کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8065861 1520695 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact forces of submarine landslides on offshore pipelines
ترجمه فارسی عنوان
نیروهای ضربه ای از زمین لغزش زیردریایی در خطوط دریایی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
Impact forces induced by submarine landslides on pipelines are estimated using a computational fluid dynamics (CFD) approach. It is found that the predicted forces using the CFD approach are consistent with those predicted using the conventional geotechnical approach. It is also found that the impact angle of the debris flow induced by landslides affects the normal drag factor but hardly has any effect on the longitudinal drag factor. Empirical formulae for estimating normal and axial impact forces on a free spanned pipeline induced by an oblique debris flow are developed based on numerical test results. A new failure envelope that can be used in conventional geotechnical approaches is also obtained based on the numerical test results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 95, 1 February 2015, Pages 116-127
نویسندگان
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