کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8066503 | 1520718 | 2013 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wave-induced multi-layered seabed response around a buried pipeline
ترجمه فارسی عنوان
واکنش دریا چند لایه ناشی از یک موج خطی در اطراف یک خط لوله خالی
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کلمات کلیدی
دریایی متخلخل چند لایه خط لوله، تبدیل به مایع،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی دریا (اقیانوس)
چکیده انگلیسی
The subject of the wave-seabed-structure interaction is important for geotechnical and coastal engineering regarding stability analysis of foundations for offshore structures. Most previous theoretical investigations available concerned only with such a pipeline in a uniform single layer seabed. In this paper, a wave-seabed-pipeline system is modeled using finite elements. The seabed is treated as porous medium and characterized by Biot's dynamic equations. To explore the mechanism of the seabed instability, the two possible formulations: partly dynamic (u-p model) and fully dynamic (u-w model) for the wave-induced seabed response are considered. Verification of the proposed model is performed against the previous analytical result and experimental data. Based on the numerical results, the effects of wave and seabed characteristics, such as water depth, permeability, shear modulus, degree of saturation, and pipeline buried depth, on the wave-induced excess pore pressure and vertical effective stress will be examined. Finally, a parametric study will be conducted to examine the effects of wave and soil characteristics on the liquefaction potential. It is worth noting that soil permeability has a very significant influence on the pore pressure generation and liquefaction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 72, 1 November 2013, Pages 195-208
Journal: Ocean Engineering - Volume 72, 1 November 2013, Pages 195-208
نویسندگان
Xiang-Lian Zhou, Dong-Sheng Jeng, Yu-Guang Yan, Jian-Hua Wang,