安全壳底封头运输和吊装施工技术

Containment Vessel Bottom Head Transport and Lifting Technique

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 neededfor 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 tuming radius, and the requireraent for synchronization of transport vehicles is strict. During strict, the crane lifting capacities are high, requirement for the lifting and rigging tools is strict, nuclear island being put into place is difficuit, 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 liking of large components of nuclear island.