在役导管架平台的评估策略研究现状

State of Art Review of Reassessment of Existing Offshore Jacket Platform for Life Extension

海洋平台造价昂贵,所处的海洋环境复杂且恶劣,受到波浪、流、风、冰、地震以及疲劳、腐蚀、冲刷等时变因素的联合作用,检测和维修困难,事故后果严重,所以,为延长在役导管架平台的寿命而进行的评估研究存在许多难题需要解决。针对近海导管架平台评估标准、检测策略、构件校核、系统分析、维修加固决策和方法等,介绍了国内外的研究现状,并展望了将来需要进一步开展的工作。

The costly offshore platforms located in complex and severe ocean conditions might be under the combination effects of extreme loads such as wave,current,wind,ice,earthquake,and time-variant factors such as fatigue,corrosion and scouring.The difficulties of inspection and maintenance result in lots of problems,which should be researched in the field of reassessment and life extension on offshore jacket platforms.The review of assessment criteria,inspection strategy,component check,system evaluation,maintenance making-decision and strengthening methods is introduced in the paper.Meanwhile,the further works are proposed.