Field measurements on the behavior of brash ice
The behavior and properties of brash ice are important issues for the design of ice-going vessels. Heavy brash ice conditions may cause vessels to be dependent on ice-breaker assistance and time delays in the shipping schedule. Brash ice properties are not well studied and full-scale field data are...
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ftsintef:oai:sintef.brage.unit.no:11250/2640276 2023-05-15T14:23:38+02:00 Field measurements on the behavior of brash ice Bonath, Victoria Zhaka, Vasiola Sand, Bjørnar 2019 application/pdf http://hdl.handle.net/11250/2640276 eng eng EU/Kolarctic CBC programme, Ice operations, 2/2017/064/KO2100 urn:issn:0376-6756 http://hdl.handle.net/11250/2640276 cristin:1733319 2019-June Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions Ice properties Brash ice Field test Peer reviewed Journal article 2019 ftsintef 2021-08-04T11:59:32Z The behavior and properties of brash ice are important issues for the design of ice-going vessels. Heavy brash ice conditions may cause vessels to be dependent on ice-breaker assistance and time delays in the shipping schedule. Brash ice properties are not well studied and full-scale field data are missing in order to verify numerical models on brash ice and broken sea ice in general. The recent study describes new field equipment for testing brash ice and its functionality is tested on brash ice produced by the Swedish Ice-breaker Oden during ice management operations in the Barents Sea. The equipment consists of a big collector, connected to a crane, which is lowered below the brash ice cover. The brash ice mass above is pulled up by the crane and the force required for pulling is measured. A series of 18 field tests were performed and presented. Strengths and weaknesses of the method were evaluated. Ice blocks sizes were measured. The peak load during pull-up was often at least twice the weight of the lifted ice blocks when the blocks were interlocked. For free floating blocks, the peak load conformed to the weight of the blocks. publishedVersion Article in Journal/Newspaper Arctic Barents Sea Sea ice SINTEF Open (Brage) Barents Sea Breaker ENVELOPE(-67.257,-67.257,-67.874,-67.874) |
institution |
Open Polar |
collection |
SINTEF Open (Brage) |
op_collection_id |
ftsintef |
language |
English |
topic |
Ice properties Brash ice Field test |
spellingShingle |
Ice properties Brash ice Field test Bonath, Victoria Zhaka, Vasiola Sand, Bjørnar Field measurements on the behavior of brash ice |
topic_facet |
Ice properties Brash ice Field test |
description |
The behavior and properties of brash ice are important issues for the design of ice-going vessels. Heavy brash ice conditions may cause vessels to be dependent on ice-breaker assistance and time delays in the shipping schedule. Brash ice properties are not well studied and full-scale field data are missing in order to verify numerical models on brash ice and broken sea ice in general. The recent study describes new field equipment for testing brash ice and its functionality is tested on brash ice produced by the Swedish Ice-breaker Oden during ice management operations in the Barents Sea. The equipment consists of a big collector, connected to a crane, which is lowered below the brash ice cover. The brash ice mass above is pulled up by the crane and the force required for pulling is measured. A series of 18 field tests were performed and presented. Strengths and weaknesses of the method were evaluated. Ice blocks sizes were measured. The peak load during pull-up was often at least twice the weight of the lifted ice blocks when the blocks were interlocked. For free floating blocks, the peak load conformed to the weight of the blocks. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Bonath, Victoria Zhaka, Vasiola Sand, Bjørnar |
author_facet |
Bonath, Victoria Zhaka, Vasiola Sand, Bjørnar |
author_sort |
Bonath, Victoria |
title |
Field measurements on the behavior of brash ice |
title_short |
Field measurements on the behavior of brash ice |
title_full |
Field measurements on the behavior of brash ice |
title_fullStr |
Field measurements on the behavior of brash ice |
title_full_unstemmed |
Field measurements on the behavior of brash ice |
title_sort |
field measurements on the behavior of brash ice |
publishDate |
2019 |
url |
http://hdl.handle.net/11250/2640276 |
long_lat |
ENVELOPE(-67.257,-67.257,-67.874,-67.874) |
geographic |
Barents Sea Breaker |
geographic_facet |
Barents Sea Breaker |
genre |
Arctic Barents Sea Sea ice |
genre_facet |
Arctic Barents Sea Sea ice |
op_source |
2019-June Proceedings - International Conference on Port and Ocean Engineering under Arctic Conditions |
op_relation |
EU/Kolarctic CBC programme, Ice operations, 2/2017/064/KO2100 urn:issn:0376-6756 http://hdl.handle.net/11250/2640276 cristin:1733319 |
_version_ |
1766296130885255168 |