安全壳底封头运输和吊装施工技术
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摘要
AP1000安全壳底封头CVBH的现场施工需要采用施工技术难度大、安全保证措施要求高的大件运输和吊装技术。主要表现在结构本体重量大、尺寸大、重心高、易于变形等;在运输过程中,转弯半径大、运输道路基础荷载大、运输车辆同步性要求苛刻;在吊装过程中,吊装场地基础荷载大、吊车吊装能力大、吊索具要求高、核岛就位难度高等。文章从CVBH运输施工技术、吊装施工技术以及安全保证措施等三个方面,详细阐述核岛大件运输和吊装施工技术,为后续的核岛大型结构的运输和吊装提供借鉴作用。
The challengeable transport and lifting techniques and high safety assurance measures are needed for the onsite construction of the AP1000 containment vessel bottom head(CVBH),which is a large component with heavy weight,big size,high center of gravity,and easy to deformation.During transport,the infrastructural road foundation is heavily loaded with big turning radius,and the requirement for synchronization of transport vehicles is strict.During lifting,the crane lifting capacities are high,requirement for the lifting and rigging tools is strict,nuclear island being put into place is difficult,and the crane operating foundation is heavily loaded.The transport and lifting techniques and safety assurance measures for CVBH are elaborated in detail,so as to provide a reference for the follow-up transport and lifting of large components of nuclear island.
The challengeable transport and lifting techniques and high safety assurance measures are needed for the onsite construction of the AP1000 containment vessel bottom head(CVBH),which is a large component with heavy weight,big size,high center of gravity,and easy to deformation.During transport,the infrastructural road foundation is heavily loaded with big turning radius,and the requirement for synchronization of transport vehicles is strict.During lifting,the crane lifting capacities are high,requirement for the lifting and rigging tools is strict,nuclear island being put into place is difficult,and the crane operating foundation is heavily loaded.The transport and lifting techniques and safety assurance measures for CVBH are elaborated in detail,so as to provide a reference for the follow-up transport and lifting of large components of nuclear island.
引文
[1]Westinghouse.AP1000 Design Control DocumentRev.16[R],May 2007.
[2]林诚格,郁祖盛,欧阳予.非能动安全先进核电厂AP1000[M].北京:原子能出版社,2008:190-195.(LIN Cheng-ge,YU Zu-sheng,OUYANG Yu.Passive Safety Advanced Nuclear Power PlantAP1000[M].Beijing:Atomic Energy Press,2008:190-195.)
[3]国核工程海阳SPMO.Project Report for theAssembly and Installation of Containment VesselBottom Head of Haiyang NPP#1 Unit Rev.0[R],March 2010.
[2]林诚格,郁祖盛,欧阳予.非能动安全先进核电厂AP1000[M].北京:原子能出版社,2008:190-195.(LIN Cheng-ge,YU Zu-sheng,OUYANG Yu.Passive Safety Advanced Nuclear Power PlantAP1000[M].Beijing:Atomic Energy Press,2008:190-195.)
[3]国核工程海阳SPMO.Project Report for theAssembly and Installation of Containment VesselBottom Head of Haiyang NPP#1 Unit Rev.0[R],March 2010.