超大管径海底管道长距离岸拖及复杂海况下水平口对接施工技术
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摘要
浙江舟山大陆引水三期工程项目面临超大外径(1.228m)海底管道长距离(1.2km)岸拖以及复杂海况下(水深12.2m,流速1.5～2.0m/s)水平口对接和充水沉管等挑战。提出采用ABAQUS软件模拟岸拖过程中的管道力学状态,基于SACS软件进行限位桩设计,采用OFFPIPE软件进行水平口对接计算,采用AutoPIPE软件进行对接管道充水沉管分析等模拟计算方法,并创新采用了一种无安装残余应力的水平口对接方法,成功实现了该项目现场施工顺利完成,取得了良好的技术成果和经济效益。本文研究成果和施工经验可为后续超大管径海底管道长距离岸拖及水平口对接的设计、施工提供借鉴和参考。
The Third Stage of Zhoushan Water Diversion Project in Zhejiang Province faces the challenges of long distance(1.2km)shore towing of super-large outer diameter(1.228m)submarine pipeline,the tie-in operation under complex sea conditions(water depth of 12.2m,and flow velocity of 1.5～2.0m/s)and the water-filled immersion pipe.The ABAQUS software was used to simulate the mechanical state of pipeline during the process of shore towing,the SACS software-based limit pile design was adopted,and the OFFPIPE software was applied to calculate the tie-in operation.The AutoPIPE software was used to conduct simulations and calculations such as the water-filled immersion pipe analysis of docking pipeline,and an innovation residual stress-free tie-in method was proposed,which ensured the successful on-site construction of this project,and achieved good technical and economic benefits.The research results and construction experiences in this paper will be of great significance and reference for the subsequent long-distance shore towing of super-large outer diameter submarine pipeline,and the design and construction of tie-in operation.
The Third Stage of Zhoushan Water Diversion Project in Zhejiang Province faces the challenges of long distance(1.2km)shore towing of super-large outer diameter(1.228m)submarine pipeline,the tie-in operation under complex sea conditions(water depth of 12.2m,and flow velocity of 1.5～2.0m/s)and the water-filled immersion pipe.The ABAQUS software was used to simulate the mechanical state of pipeline during the process of shore towing,the SACS software-based limit pile design was adopted,and the OFFPIPE software was applied to calculate the tie-in operation.The AutoPIPE software was used to conduct simulations and calculations such as the water-filled immersion pipe analysis of docking pipeline,and an innovation residual stress-free tie-in method was proposed,which ensured the successful on-site construction of this project,and achieved good technical and economic benefits.The research results and construction experiences in this paper will be of great significance and reference for the subsequent long-distance shore towing of super-large outer diameter submarine pipeline,and the design and construction of tie-in operation.
引文
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[3]黄钰.超大管径海底管道长距离登陆拖拉技术研究[J].石油矿场机械,2017,46(5):67-71.HUANG Yu.Investigation of subsea pipeline landfall pulling technology for huge diameter and long distance[J].Oil Field Equipment,2017,46(5):67-71.
[4]高原,焦冬梅,桂津.大管径海管水面对接技术[J].中国造船,2008,49(2):569-574.GAO Yuan,JIAO Dongmei,GUI Jin.The surface tie-in technology of two large diameter submarine pipelines[J].Shipbuilding of China,2008,49(2):569-574.
[5]伦冠德,刘衍聪,伊鹏,等.海洋工程管道对接方法及技术[J].石油机械,2011,39(10):150-153.LUN Guande,LIU Yancong,YI Peng,et al.Tie-in method and technology of ocean engineering pipeline[J].China Petroleum Machinery,2011,39(10):150-153.
[6] McMASTER S Y,CAMPBELL D R.Pipeline shore approach design-case study[C].Proceedings of the ASME 2011 30th International Conference on Ocean,Offshore and Arctic Engineering,Rotterdam,2011:1-10.
[7] DNV.Rules for submarine pipeline systems[S].Norway,1981.
[8]竺艳蓉.海洋工程波浪力学[M].天津:天津大学出版社,1991:69-79.
[9] API.API RP 2A—2011Planning,designing and constructing fixed offshore platforms working stress design[S].Washington D C:API,2011.
[10]康荣玉,张凤连,李绂,等.一种无安装残余应力的海底管道海上水平口对接方法:中国,ZL 2013 1 0208351.7[P].2013-05-30.
[11]陈元,任润卯,于莉,等.特殊工况下铺管船锚泊及铺管关键技术研究与应用[J].石油管材与仪器,2017,3(3):38-44.CHEN Yuan,REN Runmao,YU Li,et al.Research and application of key technology of pipe-laying ship mooring and pipelaying in special working condition[J].Petroleum Tubular Goods&Instruments,2017,3(3):38-44.
[12]卢召红,高珊珊,于慧敏,等.水中悬浮管道的结构形式及受力特征分析[J].河北工程大学学报(自然科学版),2016,33(4):56-60.LU Zhaohong,GAO Shanshan,YU Huimin,et al.Analysis of structure and mechanical characteristic of submerged floating pipeline[J].Journal of Hebei University of Engineering(Natural Science Edition),2016,33(4):56-60.