To improve the safety of the pipelines,the stress analysis is necessary when the temperature of the buried circulating water pipelines was high,especially in cold area.This paper took one oversea petroleum plant located at cold area for example,use CAESAR Ⅱ software to analyze the stress of the buried circulating water pipelines.The results show that the secondary stress has problem.And one specific soft material was used to eliminate the secondary stress,satisfying the requirement.This paper has preference function on the stress analysis of buried circulating water pipeline,and supplied one new material for solving the secondary stress of buried circulating water pipelines.
关键词
寒冷地区/埋地循环水管道/应力分析
Key words
cold area/buried circulating water pipelines/stress analysis