受限海域海底管道S型起始铺设安装分析
Analysis of initial laying of S-lay subsea pipeline in restricted sea area
程培亮 1尚敏 2梅致宇1
作者信息
- 1. 中国石油集团海洋工程有限公司,山东 青岛 266500
- 2. 天津中海林石油工程技术服务有限公司青岛分公司,山东 青岛 266500
- 折叠
摘要
为了在狭窄的码头边缘进行海底管道铺设,需要借助锚桩和码头系缆柱进行起始锚点的布设.结合某新建海底管道,研究了锚点位置、张紧器张力对管道响应的影响.结果显示:锚点位置对管道起始铺设响应的影响不明显,张紧器张力对锚点拉力影响显著.通过计算分析得出:该新建海底管道在起始铺设过程中上弯段和垂弯段的最大应力满足要求,使用系数小于0.87,最大弯曲应变小于0.205%;局部屈曲校核系数小于1,静态起始铺设分析满足规范要求,满足起始铺设施工要求.
Abstract
To lay the Marine pipe on the narrow edge of the wharf,it is necessary to lay the initial anchor points with the help of anchor piles and wharf tie posts.Based on a newly-built offshore pipeline,the influence of anchor position and tensioner tension on pipeline response was studied.The results show that the response of the anchor position to the initial laying of the pipeline is not obvious,while the tension of the tensioner has a significant effect on the tensile force of the anchor point.According to calculation and analysis,during the process of initial laying,the maximum stresses of the upper and lower bending sections met the requirement with a use coefficient lower than 0.87 and a maximum bending strain lower than 0.205%.With a local buckling check coefficient lower than 1,static initial laying analysis meets the code requirement and construction requirement of initial laying.
关键词
海底管道/起始铺设/受限海域/锚点/系缆柱/张紧器Key words
subsea pipeline/initial laying/restricted sea area/anchor point/tie up pillar/tensioner引用本文复制引用
出版年
2024
NETL
NSTL
万方数据