Blar i NGI report på tittel
Viser treff 55-74 av 195
-
Dynamical Aspects of the 2017 Rigopiano Avalanch
(NGI-rapport;20170131-08-TN, Research report, 2019-01-21)Abstract: Data on the disastrous snow avalanche that occurred on 2017-01-18 at the spa hotel Rigopiano, municipality of Farindola in the Abruzzo region of central Italy, are analyzed in the present Technical Note in different ... -
Dynamical Consistency Constraints on Entrainment and Deposition in Depth-Averaged Models of Snow Avalanches and Other Gravity Mass Flows
(NGI-rapport;20110112-00-1-TN, Research report, 2012-05-18)This paper discusses several issues related to the mathematical and physical formulation of entrainment in depth-averaged models of gravity mass flows (GMF) such as snow avalanches and landslides. (i) The relation between ... -
Dynamiske regnemodeller for steinskred
(NGI-rapport;58500-03, Research report, 1988-09-26)NGI har en nasjonal forpliktelse til å drive forskning og rådgivningsarbeid innenfor fagfeltet skred. Aktuelle skredtyper er kvikkleireskred, andre løsmasseskred, snøskred og steinskred. Dette forskningsprosjektet berører ... -
Dødsulykker i snøskred 2003-2013
(NGI-rapport;20140053-02-R, Research report, 2016-09-02)Denne NGI-rapporten inneholder analyser av dødsulykker i snøskred i Norge i 10-årsperioden 2003-2013. Rapporten er utarbeidet innen prosjekt SP 4 FoU Snøskred 2014-2016. -
Effect of various storage times for a block sample. Experiences with sample tubes coated with a low friction polymer and a new piston sampler, all on Onsøy clay
(NGI Rapport;20170166-01-R, Report, 2017-11-08)This report contains the results of four CAUC triaxial tests, two being performed on block samples and two on 72 mm tube samples. The tests were all performed on plastic clay from Onsøy. The purpose with the block samples ... -
Environmental impact assessments of geotechnical works
(NGI-rapport;20200436-12-R, Research report, 2023-08-14)One of the major contributors to global carbon emissions is the construction sector. Using world environmental input-output tables from 2009, the total CO2-emissions from the global construction sector was calculated to ... -
Estimating Avalanche Triggering Probability using meteorological and local terrain parameters through a fuzzy inference approach
(NGI-rapport;20170131-12-TN, Research report, 2019-04-23)The aim of the present study is the quantitative estimation of snow avalanche triggering probability (ATP) for daily local forecasting purposes based on meteorological and local terrain factors. At present, ATP is indirectly ... -
Estimation of hysteretic soil damping from laboratory measurements including strain accumulation
(NGI Rapport;20110087-01-R, Research report, 2014-05-12)The periodic forces due to wind, surface waves and swells on offshore installations such as offshore wind turbines lead to cyclic motion of the soil foundation. The damping properties of soils account for a part of the ... -
The EU CADZIE database for extreme and deflected snow avalanches
(NGI-rapport;20001289-01, Research report, 2001-09-05)ABSTRACT. The EU program CADZIE (Catastrophic Avalanches: Defence Structures and Zoning in Europe), was established after the catastrophic 1999 avalanche winter in Europe. The overall objective of the program is improved ... -
EU Program CADZIE WP5. Norwegian zoning tools.
(NGI-rapport;20011001-02, Research report, 2001-04-20)In Work Package 5, Task 2 of the EU-Program CADZIE (Catastrophic Avalanches, Defence Structures and Zoning in Europe), each participating country will contribute to Deliverable D9: Pre-standardisation of zoning tools. The ... -
EU program CADZIE. Road traffic and avalanches - methods for risk evaluation and risk management
(NGI-rapport;20001289-04, Research report, 2003-05-22)This report covers current methods that may be used to analyse and manage risks related to avalanches and road traffic. Avalanche types considered are primarily snow avalanches and rockslides. -
EU programme CADZIE. New concepts in avalanche hazard mapping
(NGI-rapport;20001018-02, Research report, 2003-06-16)The main goal of the CADZIE workpackage 1 is to improve the hazard assessment process by integrating uncertainty and to develop "best-fit" models. This goal can only be achieved if both the stochastic characteristics of ... -
EU Programme SAME. A survey of computational models for snow avalanche motion
(NGI-rapport;58122-01, Research report, 1998-12-11)Various models for computation of avalanche motion are presented, both empirical procedures including statistical and comparative models for runout distance computations as well as dynamics models describing the physics ... -
EU Programme SAME. Draft proposal for a co-ordinated European full-scale avalanche experiment
(NGI-rapport;58122-02, Research report, 1998-12-11)The scope of this proposal is to describe the conclusions made in the EU programme SAME (Avalanche Mapping, Model Validation and Warning Systems) for a future co-ordinated European full-scale avalanche experiment. It is ... -
Evalueringsrapport etter første testsesong
(NGI-rapport;20140081-02-R, Research report, 2016-10-14)NGI har utviklet et nytt system for automatisk skredvarsling ved vei, basert på geofoner og trådløse sensornettverk. Dette systemet ble første gang testet vinteren 2015/2016 i Sandneslia, ved FV472 i Gildeskål kommune.I ... -
Factual report - Halden research site
(NGI-rapport;20160154-04-R Rev. 1, Report, 2020-01-06)Halden silt site is property of Halden municipality and it is known locally as Rødsparken. As part of the characterization of Halden silt site during NGTS project, two main reports are prepared: 1) a factual report ... -
Factual Report - Permafrost Research Site
(NGI-rapport;20160154-06-R, Report, 2020-01-01)Two benchmark sites are established near Longyearbyen, Svalbard (78°13’N, 15°28’E) for long-term geotechnical testing and evaluation of field investigation methods in perennially frozen soils (i.e. permafrost). These sites, ... -
Factual report - Øysand research site
(NGI-rapport;20160154-08-R, Report, 2020-01-15)As part of the characterization of Øysand Sand site during NGTS project, two main reports are prepared: 1) a factual report (20160154-08-R) and 2) an interpretation report (20160154-09-R) (see figure in the next page). The ... -
Feltarbeid snøradar
(NGI-rapport;20180070-01-TN, Research report, 2018-11-13)GBV-prosjektet 20180070 "snøegenskaper fra dronebaserte radarmålinger" er et delmål å innhente feltdata med GPR, både fra bakken og i luft. Radardata skal gi informasjon om snødybde, lagdeling i snø og snøegenskaper. Det ... -
Field and Laboratory Test Results from NGTS soft clay site – Onsøy
(NGI-rapport;20160154-10-R, Report, 2019-12-02)In 2017, the Norwegian GeoTest Sites (NGTS) project established five research sites, one of which is the new Onsøy soft clay site located close to Fredrikstad city. This report contains all results from field and laboratory ...