination with traditional design guidelines, to formulate recommendations for the design of dams and other ... -
The effect of dam constructions as mitigative measures: 14 years of experience from a full-scale project
(Lecture, 1996)The Ryggfonn project is a full-scale project for determination of avalanche behavior. Measurements of velocities, impact pressures and observations of flow patterns around a 15 m high and 75 m long earthfill dam, have been ... -
Effects of fines content in numerical simulation of CPTu in silty sands
(Lecture, 2023)The Cone Penetration Test (CPTu) does not measure soil properties directly; rather, it measures cone resistance, sleeve friction and pore water pressure, that correlated with laboratory test data, allow estimation of soil ... -
Estimates on the reach of the powder part of avalanches
(Lecture, 2018)Avalanche observations from Norway, Austria and Switzerland, which distinguish between dense (fluidized) flow and powder part, are analyzed to obtain probability information about the reach of the powder part. The analysis ... -
Estimating run-out distances for extreme snow avalanches
(Lecture, 1992)Estimating the run-out distances for snow avalanches is an important task for land use planning in mountaneous areas. The practical requirements are usually to define the run-out for a certain return period, which varies ... -
Experimental and analytical assessment of Draupne shale seal integrity for CO2 storage sites
(Lecture, 2019)Carbon dioxide (CO2) capture and storage is one of the most important measures to reduce the atmospheric concentration of CO2. To ensure safe storage, operations must be conducted in way that respects operational limitations. ... -
Global warning reduces the consequences of snow-related hazards
(Lecture, 2018)Most recent publications dealing with consequences related to avalanches and slushflows state that their impact on mankind will increase. That is a highly debatable statement. Milder weather, shorter winters, less snow and ... -
Impact of rapid mass movement and drifting snow on the infrastructure and development of Longyearbyen, Svalbard
(Lecture, 2000)The thermal regime and hydrological conditions in arctic regions are a threat and a challenge to human activity. In the Longyearbyen area, Svalbard, snow avalanches, slushflows, debris flows , creep and drifting snow ... -
Local avalanche warning in Europe
(Lecture, 2018)Avalanche exposed settlements, communication lines, ski resort operations, construction sites, tourism and professional guiding are only few examples of activities in the mountains where an active risk management requires ... -
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 ...