Core Viewpoint - During the National Day and Mid-Autumn Festival holidays, construction on six high-speed rail projects in Sichuan continues without interruption, with over 30,000 workers dedicated to advancing the projects [1]. Group 1: Project Progress - The construction of the Xining to Chengdu high-speed railway has made significant progress, with the completion of the last box girder on the 12-kilometer Hequzi Bridge, marking a key milestone [3]. - The overall progress of the Sichuan section of the Xining to Chengdu railway is at 45%, with 6 out of 14 tunnels completed, 88% of bridge works finished, and 70% of the roadbed works completed [3]. - The Chengdu North Station expansion project is actively progressing, with all personnel on-site to ensure the second phase of the station renovation is executed smoothly [4]. Group 2: Construction Techniques and Innovations - The construction site of the Xuyou high-speed railway employs intelligent production lines, achieving standardization of processes, automation of equipment, and visualization of management [4]. - The Xuyou high-speed railway project has completed 407 box girder pre-casts and 329 girder installations, representing 65% and 53% of the total, respectively [4]. - The Yukun high-speed railway's construction is entering a critical phase, with 99% of box girder installations completed and all main tunnel and bridge works finished [6].

Core Points - The Rui-Mei Railway's Panshan'an Tunnel, located in Anyuan County, Ganzhou City, Jiangxi Province, has a maximum burial depth of 332 meters and is the first long tunnel to be completed along the entire Rui-Mei Railway line [1] - As of now, the construction progress of the Rui-Mei Railway's Jiangxi section has exceeded 84% for tunnel engineering, over 82.6% for bridge engineering, and over 81.7% for roadbed engineering [1] - The total tunnel excavation completed for the Jiangxi section of the Rui-Mei Railway is 76,422 meters, with bridge construction completed at 26,502 meters and earthwork for the roadbed reaching 14.2576 million cubic meters [1] - The Rui-Mei Railway connects Ruijin in Jiangxi and Meizhou in Guangdong, with a total length of 240.29 kilometers and a designed speed of 160 kilometers per hour [1]