Effects of structure boundary conditions and snow-pack properties on snow-creep pressures

Structures placed in deep snow covers are subject to forces caused by interruption of the down-slope snow-pack deformation components. The resulting creep pressures are often the primary design consideration. In this paper, accurate field data (pressures) and theoretical analysis of the problem usin...

Full description

Bibliographic Details
Main Authors: McClung, D. M., Larsen, J. O.
Format: Article in Journal/Newspaper
Language:English
Published: 1989
Subjects:
Online Access:https://nrc-publications.canada.ca/eng/view/ft/?id=38e0b8bc-73fb-486d-af00-462e7342e400
https://nrc-publications.canada.ca/eng/view/object/?id=38e0b8bc-73fb-486d-af00-462e7342e400
https://nrc-publications.canada.ca/fra/voir/objet/?id=38e0b8bc-73fb-486d-af00-462e7342e400
id ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20378838
record_format openpolar
spelling ftnrccanada:oai:cisti-icist.nrc-cnrc.ca:cistinparc:20378838 2023-05-15T13:29:12+02:00 Effects of structure boundary conditions and snow-pack properties on snow-creep pressures McClung, D. M. Larsen, J. O. 1989 text https://nrc-publications.canada.ca/eng/view/ft/?id=38e0b8bc-73fb-486d-af00-462e7342e400 https://nrc-publications.canada.ca/eng/view/object/?id=38e0b8bc-73fb-486d-af00-462e7342e400 https://nrc-publications.canada.ca/fra/voir/objet/?id=38e0b8bc-73fb-486d-af00-462e7342e400 eng eng issn:0260-3055 Annals of Glaciology, Volume: 13, Publication date: 1989, Pages: 175–179 report_number:IRC-P-1625 snow loads creep boundary conditions structural properties pack charge de neige fluage condition aux limites proprié té structurale article 1989 ftnrccanada 2021-09-01T06:34:25Z Structures placed in deep snow covers are subject to forces caused by interruption of the down-slope snow-pack deformation components. The resulting creep pressures are often the primary design consideration. In this paper, accurate field data (pressures) and theoretical analysis of the problem using a linear creep law to define snow deformation are presented. Results include analytical expressions for the pressures, and it is demonstrated that the resulting linear theory underestimates the mean pressures by about 20%. Higher accuracy will require that a non-linear deformation law be formulated. Les ouvrages se trouvant dans les manteaux nivaux épais sont soumis à des forces dues à l'interruption des éléments de déformation du manteau nival dans le sens de la pente. Les pressions de fluage qui en résultent constituent souvent le principal facteur à prendre en compte dans la conception. Les auteurs de ce document fournissent des données de terrain (pressions) précises et font une analyse théorique du problème à l'aide d'une loi du fluage linéaire visant à définir la déformation de la neige. Ils formulent des expressions analytiques représentant les pressions et montrent que la théorie linéaire résultante sous-estime d'environ 20% les pressions moyennes. Pour en arriver à une plus grande précision, il faudra établir une loi de la déformation non linéaire. Peer reviewed: Yes NRC publication: Yes Article in Journal/Newspaper Annals of Glaciology National Research Council Canada: NRC Publications Archive
institution Open Polar
collection National Research Council Canada: NRC Publications Archive
op_collection_id ftnrccanada
language English
topic snow loads
creep
boundary conditions
structural properties
pack
charge de neige
fluage
condition aux limites
proprié té structurale
spellingShingle snow loads
creep
boundary conditions
structural properties
pack
charge de neige
fluage
condition aux limites
proprié té structurale
McClung, D. M.
Larsen, J. O.
Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
topic_facet snow loads
creep
boundary conditions
structural properties
pack
charge de neige
fluage
condition aux limites
proprié té structurale
description Structures placed in deep snow covers are subject to forces caused by interruption of the down-slope snow-pack deformation components. The resulting creep pressures are often the primary design consideration. In this paper, accurate field data (pressures) and theoretical analysis of the problem using a linear creep law to define snow deformation are presented. Results include analytical expressions for the pressures, and it is demonstrated that the resulting linear theory underestimates the mean pressures by about 20%. Higher accuracy will require that a non-linear deformation law be formulated. Les ouvrages se trouvant dans les manteaux nivaux épais sont soumis à des forces dues à l'interruption des éléments de déformation du manteau nival dans le sens de la pente. Les pressions de fluage qui en résultent constituent souvent le principal facteur à prendre en compte dans la conception. Les auteurs de ce document fournissent des données de terrain (pressions) précises et font une analyse théorique du problème à l'aide d'une loi du fluage linéaire visant à définir la déformation de la neige. Ils formulent des expressions analytiques représentant les pressions et montrent que la théorie linéaire résultante sous-estime d'environ 20% les pressions moyennes. Pour en arriver à une plus grande précision, il faudra établir une loi de la déformation non linéaire. Peer reviewed: Yes NRC publication: Yes
format Article in Journal/Newspaper
author McClung, D. M.
Larsen, J. O.
author_facet McClung, D. M.
Larsen, J. O.
author_sort McClung, D. M.
title Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
title_short Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
title_full Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
title_fullStr Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
title_full_unstemmed Effects of structure boundary conditions and snow-pack properties on snow-creep pressures
title_sort effects of structure boundary conditions and snow-pack properties on snow-creep pressures
publishDate 1989
url https://nrc-publications.canada.ca/eng/view/ft/?id=38e0b8bc-73fb-486d-af00-462e7342e400
https://nrc-publications.canada.ca/eng/view/object/?id=38e0b8bc-73fb-486d-af00-462e7342e400
https://nrc-publications.canada.ca/fra/voir/objet/?id=38e0b8bc-73fb-486d-af00-462e7342e400
genre Annals of Glaciology
genre_facet Annals of Glaciology
op_relation issn:0260-3055
Annals of Glaciology, Volume: 13, Publication date: 1989, Pages: 175–179
report_number:IRC-P-1625
_version_ 1765999273694986240