我国在建海拔最高双曲拱坝电站首批坝段浇筑到顶

Core Insights - The construction of the Yebatang Hydropower Station, the highest hyperbolic arch dam in China, has reached a significant milestone with the first batch of dam segments poured to the design elevation of 2894 meters, progressing towards the goal of commissioning the first units by the end of 2025 [1][5] Group 1: Project Overview - The Yebatang Hydropower Station has a total installed capacity of 2.24 million kilowatts, with a maximum dam height of 217 meters and a top arch length of 582 meters, consisting of 27 dam segments [3][5] - The total volume of concrete required for the dam is approximately 2.63 million cubic meters, utilizing four 30-ton cable cranes for the pouring process [3][5] Group 2: Construction Achievements - Since the initiation of the first concrete pouring in August 2022, the project has implemented a management model that includes leadership oversight and specialized responsibilities, leading to significant improvements in construction efficiency [3][5] - The project has achieved a record daily concrete pouring of 6493.5 cubic meters and a monthly total of 130,000 cubic meters, resulting in a 6.4-month advancement in the construction schedule [3][5] Group 3: Technical Innovations - The project has addressed the challenges of high-altitude and cold weather construction by developing key technologies such as temperature-controlled concrete pouring and winter insulation methods, enabling year-round continuous pouring without temperature cracks [5] - The Yebatang Hydropower Station is the first in China to achieve seamless dam construction in high-altitude cold regions, laying a solid foundation for future projects [5] Group 4: Environmental Impact - Upon full completion, the hydropower station is expected to generate an average annual output of 10.205 billion kilowatt-hours, saving 3.99 million tons of standard coal and reducing carbon dioxide emissions by 7.37 million tons each year [5]