东方13-2海洋平台装船关键受力工况分析

Load-out analysis of key load cases for DF 13-2 offshore platform

伴随海洋石油工业迅猛发展,海上平台正向大型化、集约化方向发展,平台上部组块的整体重量也随之增加,对海上超大型平台的装船技术及作业能力提出了更高的要求。针对东方13-2项目质量达17247 t(包含滑靴质量等)的13-2 CEPB平台拖拉装船进行了研究。为确保平台本身强度及陆地码头强度满足要求,根据东方组块装船的施工过程分为4种工况分别进行研究,分别为建造工况、重量转移工况、称重工况、拖拉滑移工况。首次结合不同载荷工况进行了码头及平台强度分析,确保平台本身强度及陆地码头强度满足要求。对载荷组合方法进行了定义,可为大型海洋平台建造后的装船设计提供依据,最终在珠海场地完成了东方13-2万吨级平台的装船。

With the rapid development of the offshore oil industry,offshore platforms are developing in the direction of large-scale and intensity,the overall weight of the topsides of the platform also increases,and the higher requirements on load-out technology and operational capabilities of super large offshore platforms are put forward.The research of load-out of the platform weighing 17247 t(including the weight of shoes,etc.)of the DF 13-2 project ware carried out.To ensure that the strengths of the platform itself and the quay meet the requirements,the load-out process of the DF 13-2 CEPB platform was studied in four cases respectively,which ware construction case,weight transfer case,weighing case and load-out case.For the first time,the strength analysis of the quay and platform was carried out under different load conditions to ensure that the strengths of platform itself and quay meet the requirements.The load combination method is defined,which can provide the basis for the load-out design after the large offshore platform constructed.Finally the load-out of the DF 13-2 platform was completed at Zhuhai quayside.