Local scour and scouring protection of drilling platforms in the arctic sea environment
Placing an obstruction, such as for instance an artificial island platform, on the sea bottom will cause a disturbation in the bottom equilibrium. As a result a local scour-deposit phenomenon may occur, which especially in sandbottoms can significantly reduce the stability of platform and cause nonu...
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VTT Technical Research Centre of Finland
1983
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ftvttcrispub:oai:cris.vtt.fi:publications/c97805b0-fad5-475f-aeef-ee1773d6cd73 2023-05-15T14:23:21+02:00 Local scour and scouring protection of drilling platforms in the arctic sea environment Rytkönen, Jorma 1983 https://cris.vtt.fi/en/publications/c97805b0-fad5-475f-aeef-ee1773d6cd73 eng eng VTT Technical Research Centre of Finland info:eu-repo/semantics/restrictedAccess Rytkönen , J 1983 , Local scour and scouring protection of drilling platforms in the arctic sea environment . Valtion teknillinen tutkimuskeskus. Tiedotteita , no. 267 , VTT Technical Research Centre of Finland , Espoo . book 1983 ftvttcrispub 2022-10-13T13:57:48Z Placing an obstruction, such as for instance an artificial island platform, on the sea bottom will cause a disturbation in the bottom equilibrium. As a result a local scour-deposit phenomenon may occur, which especially in sandbottoms can significantly reduce the stability of platform and cause nonuniform stress distributions under the platform base. An increase of stresses over the design value may, in extreme cases, cause the failure of a whole structure. Being aware of the scouring phenomenon and undertaking the scouring protection measures already before the platform installation is in general more feasible than to try to repair damages afterwards. In the paper the local scouring due to waves and currents near the toe of gravity platforms is described. The description concentrates mainly on the artificial gravity platforms in the shallow waters (water depth ~ 10 -30 m). Scouring phenomenon and scouring protection measures are described on the basis of the available literature on the subject. Moreover some speculations concerning the model testing procedures are presented, too. Book Arctic Arctic VTT's Research Information Portal Arctic The Toe ENVELOPE(-59.167,-59.167,-62.333,-62.333) |
institution |
Open Polar |
collection |
VTT's Research Information Portal |
op_collection_id |
ftvttcrispub |
language |
English |
description |
Placing an obstruction, such as for instance an artificial island platform, on the sea bottom will cause a disturbation in the bottom equilibrium. As a result a local scour-deposit phenomenon may occur, which especially in sandbottoms can significantly reduce the stability of platform and cause nonuniform stress distributions under the platform base. An increase of stresses over the design value may, in extreme cases, cause the failure of a whole structure. Being aware of the scouring phenomenon and undertaking the scouring protection measures already before the platform installation is in general more feasible than to try to repair damages afterwards. In the paper the local scouring due to waves and currents near the toe of gravity platforms is described. The description concentrates mainly on the artificial gravity platforms in the shallow waters (water depth ~ 10 -30 m). Scouring phenomenon and scouring protection measures are described on the basis of the available literature on the subject. Moreover some speculations concerning the model testing procedures are presented, too. |
format |
Book |
author |
Rytkönen, Jorma |
spellingShingle |
Rytkönen, Jorma Local scour and scouring protection of drilling platforms in the arctic sea environment |
author_facet |
Rytkönen, Jorma |
author_sort |
Rytkönen, Jorma |
title |
Local scour and scouring protection of drilling platforms in the arctic sea environment |
title_short |
Local scour and scouring protection of drilling platforms in the arctic sea environment |
title_full |
Local scour and scouring protection of drilling platforms in the arctic sea environment |
title_fullStr |
Local scour and scouring protection of drilling platforms in the arctic sea environment |
title_full_unstemmed |
Local scour and scouring protection of drilling platforms in the arctic sea environment |
title_sort |
local scour and scouring protection of drilling platforms in the arctic sea environment |
publisher |
VTT Technical Research Centre of Finland |
publishDate |
1983 |
url |
https://cris.vtt.fi/en/publications/c97805b0-fad5-475f-aeef-ee1773d6cd73 |
long_lat |
ENVELOPE(-59.167,-59.167,-62.333,-62.333) |
geographic |
Arctic The Toe |
geographic_facet |
Arctic The Toe |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Rytkönen , J 1983 , Local scour and scouring protection of drilling platforms in the arctic sea environment . Valtion teknillinen tutkimuskeskus. Tiedotteita , no. 267 , VTT Technical Research Centre of Finland , Espoo . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766295905913274368 |