Blar i Norges Geotekniske Institutt på emneord "Runout Distance"
Viser treff 1-16 av 16
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Avalanche run-out on counter-slopes
(Journal article, 2003)Counter-slopes in avalanche paths influence avalanche flow in similarways as defence structures. Measurements and calculations of run-outon such slopes will improve our understanding of retaining damdesign. We have studied ... -
Calculation of maximum snow-avalanche run-out distance by use of digital terrain models.
(Journal article, 1989)This paper discusses how maximum snow-avalanche run-out distance may be calculated by a combination of topographic parameters and use of a digital terrain model. Digitized maps are being made for extensive areas of Norway. ... -
Computational models for dense snow avalanche motion
(NGI-rapport;581250-03, Research report, 1996-04-30)Seventeen various models of dense snow avalanche motion are presented. These include statistical, comparative and energy considering models for runout distance computations as well as dynamic models for avalanche motion ... -
Design of snow avalanche deflecting dams
(Chapter, 2000)Extensive effort has been put into improved understanding of avalanche deflection over the last two years. This paper discusses construction of deflecting dams in steep terrain, and gives an in-depth description 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 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 ... -
On avalanche run-up heights on deflecting dams: Centre of mass computations compared to observations.
(NGI Publication;203, Chapter, 1998)This article reports on the observed run-up heights of avalanches in terrain formations that act as "natural deflecting dams" with oblique angle of incidence. To compensate for the deficiencies of today's methods, the ... -
On the computation of parameters that model snow avalanche motion
(Journal article, 1981)This paper explores the computational problem of finding suitable numbers to use in a twoparameter model of snow avalanche dynamics. The two parameters are friction, y, and a ratio of avalanche mass to drag, MID. Given a ... -
Penzenlähner avalanche - calculation of maximum run-out of snow avalanches. Presentation of the results from the Norwegian working group
(Journal article, 1999)In order to find a probable run-out of extreme snow avalanches in the area east of HU:1gerburg of the Penzenlahnerlawine, we have used three different methods to calculate runout in the same manner as in Norway. The models ... -
Permafrost response to environmental and industrial loads. Snø og snøskred på Svalbard. Registrering av snøforhold, snøskred og utløpslengder
(NGI-rapport;58910-04, Research report, 1999-12-30)Det er behov for forskning på snø og skred i arktiske områder for å kunne gi faglig verifiserte råd i forbindelse med utvikling og bruk av områdene. Problemstillinger og erfaringer fra ca 25 konsulentoppdrag på Svalbard ... -
Significance of historical records for avalanche hazard zoning in Norway
(The International Snow Science Workshop (ISSW) Proceedings;, Chapter, 2000)In avalanche hazard zoning, it is common practice to investigate the previous avalanche history for the area considered. Historical observations of avalanches serve as an aid in the classification of the terrain, and may ... -
Simulation of snow-avalanche flow in run-out zones.
(Journal article, 1989)The authors of this paper have previously, in 1987, outlined the development of a set of constitutive equations representing the behaviour of avalanching snow, and the resulting equations for fully developed steady shear ... -
Slush-flow questionnaire.
(Journal article, 1989)Questionnaires concerning slush flows were distributed globally. The purpose of the questionnaire was to determine the geographic distribution of slush-flow activity and also to collect information concerning the most ... -
Snow avalanche energy estimation from seismic signal analysis
(Journal article, 2007)A method to determine the dissipated seismic energy into the ground by a down going avalanche is presented. Evaluation of the seismic energy is useful for avalanche size classification, model validation, and for characterization ... -
Snow avalanche speed determination using seismic methods
(Journal article, 2007)We present a new method to determine the average propagation speed of avalanches using seismic techniques. Avalanche propagation speeds can reach 70 m/s and more, depending on a wide range of factors, such as the characteristics ... -
Statistical and geometrical definition of snow avalanche runout
(Journal article, 1987)Two mathematical models for calculating the extreme avalanche runout from a fixed reference point on the path are presented and contrasted. The models are: (1) estimates of confidence limits on regression analyses of ...