SIGNIFICANCE OF TIDAL CHANGE ON ABRASION AREA OF STRUCTURES DUE TO SEA ICE MOVEMENT

When ice movement is very active, hydraulic structures in ice-covered areas suffer abrasion. Especially for offshore structures of reinforced concrete, it is necessary to determine the required cover thickness with high accuracy. This paper describes a method for estimating the size of the active ab...

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Bibliographic Details
Main Author: Takahiro Takeuchi Shinji Kioka
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Subjects:
KEY WORDS
Sea ice
Abrasion
Local ice pressure
Offshore structure
Tidal change
Sakhalin
ice covered areas
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.1727
http://web2.clarkson.edu/projects/iahrice/IAHR 2006/contents/57_s133.pdf
Description
Summary:When ice movement is very active, hydraulic structures in ice-covered areas suffer abrasion. Especially for offshore structures of reinforced concrete, it is necessary to determine the required cover thickness with high accuracy. This paper describes a method for estimating the size of the active abrasion area, considering local ice pressure distribution, change of water level due to tide, and scatter of physical properties of sea ice. Sample calculations are made for offshore structures in eastern Sakhalin under natural conditions.

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