超硬质海床海管稳定性及安装技术

Subsea pipeline stability and installation in stiff seabed

超硬质海床土壤特性复杂,海管在超硬质海床上稳定性需求高,安装困难,针对这些特点深入研究了海管设计中常用的三种稳定性分析方法,并推荐了适用于超硬质海床的力平衡稳定性分析方法;介绍了大壁厚混凝土配重管安装设计和浮筒辅助安装方法,可为类似海洋工程项目稳定性设计和安装施工作业提供借鉴。

Many special characters are included in stiff seabed:complexity of soil character,high stability requirement and difficult installation.Three common analysis methods of subsea pipeline stability in subsea pipeline design were deeply studied,and the force balance stability method was recommended for stiff seabed.Meanwhile,the installation design and assistant installation means of heavy concrete coated pipeline were introduced.The experience should be shared with similar projects in the future.