کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8906521 1634415 2018 49 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of pack ice pressure approaches and engineering implications for offshore structure design
ترجمه فارسی عنوان
ارزیابی رویکردهای فشار یخ بسته و مفاهیم مهندسی برای طراحی ساختار دریایی
کلمات کلیدی
بسته یخ، سازه های دریایی، بارهای یخی، مهندسی یخ، فشار یخ،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
A probabilistic model for ice forces on a caisson platform in the Beaufort Sea was used to evaluate two different approaches for describing pack ice pressure. The ridge-building equation in the ISO Arctic offshore structures standard was compared to a more recently derived exceedance curve (EC) approach. The results indicated that the EC approach yielded a wider range of pack ice pressures compared to ISO estimates; however, when these results were used to determine the ultimate ice force on the platform, the effect of the pack ice approach selected was minimal. The influence of floe size in affecting the pack ice pressure did not yield agreement amongst several data sets examined. Furthermore, the influence of adfreeze was examined but no definite relationship was quantified. The paper discusses the engineering implications of these results in the context of offshore structure design. When evaluating the ice loads at a candidate site for offshore development, relevant information on floe size distribution and pack ice thickness, concentration, and movement are required in order to assess the influence of pack ice pressure on design calculations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cold Regions Science and Technology - Volume 149, May 2018, Pages 71-82
نویسندگان
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