The main structures of the circulating water cooling tower and silo for the Xindu Chemical Project in Yingcheng, Hubei, have been completed
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At the Xindu Chemical Project site in Yingcheng, Hubei, with the goal of achieving the annual targets with high quality, the project team focused on the key pathways and pursued technological innovation, making a series of breakthroughs in key areas such as the circulating water cooling towers and silo projects, thus laying a solid foundation for the efficient progress of the entire project.
Faced with the challenges of a tight schedule and heavy workload, the project team took the decisive measure of \"supporting the upper structure directly without removing the lower formwork\" during the construction of the circulating water cooling tower structure. This innovation effectively overcomes the limitations of the traditional layer-by-layer construction approach, enabling continuous work on vertical structures. The construction period was significantly reduced: the technical delays between different layers and the time required for form removal were eliminated, resulting in an increase in construction efficiency of around 30%. This gained valuable time for subsequent work steps, making it a key factor in ensuring the achievement of annual goals. Effective improvement in quality: The number of construction joints has been reduced, enhancing the integrity and density of the tower structure. Both the visual appearance and internal quality of the concrete have improved, which effectively reduces the risk of leakage. Dual control of cost and safety: It reduces the labor and mechanical efforts required for repeated installation and removal of templates, thereby lowering costs ； At the same time, it reduced the frequency of formwork removal at high heights, significantly lowering safety risks and enabling simultaneous progress in cost reduction, efficiency improvement, and safety management. In the construction of large silo projects, this innovative method of \"slowly bonding prestressed steel strands\" was successfully applied. This technology combines the advantages of bonded and unbonded prestressing: it is easy to lay and tension, just like unbonded tendons, during the early stages of construction; after a certain period of time, the special adhesive used to cover it cures, thereby permanently bonding the prestressed tendon to the concrete as one unit. Technical superiority ensures structural performance: it effectively addresses the challenges related to crack resistance and durability of large-diameter, thick-walled silos under high lateral pressures, thereby significantly enhancing the overall stiffness, crack resistance, and service life of the structure. Easy to construct with high precision: It eliminates complex processes such as pre-drilling holes and grouting, simplifying the procedure; it prevents common quality issues like hole blockages and inadequate grouting at the source, and ensures more precise and reliable tension control. The comprehensive benefits are significant: while ensuring a substantial improvement in project quality, its ease of construction helps to shorten the project timeline and reduce potential maintenance costs, thereby yielding outstanding technical, economic, and social benefits.
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