摘要
基于硬质海床特性研究动态稳定性分析原理和流程。采用静态稳定性分析方法对管缆稳定性进行初筛,对无法保持绝对稳定的管缆进行动态稳定性分析。使用有限元技术对脐带缆进行动态稳定性分析并对比分析结果。研究结果表明动态稳定性分析方法可精确分析管缆在海床上的位移和受力情况,适用于评估硬质海床等特殊土质条件下的管缆稳定性。同时针对硬质海床特性介绍工程中常用的管缆增稳措施。
The theory and process of dynamic stability analysis are studied based on hard seabed.The static stability analysis method is used to preliminarily screen the stability of the subsea pipeline and cable,and the dynamic stability analysis is used for the pipeline and cable which can not maintain absolute stability.The finite element method is used for the dynamic stability analysis of the umbilical cable,and the analysis results are compared.The analysis results show that the displacement and force condition can be estimated exactly by dynamic stability method,which is suitable for hard seabed and other specific soil.In the meantime the commonly used stabilization measures of the subsea pipeline and cable in engineering are introduced according to the characteristics of hard seabed.
作者
夏日长
邓合霞
李庆
张东卫
崔少敏
XIA Richang;DENG Hexia;LI Qing;ZHANG Dongwei;CUI Shaomin(China Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China)
出处
《中国海洋平台》
2022年第3期50-55,共6页
China offshore Platform
关键词
硬质海床
管缆
动态稳定性
hard seabed
pipeline and cable
dynamic stability
