Quantitative analysis of ice sheet failure against an inclined plane

• Main Authors: Frederking, R. M. W., Timco, G. W.
• Format: Article in Journal/Newspaper
• Language: English
• Published: ASME 1985
• Subjects: ice loads; marine structures; cold regions; mathematical models; slope; charge de glace; structure maritime; zone froide; modèle mathématique; pente; inclined offshore structures; force components; arctic ice conditions; flexural and crushing ice sheet behaviour; rotation and translation of broken ice; gravity and buoyancy of moving ice; component isolation testing; Arctic; Ice Sheet
• Online Access: https://nrc-publications.canada.ca/eng/view/ft/?id=2e24db67-1013-47bb-ac0d-bd5ad4a57d95; https://nrc-publications.canada.ca/eng/view/object/?id=2e24db67-1013-47bb-ac0d-bd5ad4a57d95; https://nrc-publications.canada.ca/fra/voir/objet/?id=2e24db67-1013-47bb-ac0d-bd5ad4a57d95

The main force components on inclined offshore structures in the Arctic include the flexural and crushing behaviour of the ice sheet, rotation and translation of broken ice, gravity and buoyancy in lifting and moving ice, and friction between ice and structure. Tests were carried out to isolate these components and analytical expressions were derived for them. Measured and predicted components compare favourably, the analytical model over-predicting by about 20%. Les principales composantes de la force s'exercant sur les structures inclinées construites au large des côtes dans l'océan Artique comprennent le comportement de flexure et de broyage de la couverture de glace, la rotation et la translation de la glace fractionnée, la gravité et la flottabilité des glaces en remontée et en déplacement, ainsi que la friction entre la glace et la structure. Des essais ont été effectués afin d'isoler ces composantes, puis des expressions analytiques, en ont été déduites. Les éléments mesurés et prévisionnels se comparent avantageusement, le modèle analytique donnant un excès prévisionnel de l'ordre de 20%. Peer reviewed: Yes NRC publication: Yes