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首页> 外文会议>Pipeline Division Specialty Conference; 20050821-24; Houston,TX(US) >Wave induced uplift forces acting on half-buried submarine pipeline in sandy seabed by numerical methods
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Wave induced uplift forces acting on half-buried submarine pipeline in sandy seabed by numerical methods

机译：波浪作用下含沙海底半潜式海底管道的波升力

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In this paper, a two dimensional finite element (FEM) and boundary integral Equation methods (BIEM) are applied to determine the uplift forces on half-buried submarine pipeline in a sandy seabed. The main assumptions are potential flow theory for water and linear elastic stress-strain for soil and Darcy's law for pore fluid flow. Dynamic pressures around the pipe and uplift forces were calculated based on BIEM and FEM. Also dynamic uplift forces on pipeline with variable burial depths were calculated. The results of the numerical approach are compared with some analytical formulation based on potential flow theory and experimental data, and it is shown good agreement with both analytical and experimental data. Then, the main parameters of this problem have been discussed in relation to uplift forces.
机译：本文采用二维有限元（FEM）和边界积分方程（BIEM）方法确定沙质海底半埋式海底管道上的上升力。主要假设是水的潜在流动理论和土壤的线性弹性应力应变，以及孔隙流体流动的达西定律。基于BIEM和FEM计算了管道周围的动态压力和提升力。还计算了具有不同埋深的管道上的动态抬升力。将该数值方法的结果与基于势流理论和实验数据的一些分析公式进行了比较，并与分析和实验数据均显示出良好的一致性。然后，已经讨论了与提升力有关的该问题的主要参数。

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