Core Insights - Multiple high-speed rail projects in Sichuan are progressing steadily during the National Day holiday, with over 30,000 construction workers on site [1][2] - Significant advancements have been made in the construction of the Xining to Chengdu high-speed railway, with 45% of the overall project completed [1] - The Chengdu North Station expansion and the Chengdu railway station capacity enhancement are ongoing, with all personnel committed to meeting project deadlines [1] Group 1 - The Xining to Chengdu high-speed railway has seen the completion of 6 out of 14 tunnels and 88% of bridge works, with overall project progress at 45% [1] - The Chengdu North Station has completed various supporting projects, including high slope protection and emergency response buildings [1] - The Chengdu railway station is being upgraded to enhance its capacity as a comprehensive transportation hub, with all machinery operating at full speed [1] Group 2 - The Xuyou high-speed railway project has implemented an intelligent production line, achieving 65% of box beam pre-fabrication and 53% of beam installation [2] - The Yukun high-speed railway's main tunnel and bridge works are completed, with 99% of box beam installation finished [2] - The next phase for the Yukun high-speed railway involves the commencement of ballastless track construction to ensure timely operation [2]

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].