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中文摘要：
在进行水平式铺设时,柔性管道的上弯段将受到显著的接触荷载,导致管道的挤压失效,从而限制了这种铺设方式所能达到的水深。因此,对柔性管道铺设上弯段的接触荷载进行准确估计具有重要的工程意义。对上弯段接触荷载进行理论研究,推导了简化的计算公式,并采用数值仿真技术研究了铺设工况下影响接触荷载大小的关键参数,以指导柔性管道铺设的上弯段接触荷载的分析,并为铺设设计提供参考。
英文摘要：
The over-bend of the flexible pipe will be subjected to obvious contact load during horizontal laying and failure may occur because of crushing.This usually restricts the application of horizontal laying in deep water. Therefore,it is significant to accurately estimate the contact load on the over-bend of the flexible pipe during laying. We carry out theoretical research on the over-bend contact load,deduce a simplified calculation formula,and investigate the key parameters which affect the contact load in the laying cases by numerical simulation.The results can offer a specific guidance for the over-bend contact load analysis in flexible pipe laying,and provide a reference for the laying design as well.
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