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首页> 外文期刊>Applied Ocean Research >Thermo-mechanical walking of straight and continuous-snake-laid pipelines on sloping seabeds
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Thermo-mechanical walking of straight and continuous-snake-laid pipelines on sloping seabeds

机译：在倾斜海床上的直连蛇形管道的热机械行走

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摘要

Subsea pipeline design is very much affected by high temperature and pressure loading. Repeated start-up/shut-down cycles throughout the system lifetime impose longitudinal movements that is known as walking. The walking phenomenon as a significant criterion for thermo-mechanical design of subsea pipelines is addressed in this paper. The continuing axial movement of a pipeline may lead to structural failure. Susceptibility to walking of a typical short length flowline is assessed during pipeline design; for example, pipelines installed on diverse seabed topographic conditions such as different angles and lengths of sloping seabed. FE analyses are commonly carried out accounting for pipe-soil interaction (PSI) response to ensure acceptable pipeline performance in a realistic operational situation. An analytical solution method is available to provide suitable estimation for robust design.
机译：海底管道设计受到高温和压力负荷的影响非常严重。 在整个系统寿命中重复的启动/关闭周期施加着称为行走的纵向运动。 本文解决了作为海底管道热机械设计的重要标准的行走现象。 管道的继续轴向运动可能导致结构故障。 在管道设计期间评估对典型短长度流线的易感性; 例如，管道安装在不同的海底地形条件下，例如不同的角度和倾斜海床的长度。 FE分析通常进行了管道土相互作用（PSI）响应的核算，以确保在现实的运营情况下可接受的管道性能。 分析解决方案方法可提供适当的鲁棒设计估计。

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