含腐蚀凹坑海底管道剩余强度评价方法分析  

Analysis of Residual Strength Evaluation Method for Submarine Pipelines with Corrosion Pits

作　　者：杨小乐 万宇飞 吴景健 赵铭文 梁鹏 YANG Xiao-le;WAN Yu-fei;WU Jing-jian;ZHAO Ming-we;LIANG Peng(Tianjin Branch of CNOOC Limited,Tianjin 300452,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300452

出　　处：《船海工程》2025年第1期171-174,180,共5页Ship & Ocean Engineering

基　　金：“十三五”国家科技重大专项(2016ZX05058-004-001)。

摘　　要：为计算含腐蚀坑海底管道的剩余强度,分析海底管道剩余强度评价方法,对海底管道施加内压和轴向力,从行业标准、美国工程师协会规范、挪威船级社规范和有限元计算4方面对海底管道腐蚀坑的剩余强度进行计算,分析几种方法的差异,结果显示,当深度较浅时,采用理论计算的方式更加保守;当缺陷深度较大时,建议采用有限元的方法。In order to calculate the residual strength at the corrosion pit of the submarine pipeline,the evaluation method of the residual strength of the submarine pipeline was analyzed and studied.The internal pressure and axial force were applied to the submarine pipeline,the results showed that when the depth is shallow,the theoretical calculation method is more conservative;when the defect depth is large,it is recommended to use the finite element method,which provides a reference for the safety assessment of corroded submarine pipelines.

关 键 词：海底管道 剩余强度 评价方法 有限元 

分 类 号：U661.43[交通运输工程—船舶及航道工程]