海上60m非通航段墩柱整体预制施工工艺

Construction Technique of Pier Integral Precasting during the 60 m Innavigable Section at the Sea

海上墩柱整体预制吊装在我国第一座外海桥梁东海大桥非通航段施工中得以研究和全面应用。以海上60 m非通航段为工程背景,介绍了墩柱整体预制和陆上运输环节,大型墩柱整体预制的总体布置,墩身预制方案,设备配置,墩身分节,模板设计,海工高性能混凝土施工性能试验和浇筑措施,陆上运输吊具吊架设计等。经施工实践,该施工工艺取得了很好的效果。

The technique of pier integral precasting at the sea was researched and applied in the innavigable section construction of Donghai Bridge(the first bridge at the sea in China).With the background of the 60 m innavigable section at the sea,several construction elements were introduced including pier integral precasting,land transportation,the overall installment of large type pier integral precasting,its plan and mould design,marine high performance concrete test and its casting measures,etc.The construction technique has got great effects with the practice.