By innovatively adopting industrial construction techniques, the supporting main building of the No. 2 desalinated water station for Fujian Fuhai Chuang Petrochemical’s raw material adaptation upgrade project was constructed in a sequential manner

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On March 7, the main building of the No. 2 desalinated water station, which is part of the Fujian Fuhaichuang petrochemical raw material adaptation improvement project, was successfully completed; 78 precast concrete double T-shaped panels were accurately installed in place, marking an important breakthrough in the project’s construction. This project innovatively adopts industrialized construction techniques, significantly improving construction efficiency and project quality. As a key component in precast concrete, the double T slab achieves a perfect balance between high strength and light weight thanks to its double T-shaped cross-section design, making it more competitive than traditional methods. Compared to concrete roof casting, its factory prefabrication and on-site assembly approach eliminates the need for formwork setup and curing, reducing the construction time by 40% and cutting construction dust and construction waste by 80% ； Compared to steel structure roofs, concrete is resistant to corrosion and suitable for coastal areas with high salt fog levels; it also integrates structural support, pipeline embedding, and insulation functions. Furthermore, the large-span column-free design maximizes the space utilization of the factory, facilitating the flexible layout of intelligent production lines. A 260-ton truck crane was used for this lifting operation. By optimizing the transportation routes and implementing a three-dimensional positioning system, the project team managed to accurately install 78 pieces of double T-shaped plates, each weighing 18 tons, within five days, thereby demonstrating the advantages of industrial construction techniques.