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Application of Ice/Structure Interaction Concepts to a Real Time Ice Risk Assessment Computer Model

by Denis Blanchet, Canadian Marine Drilling Ltd, Calgary, Canada,



Document Type: Proceeding Paper

Part of: Cold Regions Engineering

Abstract:

The successful and safe operation of an Arctic offshore exploration structure greatly depends on the implementation of alerts procedures. In order to assess alerts levels, a computer model has been developed. The model performs real-time calculations of the following engineering risks for each hazardous ice floe which could potentially interact with an offshore structure: (i) the probability of an impact by an ice floe; (ii) the risk associated with the exceedence of the foundation resistance assuming that the ice floe will hit the structure; and (iii) the combination of the above risks and comparison with a threshold or target risk in order to evaluate the levels of alerts. This paper focuses on the section of the computer model dealing with the risk of foundation failure (step (ii) above).

Subject Headings: Offshore structures | Computer models | Ice | Risk management | Structural analysis | Failure analysis | Structural models | Arctic

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