In the challenging landscape of cold regions, where temperatures can plummet and freeze-thaw cycles wreak havoc on infrastructure, a groundbreaking study sheds light on the critical importance of temperature control during the construction of large-volume concrete gravity dams. Conducted by Ziyu Lv and his team at the State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, this research offers vital insights that could reshape how the energy sector approaches dam construction in frigid environments.
The study focuses on the Guanmenzuizi Reservoir Dam, employing advanced numerical simulations to predict temperature and stress fields within the dam body. “Our findings illustrate how ambient temperature significantly impacts the structural integrity of concrete dams,” says Lv. “By implementing targeted temperature control measures, we can effectively mitigate the risks of cracking and ensure the longevity of these critical infrastructures.”
As the energy sector continues to invest in dam construction, particularly in cold regions where over 60% of China’s dams are located, the implications of this research are profound. The study highlights that the internal temperature of the dam peaks about seven days post-pouring, followed by fluctuations that lag behind ambient conditions. This dynamic necessitates innovative strategies to manage temperature effectively during construction.
The research also explores the influence of cooling water pipe density on the dam body, emphasizing that a well-planned layout can significantly reduce tensile stress. “The practical application of our temperature control measures not only enhances the structural safety of dams but also optimizes resource allocation during construction,” Lv explains. This could lead to cost savings and improved project timelines, making the construction of energy-generating dams more viable and efficient.
The findings are particularly relevant as the energy sector seeks to balance the demands of infrastructure development with environmental sustainability. By employing effective temperature control strategies, companies can ensure that their projects not only withstand the rigors of cold climates but also operate efficiently over the long term.
The research was published in the journal ‘Water’, offering a comprehensive look at the feasibility of temperature control measures for concrete gravity dams in cold regions. This study stands as a valuable reference for future projects, potentially influencing the establishment of temperature control standards that could enhance the safety and performance of dams worldwide.
For those interested in the technical aspects of this research, more information can be found at the State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin. As energy companies navigate the complexities of construction in adverse weather conditions, insights like these could pave the way for safer, more resilient infrastructures that meet the growing energy demands of the future.
