摘要
海底管道在铺设和服役期间,如果处于不稳定的海床上,在波浪和水流冲击作用下会出现悬跨,从而使海底管道发生涡激振动、疲劳,或悬空长度过大导致断裂,发生重大海洋环境污染事故。论文介绍了海底管道悬跨产生的原因、评估方式、悬跨的危害及其处理方法,并对悬跨处理方法的适用性进行了分析。
While subsea pipelines lying or running, if the pipeline is on the instability subsea seabed, free span may be caused by the wave and current. As a result, the pipeline will librations, fatigue or rupture, if the free span is so long enough. It may cause sea environment pollution. This article outlines the reasons to cause the free span, evaluation methods, free span hazards and the disposals for the free span; it also summarizes the applications of the free span disposals.
出处
《中国造船》
EI
CSCD
北大核心
2012年第A02期74-81,共8页
Shipbuilding of China
关键词
海底管道
悬跨
处理
适用性
分析
subsea pipeline
free span
disposal
applicability
analyses
