自贸港重点项目假日加速建设

Group 1: Key Projects in Hainan Free Trade Port - The construction of key projects in Hainan Free Trade Port is accelerating during the "May Day" holiday, with significant progress being made on multiple fronts [1][2] - The expansion of Sanya Phoenix International Airport is a major focus, with the T3 terminal's construction advancing, including 55% completion of the external curtain wall and 65% of the electromechanical installation [1] - The Jin Cheng·Jin Dian Water Front urban renewal project in Haikou is nearing completion, with the main structure fully capped and set to launch in June [2] Group 2: Infrastructure Development - The Hainan 500kV main grid project is underway, with over 300 kilometers of transmission line construction completed and more than 80% of the tower installation finished [2][3] - The project involves an investment of approximately 5.7 billion yuan, including the construction of three substations and about 838 kilometers of transmission lines [2] - The construction of the provincial grain storage facility is also progressing, with over 420 workers on-site and the first dome structure expected to be capped by the end of May [3][4] Group 3: Technological and Operational Advancements - The projects are utilizing mechanization and digital technology to enhance construction efficiency and safety, ensuring timely completion [3] - The grain storage project features China's first "silo machine" developed by China State Construction Engineering Corporation, marking a significant advancement in grain storage technology [4]