RESEARCH AND APPLICATION OF NEW SUPPORT SYSTEM CONSTRUCTION TECHNOLOGY FOR CAISSON BOTTOM CORE FORMWORK
With the development of large-scale and deep-water ports and docks,the size of caissons is getting larger and larger.Caissons are mostly prefabricated in layers,and the bottom core formwork support system adopts a bottom large plate and lifting frame structure.The upper and lower parts of the lifting frame are connected to the bottom core formwork through connectors.The installation of the bottom core formwork requires pre assembly and forming on a specially designed assembly frame,and then using steel welding reinforcement technology,During the template removal process,the bottom plate is bonded to the concrete,making it difficult to remove.Ajack is required to remove the bottom plate,which is a cumbersome process,low construction efficiency,and high safety risk.The prefabrication construction of the caisson in this project has optimized and innovated the traditional construction technology of the caisson bottom core mold,achieving structural optimization of the caisson bottom core mold and innovative installation and removal processes,greatly improving construction efficiency and quality,reducing construction costs and safety risks,and providing reference experience for future construction of such projects.