中广核浙江三澳核电项目3号机组主体工程正式开工

Core Insights - The Zhejiang San'ao Nuclear Power Project's Unit 3 has commenced the first concrete pouring for the nuclear island, marking the official start of the main construction phase [1] - This project is notable as the first nuclear power project in China with private capital participation, utilizing the "Hualong One" third-generation nuclear technology [1] - Upon completion, the unit is expected to generate an annual electricity output of 10 billion kilowatt-hours, sufficient to meet the annual electricity needs of approximately 1 million people [1] Group 1 - The total volume of concrete for this pouring is approximately 8,820 cubic meters, expected to last for 57 hours [1] - The project team has implemented various advanced technologies and optimized designs to ensure high-quality progress at critical milestones [1] - Innovative construction techniques such as modular retaining walls and post-embedded methods have been successfully applied, with plans to introduce 18 additional advanced construction technologies [1][2] Group 2 - A significant innovation in this construction is the use of removable prefabricated retaining wall structures, which is the first application of this technology in the "Hualong One" units [2] - The retaining wall, measuring approximately 62 meters in length, has led to cost savings of about 800,000 yuan and a reduction in construction time by approximately 10 days [2] - The project is progressing well, with Unit 1 having completed nuclear safety checks and entering the fuel loading preparation phase, while Unit 2 is in the hot testing preparation stage [2]